Version 0.8.6: * What went wrong: Execution failed for task ':article:generateProto'. > protoc: stdout: . stderr: --grpckotlin_out: protoc-gen-grpckotlin: %1 is not a valid Win32 application

[UkonnRa]

Using ./gradlew clean generateProto and got the following error on Windows 10:

* What went wrong: Execution failed for task ':article:generateProto'. > protoc: stdout: . stderr: --grpckotlin_out: protoc-gen-grpckotlin: %1 is not a valid Win32 application

But the same command works fine on my Mac

[zpencer]

Is protoc-gen-grpckotlin a third party plugin?
Can you share more info on how your build.gradle is configured?

Also, if you run your build with --info you will get some additional info that is helpful for debugging. Can you paste it here?
For the failing generateProto task, there should be a line immediately above your pasted line that shows the exact command line invocation.

$ ./gradlew clean build --info

[rocketraman]

I have a similar problem with the Kroto+ plugin, which is declared in the build as follows:

protobuf {
  protoc {
    artifact = 'com.google.protobuf:protoc:3.6.1'
  }
  plugins {
    kroto {
      artifact = "com.github.marcoferrer.krotoplus:protoc-gen-kroto-plus:$krotoplusVersion:jvm8@jar"
    }
  }
  ...
}

When actually executed, this adds the following additional parameter to the protoc invocation:

 --plugin=protoc-gen-kroto=C:\Users\Me\.gradle\caches\modules-2\files-2.1\com.github.marcoferrer.krotoplus\protoc-gen-kroto-plus\0.1.3\3c41d071d04c8558822447643894490e33a857b7\protoc-gen-kroto-plus-0.1.3-jvm8.jar

It appears that protoc is attempting to load this jar file as a Win32 application, and failing to do so with the "not a valid Win32 application" error result.

I have tried associating jar files to java, and this seems to have worked, but the error remains the same.

[zpencer]

@rocketraman can you clarify what you mean by working, but the error remains the same?

You are correct that protoc plugins are just executables that protoc calls out to. I inspected the jar and it appears to be a spring boot bash script. I'm not sure what's the easiest way to get this working on Windows. I would suggest opening an issue on com.github.marcoferrer.krotoplus.

[rocketraman]

@rocketraman can you clarify what you mean by working, but the error remains the same?

I meant jar files are correctly associated with java in Windows, but that didn't fix it.

You are correct that protoc plugins are just executables that protoc calls out to. I inspected the jar and it appears to be a spring boot bash script. I'm not sure what's the easiest way to get this working on Windows. I would suggest opening an issue on com.github.marcoferrer.krotoplus.

Yes, @marcoferrer of krotoplus confirmed that the issue is that the spring boot bash script appears not to be executable on windows, and suggested a temporary workaround of a batch script that in turn executes the plugin. This does seem to work. So there doesn't appear to be any issue with the protobuf gradle plugin. Sorry for the noise!

[marcoferrer]

@zhangkun83 Since this isnt related to the protobuf plugin I think it can be closed out.