bcrypt@1.0.3 install: `node-pre-gyp install --fall

While installing bcrypt I'm getting this error in my windows machine, I'm using

node v8.9.4
npm v5.6.0
bcrypt v1.0.3

C:\Users\user\Desktop\mysql_node_api\register_login\register_login>npm install bcrypt --save > bcrypt@1.0.3 install C:\Users\user\Desktop\mysql_node_api\register_login\regis ter_login\node_modules\bcrypt > node-pre-gyp install --fallback-to-build node-pre-gyp ERR! Tried to download(undefined): https://github.com/kelektiv/node .bcrypt.js/releases/download/v1.0.3/bcrypt_lib-v1.0.3-node-v57-win32-x64.tar.gz node-pre-gyp ERR! Pre-built binaries not found for bcrypt@1.0.3 and node@8.9.4 ( node-v57 ABI) (falling back to source compile with node-gyp) gyp ERR! configure error gyp ERR! stack Error: Can't find Python executable "python", you can set the PYT HON env variable. gyp ERR! stack at PythonFinder.failNoPython (C:\Users\user\AppData\Roaming\n pm\node_modules\npm\node_modules\node-gyp\lib\configure.js:483:19) gyp ERR! stack at PythonFinder. (C:\Users\user\AppData\Roaming\np m\node_modules\npm\node_modules\node-gyp\lib\configure.js:508:16) gyp ERR! stack at C:\Users\user\AppData\Roaming\npm\node_modules\npm\node_mo dules\graceful-fs\polyfills.js:284:29 gyp ERR! stack at FSReqWrap.oncomplete (fs.js:152:21) gyp ERR! System Windows_NT 6.1.7601 gyp ERR! command "C:\Program Files\nodejs\node.exe" "C:\Users\user\AppData \Roaming\npm\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" "co nfigure" "--fallback-to-build" "--module=C:\Users\user\Desktop\mysql_node_ap i\register_login\register_login\node_modules\bcrypt\lib\binding\bcrypt_li b.node" "--module_name=bcrypt_lib" "--module_path=C:\Users\user\Desktop\mysq l_node_api\register_login\register_login\node_modules\bcrypt\lib\binding" gyp ERR! cwd C:\Users\user\Desktop\mysql_node_api\register_login\register_login\ node_modules\bcrypt gyp ERR! node -v v8.9.4 gyp ERR! node-gyp -v v3.6.2 gyp ERR! not ok node-pre-gyp ERR! build error node-pre-gyp ERR! stack Error: Failed to execute 'C:\Program Files\nodejs\node.e xe C:\Users\user\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\bin\ node-gyp.js configure --fallback-to-build --module=C:\Users\user\Desktop\mysql_n ode_api\register_login\register_login\node_modules\bcrypt\lib\binding\bcrypt_lib .node --module_name=bcrypt_lib --module_path=C:\Users\user\Desktop\mysql_node_ap i\register_login\register_login\node_modules\bcrypt\lib\binding' (1) node-pre-gyp ERR! stack at ChildProcess. (C:\Users\user\Desktop\m ysql_node_api\register_login\register_login\node_modules\node-pre-gyp\lib\util\c ompile.js:83:29) node-pre-gyp ERR! stack at emitTwo (events.js:126:13) node-pre-gyp ERR! stack at ChildProcess.emit (events.js:214:7) node-pre-gyp ERR! stack at maybeClose (internal/child_process.js:925:16) node-pre-gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/chi ld_process.js:209:5) node-pre-gyp ERR! System Windows_NT 6.1.7601 node-pre-gyp ERR! command "C:\Program Files\nodejs\node.exe" "C:\Users\user \Desktop\mysql_node_api\register_login\register_login\node_modules\node-pr e-gyp\bin\node-pre-gyp" "install" "--fallback-to-build" node-pre-gyp ERR! cwd C:\Users\user\Desktop\mysql_node_api\register_login\regist er_login\node_modules\bcrypt node-pre-gyp ERR! node -v v8.9.4 node-pre-gyp ERR! node-pre-gyp -v v0.6.36 node-pre-gyp ERR! not ok Failed to execute 'C:\Program Files\nodejs\node.exe C:\Users\user\AppData\Roamin g\npm\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js configure --fallbac k-to-build --module=C:\Users\user\Desktop\mysql_node_api\register_login\register _login\node_modules\bcrypt\lib\binding\bcrypt_lib.node --module_name=bcrypt_lib --module_path=C:\Users\user\Desktop\mysql_node_api\register_login\register_login \node_modules\bcrypt\lib\binding' (1) npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! bcrypt@1.0.3 install: node-pre-gyp install --fallback-to-build npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the bcrypt@1.0.3 install script. npm ERR!

This is probably not a problem with npm. There is likely additional log ging output above. npm ERR! A complete log of this run can be found in: npm ERR! C:\Users\user\AppData\Roaming\npm-cache_logs\2018-02-25T14_42_29_5 29Z-debug.log

Finally after many research I solve this problem. So, guys those who are facing this problem just do the below processes,

I just installed python and set the environment variables now it's working perfect for me.

Install Python (while installing in windows you can get the option for add path in environment variables, just tick the check box or else)
Set the path in environment variables
Now store the downloaded python.exe file in this directory "c:\Python\27\python.exe"
Now run this cmd in terminal npm config set python "c:\Python\27\python.exe"

Now do npm install or run your project. I think now your problem is solved. :-)