"webpack" executable not found in windows environment.

[Odomontois]

I'm getting an error during run task abount missing "webpack".
Webpack module is installed both in global and project level node_modules, so I can run webpack --watch in project folder, but it can't still be found during hook execution.

Detailed error output:

java.io.IOException: Cannot run program "webpack" (in directory "C:\prog\projects\SBT\boogle-ms"): CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1042)
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.(ProcessImpl.java:386)
at java.lang.ProcessImpl.start(ProcessImpl.java:137)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1023)

I have

npm --version
3.9.3

and

sbt.version=0.13.11

error output from sbt

[boogle-ms] $ last compile:run
java.io.IOException: Cannot run program "webpack" (in directory "C:\prog\projects\SBT\boogle-ms"): CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1042)
at sbt.SimpleProcessBuilder.run(ProcessImpl.scala:349)
at sbt.AbstractProcessBuilder.run(ProcessImpl.scala:126)
at sbt.AbstractProcessBuilder.run(ProcessImpl.scala:125)
at Webpack$WebpackHook$2$.beforeStarted(Webpack.scala:12)
at play.runsupport.Reloader$$anonfun$13.apply(Reloader.scala:214)
at play.runsupport.Reloader$$anonfun$13.apply(Reloader.scala:214)
at play.runsupport.RunHook$RunHooksRunner$$anonfun$run$extension$1.apply(RunHook.scala:60)
at play.runsupport.RunHook$RunHooksRunner$$anonfun$run$extension$1.apply(RunHook.scala:58)
at scala.collection.immutable.List.foreach(List.scala:318)
at play.runsupport.RunHook$RunHooksRunner$.run$extension(RunHook.scala:58)
at play.runsupport.Reloader$.startDevMode(Reloader.scala:214)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.devModeServer$lzycompute$1(PlayRun.scala:74)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.play$sbt$run$PlayRun$$anonfun$$anonfun$$anonfun$$devModeServer$1(PlayRun.scala:74)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.apply(PlayRun.scala:100)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.apply(PlayRun.scala:53)
at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
at sbt.std.Transform$$anon$4.work(System.scala:63)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.Execute.work(Execute.scala:237)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228)
at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.(ProcessImpl.java:386)
at java.lang.ProcessImpl.start(ProcessImpl.java:137)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1023)
at sbt.SimpleProcessBuilder.run(ProcessImpl.scala:349)
at sbt.AbstractProcessBuilder.run(ProcessImpl.scala:126)
at sbt.AbstractProcessBuilder.run(ProcessImpl.scala:125)
at Webpack$WebpackHook$2$.beforeStarted(Webpack.scala:12)
at play.runsupport.Reloader$$anonfun$13.apply(Reloader.scala:214)
at play.runsupport.Reloader$$anonfun$13.apply(Reloader.scala:214)
at play.runsupport.RunHook$RunHooksRunner$$anonfun$run$extension$1.apply(RunHook.scala:60)
at play.runsupport.RunHook$RunHooksRunner$$anonfun$run$extension$1.apply(RunHook.scala:58)
at scala.collection.immutable.List.foreach(List.scala:318)
at play.runsupport.RunHook$RunHooksRunner$.run$extension(RunHook.scala:58)
at play.runsupport.Reloader$.startDevMode(Reloader.scala:214)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.devModeServer$lzycompute$1(PlayRun.scala:74)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.play$sbt$run$PlayRun$$anonfun$$anonfun$$anonfun$$devModeServer$1(PlayRun.scala:74)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.apply(PlayRun.scala:100)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun$apply$3.apply(PlayRun.scala:53)
at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
at sbt.std.Transform$$anon$4.work(System.scala:63)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.Execute.work(Execute.scala:237)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228)
at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
error java.io.IOException: Cannot run program "webpack" (in directory "C:\prog\projects\SBT\boogle-ms"): CreateProcess error=2, The system cannot find the file spe
cified

[gmsa]

Did you manage to fix this? How?

[ekastimo]

Hello, this may Help some one, sys.process._ doesn't execute a shell commands directly, it executes an executable(.exe file) with arguments. So comands Like ls , dir which have executables all work fine but webpack won't work directly.
However, we can pass the webpack commad to cmdto have it executed, i.e.
Process("cmd /c \"webpack\"", base).run()
And everything will work fine.

Note: Use sh in place of cmd for Linux
Regards.

[sakar-sr]

hello ekastimo

i tried your method, but gives an error saying

'webpack' is not recognized as an internal or external command, operable program or batch file.

please help
good day

[ekastimo]

Hello sakar-sr, please make sure you have webpack installed globally using npm
i.e. npm install -g webpack

[sakar-sr]

Hello ekastimo,

Thanks it works like a charm. I tried it with scala play and vue.js and works great.

Have a Nice day