Gradle not working

Status
Works as designed
Issue description

The Start Minecraft Client Test Environment option is not functioning. I have no idea why, so I'll paste the report here.

 

Executing gradle command: clean runClient
Build info: MCreator 1.8.0, 64-bit, 8016 MB, Windows 10, JVM 1.8.0_172
C:\Pylo\MCreator180\forge>gradlew -Dorg.gradle.daemon=false -Dorg.gradle.parallel=false -Dorg.gradle.jvmargs="-Xms625m -Xmx2048m" clean runClient 
This mapping 'snapshot_20171003' was designed for MC 1.12! Use at your own peril.
#################################################
         ForgeGradle 2.3-SNAPSHOT-ee3e3df        
  https://github.com/MinecraftForge/ForgeGradle  
#################################################
                 Powered by MCP                  
             http://modcoderpack.com             
     by: Searge, ProfMobius, R4wk, ZeuX          
     Fesh0r, IngisKahn, bspkrs, LexManos         
#################################################
:clean
:deobfCompileDummyTask
:deobfProvidedDummyTask
:getVersionJson
:extractUserdev
:downloadClient SKIPPED
:downloadServer SKIPPED
:splitServerJar SKIPPED
:mergeJars SKIPPED
:applyBinaryPatches SKIPPED
:extractDependencyATs SKIPPED
:extractMcpData SKIPPED
:extractMcpMappings
:genSrgs SKIPPED
:deobfMcMCP SKIPPED
:sourceApiJava
:compileApiJava UP-TO-DATE
:processApiResources UP-TO-DATE
:apiClasses UP-TO-DATE
:sourceMainJava
:compileJava
:processResources
:classes
:jar
:extractNatives SKIPPED
:getAssetIndex UP-TO-DATE
:getAssets
Current status: 1061/1305   81%
:makeStart
:runClient
2018-10-11 14:01:07,366 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
[14:01:07] [main/INFO]: Extra: []
[14:01:07] [main/INFO]: Running with arguments: [--userProperties, {}, --assetsDir, C:/Users/jesse/.mcreator/gradle/caches/minecraft/assets, --assetIndex, 1.12, --accessToken{REDACTED}, --version, 1.12.2, --tweakClass, net.minecraftforge.fml.common.launcher.FMLTweaker, --tweakClass, net.minecraftforge.gradle.tweakers.CoremodTweaker]
[14:01:07] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[14:01:07] [main/INFO]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[14:01:07] [main/INFO]: Loading tweak class name net.minecraftforge.gradle.tweakers.CoremodTweaker
[14:01:07] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[14:01:07] [main/INFO]: Forge Mod Loader version 14.23.4.2705 for Minecraft 1.12.2 loading
[14:01:07] [main/INFO]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_172, running on Windows 10:amd64:10.0, installed at C:\Pylo\MCreator180\jdk\jre
[14:01:07] [main/ERROR]: Apache Maven library folder was not in the format expected. Using default libraries directory.
[14:01:07] [main/ERROR]: Full: C:\Users\jesse\.mcreator\gradle\caches\modules-2\files-2.1\org.apache.maven\maven-artifact\3.5.3\7dc72b6d6d8a6dced3d294ed54c2cc3515ade9f4\maven-artifact-3.5.3.jar
[14:01:07] [main/ERROR]: Trimmed: c:/users/jesse/.mcreator/gradle/caches/modules-2/files-2.1/org.apache.maven/maven-artifact/3.5.3/
[14:01:07] [main/INFO]: Managed to load a deobfuscated Minecraft name- we are in a deobfuscated environment. Skipping runtime deobfuscation
[14:01:07] [main/INFO]: Ignoring missing certificate for coremod FMLCorePlugin (net.minecraftforge.fml.relauncher.FMLCorePlugin), we are in deobf and it's a forge core plugin
[14:01:07] [main/INFO]: Ignoring missing certificate for coremod FMLForgePlugin (net.minecraftforge.classloading.FMLForgePlugin), we are in deobf and it's a forge core plugin
[14:01:07] [main/INFO]: Searching C:\Pylo\MCreator180\forge\run\.\mods for mods
[14:01:07] [main/INFO]: Calling tweak class net.minecraftforge.gradle.tweakers.CoremodTweaker
[14:01:07] [main/INFO]: Injecting location in coremod net.minecraftforge.fml.relauncher.FMLCorePlugin
[14:01:07] [main/INFO]: Injecting location in coremod net.minecraftforge.classloading.FMLForgePlugin
[14:01:07] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[14:01:07] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[14:01:07] [main/INFO]: Loading tweak class name net.minecraftforge.gradle.tweakers.AccessTransformerTweaker
[14:01:07] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[14:01:07] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[14:01:07] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
2018-10-11 14:01:08,209 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
2018-10-11 14:01:08,466 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
[14:01:09] [main/ERROR]: FML appears to be missing any signature data. This is not a good thing
[14:01:09] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[14:01:09] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[14:01:09] [main/INFO]: Calling tweak class net.minecraftforge.gradle.tweakers.AccessTransformerTweaker
[14:01:09] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.TerminalTweaker
[14:01:09] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.TerminalTweaker
[14:01:09] [main/INFO]: Launching wrapped minecraft {net.minecraft.client.main.Main}
[14:01:10] [main/INFO]: Setting user: Player13
[14:01:14] [main/INFO]: LWJGL Version: 2.9.4
[14:01:14] [main/ERROR]: Couldn't set pixel format
org.lwjgl.LWJGLException: Pixel format not accelerated
   at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
   at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
   at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:247) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
   at org.lwjgl.opengl.Display.createWindow(Display.java:306) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
   at org.lwjgl.opengl.Display.create(Display.java:848) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
   at org.lwjgl.opengl.Display.create(Display.java:757) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
   at net.minecraft.client.Minecraft.createDisplay(Minecraft.java:624) [Minecraft.class:?]
   at net.minecraft.client.Minecraft.init(Minecraft.java:457) [Minecraft.class:?]
   at net.minecraft.client.Minecraft.run(Minecraft.java:377) [Minecraft.class:?]
   at net.minecraft.client.main.Main.main(SourceFile:123) [Main.class:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_172]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_172]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_172]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_172]
   at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
   at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_172]
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_172]
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_172]
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_172]
   at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
   at GradleStart.main(GradleStart.java:25) [start/:?]
[14:01:15] [main/INFO]: [net.minecraft.init.Bootstrap:printToSYSOUT:553 ---- Minecraft Crash Report ----
// Don't do that.
Time: 10/11/18 2:01 PM
Description: Initializing game
org.lwjgl.LWJGLException: Pixel format not accelerated
   at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
   at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
   at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:247)
   at org.lwjgl.opengl.Display.createWindow(Display.java:306)
   at org.lwjgl.opengl.Display.create(Display.java:848)
   at org.lwjgl.opengl.Display.create(Display.java:757)
   at org.lwjgl.opengl.Display.create(Display.java:739)
   at net.minecraft.client.Minecraft.createDisplay(Minecraft.java:644)
   at net.minecraft.client.Minecraft.init(Minecraft.java:457)
   at net.minecraft.client.Minecraft.run(Minecraft.java:377)
   at net.minecraft.client.main.Main.main(SourceFile:123)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
   at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
   at GradleStart.main(GradleStart.java:25)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Client thread
Stacktrace:
   at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
   at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
   at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:247)
   at org.lwjgl.opengl.Display.createWindow(Display.java:306)
   at org.lwjgl.opengl.Display.create(Display.java:848)
   at org.lwjgl.opengl.Display.create(Display.java:757)
   at org.lwjgl.opengl.Display.create(Display.java:739)
   at net.minecraft.client.Minecraft.createDisplay(Minecraft.java:644)
   at net.minecraft.client.Minecraft.init(Minecraft.java:457)
-- Initialization --
Details:
Stacktrace:
   at net.minecraft.client.Minecraft.run(Minecraft.java:377)
   at net.minecraft.client.main.Main.main(SourceFile:123)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
   at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
   at GradleStart.main(GradleStart.java:25)
-- System Details --
Details:
   Minecraft Version: 1.12.2
   Operating System: Windows 10 (amd64) version 10.0
   Java Version: 1.8.0_172, Oracle Corporation
   Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
   Memory: 324525352 bytes (309 MB) / 542113792 bytes (517 MB) up to 1870135296 bytes (1783 MB)
   JVM Flags: 0 total; 
   IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
   FML: 
   Loaded coremods (and transformers): 
   Launched Version: 1.12.2
   LWJGL: 2.9.4
   OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
   GL Caps: 
   Using VBOs: Yes
   Is Modded: Definitely; Client brand changed to 'fml,forge'
   Type: Client (map_client.txt)
   Resource Packs: 
   Current Language: ~~ERROR~~ NullPointerException: null
   Profiler Position: N/A (disabled)
   CPU: 
[14:01:15] [main/INFO]: [net.minecraft.init.Bootstrap:printToSYSOUT:553 #@!@# Game crashed! Crash report saved to: #@!@# C:\Pylo\MCreator180\forge\run\.\crash-reports\crash-2018-10-11_14.01.15-client.txt
:runClient FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':runClient'.
> Process 'command 'C:\Pylo\MCreator180\jdk\bin\java.exe'' finished with non-zero exit value -1
* 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: 44.776 secs
C:\Pylo\MCreator180\forge>
Task completed with return code 0 in 45314 milliseconds

Issue comments

You might want to try to reinstall MCreator in such case, I unfortunately don't have other ideas, as this error indicated that something is wrong with the GPU or the driver MCreator is trying to use to run Minecraft.

I tried reinstalling it and it didn't work.

I did filter through the console code and found a few error messages, could these have anything to do with it?

[13:48:49] [main/ERROR] [FML]: FML appears to be missing any signature data. This is not a good thing

 

[13:48:48] [main/ERROR] [FML]: Apache Maven library folder was not in the format expected. Using default libraries directory.

[13:48:48] [main/ERROR] [FML]: Full: C:\Users\jesse\.mcreator\gradle\caches\modules-2\files-2.1\org.apache.maven\maven-artifact\3.5.3\7dc72b6d6d8a6dced3d294ed54c2cc3515ade9f4\maven-artifact-3.5.3.jar

[13:48:48] [main/ERROR] [FML]: Trimmed: c:/users/jesse/.mcreator/gradle/caches/modules-2/files-2.1/org.apache.maven/maven-artifact/3.5.3/

No, these are not related to this issue. Do you still get this part of the error?

[14:01:14] [main/ERROR]: Couldn't set pixel format
org.lwjgl.LWJGLException: Pixel format not accelerated

This is the main issue in your case, but the fix should normally be related to the settings of GPU.