Intellij idea says Java Home is Different

Question

The newly created daemon process has a different context than expected. It won't be possible to reconnect to this daemon. Context mismatch:
Java home is different.

Wanted:DefaultDaemonContext[uid=null,javaHome=/home/administrator/Downloads/idea-IU-145.1617.8/jre,daemonRegistryDir=/home/administrator/.gradle/daemon,pid=11963,idleTimeout=null,daemonOpts=-XX:MaxPermSize=256m,-XX:+HeapDumpOnOutOfMemoryError,-Xmx1024m,-Dfile.encoding=UTF-8,-Duser.country=IN,-Duser.language=en,-Duser.variant]

Actual: DefaultDaemonContext[uid=4839fb8c-418b-4666-9a66-40a60133958a,javaHome=/usr/lib/jvm/java-8-openjdk-amd64,daemonRegistryDir=/home/administrator/.gradle/daemon,pid=15202,idleTimeout=60000,daemonOpts=-XX:MaxPermSize=256m,-XX:+HeapDumpOnOutOfMemoryError,-Xmx1024m,-Dfile.encoding=UTF-8,-Duser.country=IN,-Duser.language=en,-Duser.variant]

Answer 1

Fwiw - Had a similar thing after, and just reopening the project by picking the build.gradle file fixed it. (Also, done brew cask install java which placed jdk 10 in the default path)

Answer 2

Worked like magic.. have been struggling for 2 days now. org.gradle.java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_162.jdk/Contents/Home in ~/.gradle/gradle.properties

Answer 3

IntelliJ broke when I copied tools.jar to a jre/lib, attempting to make hot attach work.

Answer 4

Though I did not find the root cause where the different javaHomes have been taken from, at least I found a workaround that worked for me:

Try setting the following in your gradle.properties (either in $HOME/.gradle/ or in your project build dir):

org.gradle.java.home=/usr/lib/jvm/java-8-openjdk-amd64

Answer 5

Be sure to check and correct JDK version in these 3 places:

1. Check Preferences -> Build,... -> Build Tools -> Gradle -> Gradle JVM:
2. Check Project Structure -> Project Settings -> Project -> Project SDK:
   
3. Check Project Structure -> Platform Settings -> SDKs:

Fixing gradle.properties is a dirty workaround. Better fix this at the IDE level.

Answer 6

I ran into the same problem. This answer helped me.

Solution: In the bin folder of IntelliJ where you have it installed, run idea64.exe not idea.exe.