Gradle: Couldn't connect to Kotlin daemon on W

问题:

When I try a task that involves a compileKotlin (or compileTestKotlin), then I receive this warning and the result is unpleasant long duration of the build process:

Could not perform incremental compilation: Could not connect to Kotlin compile daemon

Could not connect to kotlin daemon. Using fallback strategy.

---

I'm not sure the issue is related to my OS (Windows) or not, but I have the same project (with synchronized files) on a remote machine with Linux OS and the issue doesn't exist there. See below comparison:

1. The project on my remote machine (Linux) with a little change in Kotlin sources (in one module):

   $ ./gradlew build
   
   Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.
   Use '--warning-mode all' to show the individual deprecation warnings.
   See https://docs.gradle.org/5.0/userguide/command_line_interface.html#sec:command_line_warnings
   
   BUILD SUCCESSFUL in 5s
   46 actionable tasks: 17 executed, 29 up-to-date
   

2. Same project on my local machine (Windows) with same change:

   > gradlew build                                                                                       
   
   > Task :backend:compileKotlin                                                                         
   Could not perform incremental compilation: Could not connect to Kotlin compile daemon                 
   Could not connect to kotlin daemon. Using fallback strategy.                                          
   
   warning: the '-d' option with a directory destination is ignored because '-Xbuild-file' is specified  
   
   Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.           
   Use '--warning-mode all' to show the individual deprecation warnings.                                 
   See https://docs.gradle.org/5.0/userguide/command_line_interface.html#sec:command_line_warnings       
   
   BUILD SUCCESSFUL in 14s                                                                               
   46 actionable tasks: 17 executed, 29 up-to-date
   

Especially see build duration time in above two samples (and the warning after compileKotlin task on Windows machine). Even though my local machine (Windows) has more powerful hardware, but the result is the opposite (Gradle daemon is running on both).

---

In order to further analyzability I also publish the output of gradle -v and java -version on both machines:

1. Linux:

   $ ./gradlew -v
   
   ------------------------------------------------------------
   Gradle 5.0
   ------------------------------------------------------------
   
   Build time:   2018-11-26 11:48:43 UTC
   Revision:     7fc6e5abf2fc5fe0824aec8a0f5462664dbcd987
   
   Kotlin DSL:   1.0.4
   Kotlin:       1.3.10
   Groovy:       2.5.4
   Ant:          Apache Ant(TM) version 1.9.13 compiled on July 10 2018
   JVM:          11.0.1 (Oracle Corporation 11.0.1+13)
   OS:           Linux 3.10.0-862.11.6.el7.x86_64 amd64
   
   
   $ java -version
   openjdk version "1.8.0_191"
   OpenJDK Runtime Environment (build 1.8.0_191-b12)
   OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode)
   

2. Windows:

   > gradlew -v                                                           
   
   ------------------------------------------------------------           
   Gradle 5.0                                                             
   ------------------------------------------------------------           
   
   Build time:   2018-11-26 11:48:43 UTC                                  
   Revision:     7fc6e5abf2fc5fe0824aec8a0f5462664dbcd987                 
   
   Kotlin DSL:   1.0.4                                                    
   Kotlin:       1.3.10                                                   
   Groovy:       2.5.4                                                    
   Ant:          Apache Ant(TM) version 1.9.13 compiled on July 10 2018   
   JVM:          11.0.1 (Oracle Corporation 11.0.1+13)                    
   OS:           Windows 10 10.0 amd64
   
   
   > java -version                                                     
   openjdk version "11.0.1" 2018-10-16                          
   OpenJDK Runtime Environment 18.9 (build 11.0.1+13)           
   OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13, mixed mode)  
   

---

Global gradle.properties files on two machines are exactly same (and there is no poject-local gradle.properties file for none):

org.gradle.daemon=true
org.gradle.jvmargs=-Xmx1536m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
org.gradle.parallel=true

(without comments)

---

UPDATE 1:

There is no problem when Gradle JVM has been set to JDK 8. But with JDK 9+ you can see the issue.

---

UPDATE 2:

I updated my Kotlin plugin from 1.3.10 to 1.3.11. Also, tested 1.3.20-eap-52. But the issue persists.

---

UPDATE 3:

I ran Gradle's compileKotlin task with --debug option to get more information. The most important parts of the output are:

^{Note: Below tasks have been run when Gradle daemon was running, Kotlin compile daemon was stopped (if already running) and a little change has been made in a Kotlin source.}

I. When using JDK 8 as Gradle's JVM (OK):

11:01:44 PM: Executing task 'compileKotlin --debug'...
...
22:58:20.512 [DEBUG] [org.gradle.api.Project] [KOTLIN] Kotlin compiler args: -Xadd-compiler-builtins -Xbuild-file=C:\Users\I\AppData\Local\Temp\kjps3085207010700515672GradleKotlinJVM.script.xml -classpath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk8\1.3.10\71d0fa967493eb76648b575edf1762cb2d0c7f10\kotlin-stdlib-jdk8-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk7\1.3.10\4d147bf43060dc43d61b096e24da1e67dfe0c032\kotlin-stdlib-jdk7-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar -d D:\Devel\IdeaProjects\GradleKotlinJVM\build\classes\kotlin\main -jvm-target 1.8 -Xload-builtins-from-dependencies -module-name GradleKotlinJVM -no-reflect -no-stdlib -Xplugin=D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-scripting-compiler-embeddable\1.3.10\e96a6125793c4ab0258119fcdce9d182f42d32b0\kotlin-scripting-compiler-embeddable-1.3.10.jar -verbose
...
22:58:33.515 [INFO] [org.gradle.api.Task] i: found daemon on port 17519 (270393 ms old), trying to connect
22:58:33.515 [INFO] [org.gradle.api.Task] i: cannot connect to registry: Connection refused: connect
22:58:33.515 [INFO] [org.gradle.api.Task] i: found fresh run file 'C:\Users\I\AppData\Local\kotlin\daemon\kotlin-daemon.2019-01-06T19-23-50.118Z.ef9f56f7564e12d191d0ba8e50b581f8.17519.run' (270393 ms old), but no daemon, ignoring it
22:58:33.515 [INFO] [org.gradle.api.Task] i: found daemon on port 17502 (63606 ms old), trying to connect
22:58:33.515 [INFO] [org.gradle.api.Task] i: cannot connect to registry: Connection refused: connect
22:58:33.515 [INFO] [org.gradle.api.Task] i: found fresh run file 'C:\Users\I\AppData\Local\kotlin\daemon\kotlin-daemon.2019-01-06T19-27-16.900Z.ef9f56f7564e12d191d0ba8e50b581f8.17502.run' (63606 ms old), but no daemon, ignoring it
22:58:33.515 [INFO] [org.gradle.api.Task] i: starting the daemon as: C:\Program Files\Java\openjdk1.8.0_202\jre\bin\java -cp D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar;C:\Program Files\Java\openjdk1.8.0_202\lib\tools.jar -Djava.awt.headless=true -Djava.rmi.server.hostname=127.0.0.1 -Xmx1536m -XX:MaxPermSize=512m -Dkotlin.environment.keepalive org.jetbrains.kotlin.daemon.KotlinCompileDaemon --daemon-runFilesPath C:\Users\I\AppData\Local\kotlin\daemon --daemon-autoshutdownIdleSeconds=7200 --daemon-compilerClasspath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar;C:\Program Files\Java\openjdk1.8.0_202\lib\tools.jar
22:58:33.515 [INFO] [org.gradle.api.Task] i: Received the message signalling that the daemon is ready
22:58:33.516 [INFO] [org.gradle.api.Task] i: new daemon started, trying to find it
22:58:33.516 [INFO] [org.gradle.api.Task] i: found daemon on port 17519 (277256 ms old), trying to connect
22:58:33.516 [INFO] [org.gradle.api.Task] i: cannot connect to registry: Connection refused: connect
22:58:33.516 [INFO] [org.gradle.api.Task] i: found fresh run file 'C:\Users\I\AppData\Local\kotlin\daemon\kotlin-daemon.2019-01-06T19-23-50.118Z.ef9f56f7564e12d191d0ba8e50b581f8.17519.run' (277256 ms old), but no daemon, ignoring it
22:58:33.516 [INFO] [org.gradle.api.Task] i: found daemon on port 17502 (70469 ms old), trying to connect
22:58:33.516 [INFO] [org.gradle.api.Task] i: cannot connect to registry: Connection refused: connect
22:58:33.516 [INFO] [org.gradle.api.Task] i: found fresh run file 'C:\Users\I\AppData\Local\kotlin\daemon\kotlin-daemon.2019-01-06T19-27-16.900Z.ef9f56f7564e12d191d0ba8e50b581f8.17502.run' (70469 ms old), but no daemon, ignoring it
22:58:33.516 [INFO] [org.gradle.api.Task] i: found daemon on port 17507 (70 ms old), trying to connect
22:58:33.516 [INFO] [org.gradle.api.Task] i: connected to the daemon
22:58:33.518 [INFO] [org.gradle.api.Project] Options for KOTLIN DAEMON: IncrementalCompilationOptions(super=CompilationOptions(compilerMode=INCREMENTAL_COMPILER, targetPlatform=JVM, reportCategories=[0, 1, 2, 3, 4], reportSeverity=3, requestedCompilationResults=[0]), areFileChangesKnown=true, modifiedFiles=[D:\Devel\IdeaProjects\GradleKotlinJVM\src\main\kotlin\Main.kt], deletedFiles=[], workingDir=D:\Devel\IdeaProjects\GradleKotlinJVM\build\kotlin\compileKotlin, customCacheVersionFileName='gradle-format-version.txt', customCacheVersion=4, multiModuleICSettings=MultiModuleICSettings(buildHistoryFile=D:\Devel\IdeaProjects\GradleKotlinJVM\build\kotlin\compileKotlin\build-history.bin, useModuleDetection=false), usePreciseJavaTracking=truelocalStateDirs=[D:\Devel\IdeaProjects\GradleKotlinJVM\build\classes\kotlin\main])
22:58:33.524 [DEBUG] [sun.rmi.transport.tcp] Daemon worker: reuse connection
...
22:58:35.428 [DEBUG] [org.gradle.api.Project] [KOTLIN] [IC] compiling with args: [-Xadd-compiler-builtins, -Xbuild-file=C:\Users\I\AppData\Local\Temp\kjps6683894818132820708GradleKotlinJVM.script.xml, -classpath, D:\Devel\IdeaProjects\GradleKotlinJVM\build\classes\kotlin\main;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk8\1.3.10\71d0fa967493eb76648b575edf1762cb2d0c7f10\kotlin-stdlib-jdk8-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk7\1.3.10\4d147bf43060dc43d61b096e24da1e67dfe0c032\kotlin-stdlib-jdk7-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar, -jvm-target, 1.8, -Xload-builtins-from-dependencies, -module-name, GradleKotlinJVM, -no-reflect, -no-stdlib, -Xplugin=D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-scripting-compiler-embeddable\1.3.10\e96a6125793c4ab0258119fcdce9d182f42d32b0\kotlin-scripting-compiler-embeddable-1.3.10.jar, -Xreport-output-files, -verbose]
...
11:01:53 PM: Task execution finished 'compileKotlin --debug'.

II. When using JDK 11 as Gradle's JVM (Problem here):

11:01:44 PM: Executing task 'compileKotlin --debug'...
...
23:01:45.888 [DEBUG] [org.gradle.api.Project] [KOTLIN] Kotlin compiler args: -Xadd-compiler-builtins -Xbuild-file=C:\Users\I\AppData\Local\Temp\kjps11452575260818015211GradleKotlinJVM.script.xml -classpath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk8\1.3.10\71d0fa967493eb76648b575edf1762cb2d0c7f10\kotlin-stdlib-jdk8-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk7\1.3.10\4d147bf43060dc43d61b096e24da1e67dfe0c032\kotlin-stdlib-jdk7-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar -d D:\Devel\IdeaProjects\GradleKotlinJVM\build\classes\kotlin\main -jvm-target 1.8 -Xload-builtins-from-dependencies -module-name GradleKotlinJVM -no-reflect -no-stdlib -Xplugin=D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-scripting-compiler-embeddable\1.3.10\e96a6125793c4ab0258119fcdce9d182f42d32b0\kotlin-scripting-compiler-embeddable-1.3.10.jar -verbose
...
23:01:48.134 [INFO] [org.gradle.api.Task] i: starting the daemon as: C:\Program Files\Java\openjdk-11.0.1\bin\java -cp D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar -Djava.awt.headless=true -Djava.rmi.server.hostname=127.0.0.1 -Xmx1536m -XX:MaxPermSize=512m -Dkotlin.environment.keepalive org.jetbrains.kotlin.daemon.KotlinCompileDaemon --daemon-runFilesPath C:\Users\I\AppData\Local\kotlin\daemon --daemon-autoshutdownIdleSeconds=7200 --daemon-compilerClasspath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar
23:01:48.134 [INFO] [org.gradle.api.Task] i: [daemon] OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
23:01:48.134 [INFO] [org.gradle.api.Task] i: Received the message signalling that the daemon is ready
23:01:48.134 [INFO] [org.gradle.api.Task] i: new daemon started, trying to find it
23:01:48.134 [INFO] [org.gradle.api.Task] i: starting the daemon as: C:\Program Files\Java\openjdk-11.0.1\bin\java -cp D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar -Djava.awt.headless=true -Djava.rmi.server.hostname=127.0.0.1 -Xmx1536m -XX:MaxPermSize=512m -Dkotlin.environment.keepalive org.jetbrains.kotlin.daemon.KotlinCompileDaemon --daemon-runFilesPath C:\Users\I\AppData\Local\kotlin\daemon --daemon-autoshutdownIdleSeconds=7200 --daemon-compilerClasspath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar
23:01:48.134 [INFO] [org.gradle.api.Task] i: [daemon] OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
23:01:48.134 [INFO] [org.gradle.api.Task] i: Received the message signalling that the daemon is ready
23:01:48.134 [INFO] [org.gradle.api.Task] i: new daemon started, trying to find it
23:01:48.137 [WARN] [org.gradle.api.Project] Could not perform incremental compilation: Could not connect to Kotlin compile daemon
23:01:48.137 [WARN] [org.gradle.api.Project] Could not connect to kotlin daemon. Using fallback strategy.
23:01:49.486 [LIFECYCLE] [system.err] 
23:01:49.486 [ERROR] [system.err] logging: using Kotlin home directory <no_path>
23:01:49.521 [ERROR] [system.err] logging: configuring the compilation environment
23:01:50.538 [ERROR] [system.err] logging: loading modules: [java.se, jdk.accessibility, jdk.attach, jdk.compiler, jdk.dynalink, jdk.httpserver, jdk.jartool, jdk.javadoc, jdk.jconsole, jdk.jdi, jdk.jfr, jdk.jshell, jdk.jsobject, jdk.management, jdk.management.jfr, jdk.net, jdk.scripting.nashorn, jdk.sctp, jdk.security.auth, jdk.security.jgss, jdk.unsupported, jdk.unsupported.desktop, jdk.xml.dom, java.base, java.compiler, java.datatransfer, java.desktop, java.xml, java.instrument, java.logging, java.management, java.management.rmi, java.rmi, java.naming, java.net.http, java.prefs, java.scripting, java.security.jgss, java.security.sasl, java.sql, java.transaction.xa, java.sql.rowset, java.xml.crypto, jdk.internal.jvmstat, jdk.management.agent, jdk.jdwp.agent, jdk.internal.ed, jdk.internal.le, jdk.internal.opt]
23:01:53.459 [ERROR] [system.err] warning: the '-d' option with a directory destination is ignored because '-Xbuild-file' is specified
...
11:01:53 PM: Task execution finished 'compileKotlin --debug'.

III. When using JDK 11 as Gradle's JVM, but on Linux (OK):

$ ./gradlew compileKotlin --debug
...
01:33:20.145 [INFO] [org.gradle.api.Task] i: starting the daemon as: /usr/local/jdk-11.0.1/bin/java -cp /usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-compiler-embeddable/1.3.10/adc9e577de39fba3db6d60662892118afedd713/kotlin-compiler-embeddable-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/1.3.10/dd02865be0351707554b16a896b766b2396cdafa/kotlin-reflect-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.3.10/b178c1501609c6e4ee8be635513cb023a466457d/kotlin-stdlib-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-script-runtime/1.3.10/1d2bac36f99b84e1493244f12629bc0756a3ff90/kotlin-script-runtime-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.3.10/1b19d99229dcedad7caf50534dce38fe82845269/kotlin-stdlib-common-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains/annotations/13.0/919f0dfe192fb4e063e7dacadee7f8bb9a2672a9/annotations-13.0.jar -Djava.awt.headless=true -Djava.rmi.server.hostname=127.0.0.1 -Xmx1536m -XX:MaxPermSize=512m -Dkotlin.environment.keepalive org.jetbrains.kotlin.daemon.KotlinCompileDaemon --daemon-runFilesPath /usr/share/nginx/html/0xy/.kotlin/daemon --daemon-autoshutdownIdleSeconds=7200 --daemon-compilerClasspath /usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-compiler-embeddable/1.3.10/adc9e577de39fba3db6d60662892118afedd713/kotlin-compiler-embeddable-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/1.3.10/dd02865be0351707554b16a896b766b2396cdafa/kotlin-reflect-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.3.10/b178c1501609c6e4ee8be635513cb023a466457d/kotlin-stdlib-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-script-runtime/1.3.10/1d2bac36f99b84e1493244f12629bc0756a3ff90/kotlin-script-runtime-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.3.10/1b19d99229dcedad7caf50534dce38fe82845269/kotlin-stdlib-common-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains/annotations/13.0/919f0dfe192fb4e063e7dacadee7f8bb9a2672a9/annotations-13.0.jar
01:33:20.145 [INFO] [org.gradle.api.Task] i: [daemon] OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
01:33:20.145 [INFO] [org.gradle.api.Task] i: Received the message signalling that the daemon is ready
01:33:20.145 [INFO] [org.gradle.api.Task] i: new daemon started, trying to find it
01:33:20.145 [INFO] [org.gradle.api.Task] i: found daemon on port 17613 (56 ms old), trying to connect
01:33:20.145 [INFO] [org.gradle.api.Task] i: connected to the daemon
01:33:20.145 [INFO] [org.gradle.api.Project] Options for KOTLIN DAEMON: IncrementalCompilationOptions(super=CompilationOptions(compilerMode=INCREMENTAL_COMPILER, targetPlatform=JVM, reportCategories=[0, 1, 2, 3, 4], reportSeverity=3, requestedCompilationResults=[0]), areFileChangesKnown=false, modifiedFiles=null, deletedFiles=null, workingDir=/usr/share/nginx/html/0xy/test/build/kotlin/compileKotlin, customCacheVersionFileName='gradle-format-version.txt', customCacheVersion=4, multiModuleICSettings=MultiModuleICSettings(buildHistoryFile=/usr/share/nginx/html/0xy/test/build/kotlin/compileKotlin/build-history.bin, useModuleDetection=false), usePreciseJavaTracking=truelocalStateDirs=[/usr/share/nginx/html/0xy/test/build/classes/kotlin/main])
...
01:33:21.920 [DEBUG] [org.gradle.api.Project] [KOTLIN] [IC] compiling with args: [-Xadd-compiler-builtins, -Xbuild-file=/tmp/kjps15100965302804914597GradleKotlinJVM.script.xml, -classpath, /usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk8/1.3.10/71d0fa967493eb76648b575edf1762cb2d0c7f10/kotlin-stdlib-jdk8-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk7/1.3.10/4d147bf43060dc43d61b096e24da1e67dfe0c032/kotlin-stdlib-jdk7-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.3.10/b178c1501609c6e4ee8be635513cb023a466457d/kotlin-stdlib-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.3.10/1b19d99229dcedad7caf50534dce38fe82845269/kotlin-stdlib-common-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains/annotations/13.0/919f0dfe192fb4e063e7dacadee7f8bb9a2672a9/annotations-13.0.jar, -jvm-target, 1.8, -Xload-builtins-from-dependencies, -module-name, GradleKotlinJVM, -no-reflect, -no-stdlib, -Xplugin=/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-scripting-compiler-embeddable/1.3.10/e96a6125793c4ab0258119fcdce9d182f42d32b0/kotlin-scripting-compiler-embeddable-1.3.10.jar, -Xreport-output-files, -verbose]
...

There are some suspected events in the above logs (second), but I can't exactly understand the meaning of them and that they are related to my problem or not:

1. Why two (exactly equal) tries has occurred to start Kotlin compile daemon?
2. There are some errors. But they are all after warnings about Kotlin's daemon problem.

3. The latest error/warning:

   [ERROR] [system.err] warning: the '-d' option with a directory destination is ignored because '-Xbuild-file' is specified
   

   is the most suspected thing! Because it's the only message you can't find in other logs. Also see here. I asked about it in another post.

回答1:

Finally, I found the source of the issue ... After some days!

I found out the issue is from my user account. So decided to revert any user-dependent thing to its first state. During clearing Temp folder (in AppData\local\) accidentally I saw these files:

kotlin-daemon.Û²Û°Û±Û¹-Û°Û±-Û°Û¸.Û°Û³-ÛµÛ´-Û±Û²-Û¶Û´Û¸.00.log
kotlin-daemon.Û²Û°Û±Û¹-Û°Û±-Û°Û¸.Û°Û³-ÛµÛ´-Û±Û²-Û¶Û´Û¸.00.log

Yes! The problem has come from unicode encoding issues (probably between NTFS and UTF-8)! Although these are log files and maybe not important their names, this issue can exist somewhere else!

As you can guess, damaged part of file names are date & time. So (unfortunately) I forced to revert my personalizations of Windows user account's date & time formats from my favorite (Persian (Iran)) to English (United States):

And the problem solved immediately:

> wmic process where "name='java.exe'" get processId, executablePath, commandLine /format:list

CommandLine=D:\Devel\JDK\openjdk-11.0.1\bin\java.exe -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.lang.invoke=ALL-UNNAMED --add-opens java.prefs/java.util.prefs=ALL-UNNAMED -Xmx1536m -Dfile.encoding=UTF-8 -Duser.country=US -Duser.language=en -Duser.variant -cp D:\Devel\.gradle\wrapper\dists\gradle-5.0-all\4mxuau4c77thx8zlvtz4xiez7\gradle-5.0\lib\gradle-launcher-5.0.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 5.0
ExecutablePath=D:\Devel\JDK\openjdk-11.0.1\bin\java.exe
ProcessId=9168

CommandLine=D:\Devel\JDK\openjdk-11.0.1\bin\java -cp D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar -Djava.awt.headless=true -Djava.rmi.server.hostname=127.0.0.1 -Xmx1536m -XX:MaxPermSize=512m -Dkotlin.environment.keepalive org.jetbrains.kotlin.daemon.KotlinCompileDaemon --daemon-runFilesPath C:\Users\I\AppData\Local\kotlin\daemon --daemon-autoshutdownIdleSeconds=7200 --daemon-compilerClasspath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar
ExecutablePath=D:\Devel\JDK\openjdk-11.0.1\bin\java.exe
ProcessId=12088

The second process is Kotlin compile daemon.

---

Also log files:

kotlin-daemon.2019-01-08.03-51-11-111.00.log
kotlin-daemon.2019-01-08.03-51-11-111.00.log.lck

^{(Note that .log.lck file didn't exist in previous state!)}