Forge 1.12.2-14.23.5.2807 gradlew setupDecompWorkspace Build Failed With An Exception Error

[nightstick24]

Hey there, trying to take a look at modding and I'm having some trouble. I'm following the Getting Started guide on the Docs section of the site - https://mcforge.readthedocs.io/en/latest/gettingstarted/ - and I'm running into an error with the gradlew setupDecompWorkspace bit. I run it and I'm getting the error below.

 

Spoiler

FAILURE: Build failed with an exception.

* Where:
Build file 'F:\Libraries\Documents\Eclipse\Workspace\forge-1.12.2-14.23.5.2807-mdk\build.gradle' line: 24

* What went wrong:
A problem occurred evaluating root project 'forge-1.12.2-14.23.5.2807-mdk'.
> No such version exists!

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 4.962 secs
 

Here's it with the --stacktrace

Spoiler

FAILURE: Build failed with an exception.

* Where:
Build file 'F:\Libraries\Documents\Eclipse\Workspace\forge-1.12.2-14.23.5.2807-mdk\build.gradle' line: 24

* What went wrong:
A problem occurred evaluating root project 'forge-1.12.2-14.23.5.2807-mdk'.
> No such version exists!

* Try:
Run with --info or --debug option to get more log output.

* Exception is:
org.gradle.api.GradleScriptException: A problem occurred evaluating root project 'forge-1.12.2-14.23.5.2807-mdk'.
    at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:93)
    at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl$2.run(DefaultScriptPluginFactory.java:177)
    at org.gradle.configuration.ProjectScriptTarget.addConfiguration(ProjectScriptTarget.java:77)
    at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:182)
    at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:38)
    at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:25)
    at org.gradle.configuration.project.ConfigureActionsProjectEvaluator.evaluate(ConfigureActionsProjectEvaluator.java:34)
    at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:55)
    at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:540)
    at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:93)
    at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:42)
    at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:35)
    at org.gradle.initialization.DefaultGradleLauncher$2.run(DefaultGradleLauncher.java:124)
    at org.gradle.internal.Factories$1.create(Factories.java:22)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:53)
    at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:121)
    at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32)
    at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:98)
    at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:92)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63)
    at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:92)
    at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:83)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:99)
    at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
    at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:48)
    at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30)
    at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:81)
    at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:46)
    at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:52)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
    at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
    at org.gradle.util.Swapper.swap(Swapper.java:38)
    at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:40)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)
    at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)
    at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
    at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:237)
    at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
    at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
Caused by: net.minecraftforge.gradle.util.GradleConfigurationException: No such version exists!
    at net.minecraftforge.gradle.user.patcherUser.forge.ForgeExtension.checkAndSetVersion(ForgeExtension.java:204)
    at net.minecraftforge.gradle.user.patcherUser.forge.ForgeExtension.setVersion(ForgeExtension.java:83)
    at net.minecraftforge.gradle.user.patcherUser.forge.ForgeExtension_Decorated.setVersion(Unknown Source)
    at org.gradle.internal.metaobject.BeanDynamicObject$MetaClassAdapter.setProperty(BeanDynamicObject.java:297)
    at org.gradle.internal.metaobject.BeanDynamicObject.setProperty(BeanDynamicObject.java:154)
    at org.gradle.internal.metaobject.CompositeDynamicObject.setProperty(CompositeDynamicObject.java:65)
    at org.gradle.internal.metaobject.AbstractDynamicObject.setProperty(AbstractDynamicObject.java:75)
    at net.minecraftforge.gradle.user.patcherUser.forge.ForgeExtension_Decorated.setProperty(Unknown Source)
    at build_6it2lxods605unt0l4m77e8ot$_run_closure2.doCall(F:\Libraries\Documents\Eclipse\Workspace\forge-1.12.2-14.23.5.2807-mdk\build.gradle:24)
    at org.gradle.api.internal.ClosureBackedAction.execute(ClosureBackedAction.java:67)
    at org.gradle.api.internal.plugins.ExtensionsStorage$ExtensionHolder.configure(ExtensionsStorage.java:145)
    at org.gradle.api.internal.plugins.ExtensionsStorage.configureExtension(ExtensionsStorage.java:69)
    at org.gradle.api.internal.plugins.DefaultConvention$ExtensionsDynamicObject.invokeMethod(DefaultConvention.java:215)
    at org.gradle.internal.metaobject.CompositeDynamicObject.invokeMethod(CompositeDynamicObject.java:96)
    at org.gradle.internal.metaobject.MixInClosurePropertiesAsMethodsDynamicObject.invokeMethod(MixInClosurePropertiesAsMethodsDynamicObject.java:30)
    at org.gradle.internal.metaobject.AbstractDynamicObject.invokeMethod(AbstractDynamicObject.java:163)
    at org.gradle.groovy.scripts.BasicScript.methodMissing(BasicScript.java:79)
    at build_6it2lxods605unt0l4m77e8ot.run(F:\Libraries\Documents\Eclipse\Workspace\forge-1.12.2-14.23.5.2807-mdk\build.gradle:23)
    at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:91)
    ... 58 more

BUILD FAILED

Total time: 5.46 secs

 

I've tried:

• Checking my JDK version, I'm running JDK 8 201, 64bit
• Checking my PATH, JAVA_HOME, and CLASSPATH System Environment Variables, those are all setup correctly, going to /bin, root folder and /bin respectively, all to the same jdk folder. There's no other java versions on any of the paths.
• Redownloading Forge, unpacking files again, new folder, four different versions of forge
• Changing gradle.properties so it uses 3gb of RAM
• Clearing my .gradle cache, and clearing the .gradle folder period
• Checking around here and trying any and all solutions I saw proposed

 

I'm not sure what else to try, or what I'm doing wrong. I'm not familiar with modding, so forgive me for my incompetence, but I need some help.

 

Below is my build.gradle, it's saying it's failing at line 24, which is the version = "1.12.2-14.23.5.2807" line right under minecraft.

 

Spoiler

buildscript {
    repositories {
        jcenter()
        maven { url = "https://files.minecraftforge.net/maven" }
    }
    dependencies {
        classpath 'net.minecraftforge.gradle:ForgeGradle:2.3-SNAPSHOT'
    }
}
apply plugin: 'net.minecraftforge.gradle.forge'
//Only edit below this line, the above code adds and enables the necessary things for Forge to be setup.

version = "1.0"
group = "com.yourname.modid" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
archivesBaseName = "modid"

sourceCompatibility = targetCompatibility = '1.8' // Need this here so eclipse task generates correctly.
compileJava {
    sourceCompatibility = targetCompatibility = '1.8'
}

minecraft {
    version = "1.12.2-14.23.5.2807"
    runDir = "run"
    
    // the mappings can be changed at any time, and must be in the following format.
    // snapshot_YYYYMMDD   snapshot are built nightly.
    // stable_#            stables are built at the discretion of the MCP team.
    // Use non-default mappings at your own risk. they may not always work.
    // simply re-run your setup task after changing the mappings to update your workspace.
    mappings = "snapshot_20171003"
    // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
}

dependencies {
    // you may put jars on which you depend on in ./libs
    // or you may define them like so..
    //compile "some.group:artifact:version:classifier"
    //compile "some.group:artifact:version"
      
    // real examples
    //compile 'com.mod-buildcraft:buildcraft:6.0.8:dev'  // adds buildcraft to the dev env
    //compile 'com.googlecode.efficient-java-matrix-library:ejml:0.24' // adds ejml to the dev env

    // the 'provided' configuration is for optional dependencies that exist at compile-time but might not at runtime.
    //provided 'com.mod-buildcraft:buildcraft:6.0.8:dev'

    // the deobf configurations:  'deobfCompile' and 'deobfProvided' are the same as the normal compile and provided,
    // except that these dependencies get remapped to your current MCP mappings
    //deobfCompile 'com.mod-buildcraft:buildcraft:6.0.8:dev'
    //deobfProvided 'com.mod-buildcraft:buildcraft:6.0.8:dev'

    // for more info...
    // http://www.gradle.org/docs/current/userguide/artifact_dependencies_tutorial.html
    // http://www.gradle.org/docs/current/userguide/dependency_management.html

}

processResources {
    // this will ensure that this task is redone when the versions change.
    inputs.property "version", project.version
    inputs.property "mcversion", project.minecraft.version

    // replace stuff in mcmod.info, nothing else
    from(sourceSets.main.resources.srcDirs) {
        include 'mcmod.info'
                
        // replace version and mcversion
        expand 'version':project.version, 'mcversion':project.minecraft.version
    }
        
    // copy everything else except the mcmod.info
    from(sourceSets.main.resources.srcDirs) {
        exclude 'mcmod.info'
    }
}

 

Any help would be massively appreciated!