$ gradlew setupDecompWorkspace
Download https://plugins.gradle.org/m2/gradle/plugin/net/minecraftforge/gradle/ForgeGradle/2.0.1/ForgeGradle-2.0.1.pom
Download https://plugins.gradle.org/m2/gradle/plugin/net/minecraftforge/gradle/ForgeGradle/2.0.1/ForgeGradle-2.0.1.jar
****************************
 Powered By MCP:
 http://modcoderpack.com/
 Searge, ProfMobius, Fesh0r,
 R4wk, ZeuX, IngisKahn, bspkrs
 MCP Data version : 9.10
****************************
:deobfCompileDummyTask
:deobfProvidedDummyTask
:getVersionJson
:extractUserdev
:extractMcpData
Download http://files.minecraftforge.net/maven/de/oceanlabs/mcp/mcp/1.8/mcp-1.8-srg.zip
:extractMcpMappings
:genSrgs
:downloadClient SKIPPED
:downloadServer SKIPPED
:splitServerJar
:mergeJars
:deobfMcSRG
Applying SpecialSource...
Applying Exceptor...
:getFernFlower SKIPPED
:decompileMc
:fixMcSources
:applySourcePatches
:remapMcSources
:recompileMc
Download https://libraries.minecraft.net/com/mojang/authlib/1.5.21/authlib-1.5.21.pom
Download https://libraries.minecraft.net/com/mojang/authlib/1.5.21/authlib-1.5.21.jar
[ant:javac] warning: [options] bootstrap class path not set in conjunction with -source 1.6
[ant:javac] Note: Some input files use or override a deprecated API.
[ant:javac] Note: Recompile with -Xlint:deprecation for details.
[ant:javac] Note: Some input files use unchecked or unsafe operations.
[ant:javac] Note: Recompile with -Xlint:unchecked for details.
[ant:javac] 1 warning
:extractNatives
:getAssetIndex UP-TO-DATE
:getAssets
Current status: 352/734   47%
Current status: 581/734   79%
:makeStart
[ant:javac] warning: [options] bootstrap class path not set in conjunction with -source 1.6
[ant:javac] C:\Users\Gerald\Documents\GitHub\Rollercoaster2\build\tmp\makeStart\extracted\net\minecraftforge\gradle\tweakers\CoremodTweaker.java:35: error: cannot find symbol
[ant:javac]             Field coreModList = GradleStartCommon.getFmlClass("fml.relauncher.CoreModManager", classLoader).getDeclaredField("loadPlugins");
[ant:javac]                                                  ^
[ant:javac]   symbol:   method getFmlClass(String,LaunchClassLoader)
[ant:javac]   location: class GradleStartCommon
[ant:javac] C:\Users\Gerald\Documents\GitHub\Rollercoaster2\build\tmp\makeStart\extracted\net\minecraftforge\gradle\tweakers\CoremodTweaker.java:39: error: cannot find symbol
[ant:javac]             Class<ITweaker> clazz = (Class<ITweaker>) GradleStartCommon.getFmlClass("fml.relauncher.CoreModManager$FMLPluginWrapper", classLoader);
[ant:javac]                                                                        ^
[ant:javac]   symbol:   method getFmlClass(String,LaunchClassLoader)
[ant:javac]   location: class GradleStartCommon
[ant:javac] C:\Users\Gerald\Documents\GitHub\Rollercoaster2\build\tmp\makeStart\extracted\net\minecraftforge\gradle\tweakers\CoremodTweaker.java:61: error: cannot find symbol
[ant:javac]                     File newFile = GradleStartCommon.coreMap.get(coreMod.getClass().getCanonicalName());
[ant:javac]                                                     ^
[ant:javac]   symbol:   variable coreMap
[ant:javac]   location: class GradleStartCommon
[ant:javac] C:\Users\Gerald\Documents\GitHub\Rollercoaster2\build\tmp\makeStart\extracted\net\minecraftforge\gradle\tweakers\CoremodTweaker.java:92: error: cannot find symbol
[ant:javac]             Field f = GradleStartCommon.getFmlClass(COREMOD_CLASS, classLoader).getDeclaredField(TWEAKER_SORT_FIELD);
[ant:javac]                                        ^
[ant:javac]   symbol:   method getFmlClass(String,LaunchClassLoader)
[ant:javac]   location: class GradleStartCommon
[ant:javac] 4 errors
[ant:javac] 1 warning
:makeStart FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':makeStart'.
> Compile failed; see the compiler error output for details.

* 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: 6 mins 5.185 secs