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[1.9.4] setupDecompWorkspace fails with "NullPointerException(no error message)"


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First off, I just want to apologize if I posted this in the wrong section.. it does say "No support requests". but the forum linked said "No modder support".. so I am slightly confused as to where to post this. But anyhow, here's my issue:


So I am trying to update my mod from 1.9 to 1.9.4 and I am running into some issues when trying to execute setupDecompWorkspace. Gradle spits out an incredibly vague error and doesn't setup my workspace.. any help?


Log of gradle when running gradlew setupDecompWorkspace --stacktrace:





and here is my build.gradle:



// For those who want the bleeding edge

buildscript {

    repositories {


        maven {

            name = "forge"

            url = "http://files.minecraftforge.net/maven"



    dependencies {

        classpath 'net.minecraftforge.gradle:ForgeGradle:2.1-SNAPSHOT'



apply plugin: 'net.minecraftforge.gradle.forge'



// for people who want stable - not yet functional for MC 1.8.8 - we require the forgegradle 2.1 snapshot

plugins {

    id "net.minecraftforge.gradle.forge" version "2.0.2"



version = "1.0"

group= "com.alvinb.alvinsextrasmod" // http://maven.apache.org/guides/mini/guide-naming-conventions.html

archivesBaseName = "AEM_1.9.4"


sourceCompatibility = 1.7

targetCompatibility = 1.7


minecraft {

    version = "1.9.4-"

    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 allways work.

    // simply re-run your setup task after changing the mappings to update your workspace.

    mappings = "snapshot_20160518"

    // 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






    // 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, thats not the mcmod.info

    from(sourceSets.main.resources.srcDirs) {

        exclude 'mcmod.info'





jar {

    manifest {

        attributes 'FMLCorePlugin': 'com.alvinb.alvinsextrasmod.asm.AEMJEIOverridePlugin'

        attributes 'FMLCorePluginContainsFMLMod': 'true'





and these are the files I have in my mod directory:


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