Setup failed, please help

Status
Fixed
Issue description

it says setup failed, it says i ran it in offline mode but i double check each time,idk what to do.

Issue comments

     
Executing gradle command: cleanCache clean setupDecompWorkspace --refresh-dependencies
Build info: MCreator 1.8.1, 64-bit, 6058 MB, Windows 10 - cmd, JVM 1.8.0_172, JAVA_HOME: C:\Pylo\MCreator181\.\jdk
C:\Pylo\MCreator181\forge>gradlew -Dorg.gradle.daemon=false -Dorg.gradle.parallel=false -Dorg.gradle.jvmargs="-Xms625m -Xmx2048m" cleanCache clean setupDecompWorkspace --refresh-dependencies 
This mapping 'snapshot_20171003' was designed for MC 1.12! Use at your own peril.
#################################################
         ForgeGradle 2.3-SNAPSHOT-3996470        
  https://github.com/MinecraftForge/ForgeGradle  
#################################################
                 Powered by MCP                  
             http://modcoderpack.com             
     by: Searge, ProfMobius, R4wk, ZeuX          
     Fesh0r, IngisKahn, bspkrs, LexManos         
#################################################
:cleanCache
:clean UP-TO-DATE
:deobfCompileDummyTask
:deobfProvidedDummyTask
:getVersionJson
:extractUserdev
:extractDependencyATs SKIPPED
:extractMcpData
:extractMcpMappings
:genSrgs
:downloadClient
:downloadServer
:splitServerJar
:mergeJars
:deobfMcSRG
Applying SpecialSource...
Applying Exceptor...
:decompileMc
Download https://repo1.maven.org/maven2/org/jline/jline/3.5.1/jline-3.5.1.pom
Download https://repo1.maven.org/maven2/org/jline/jline-parent/3.5.1/jline-paren…
Download https://repo1.maven.org/maven2/org/jline/jline/3.5.1/jline-3.5.1.jar
:fixMcSources
:applySourcePatches
:remapMcSources
:recompileMc
:extractNatives
:getAssetIndex UP-TO-DATE
launchermeta.mojang.com
:getAssets FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':getAssets'.
> java.io.FileNotFoundException: C:\Users\Carrye McGrath\.mcreator\gradle\caches\minecraft\assets\indexes\1.12.json (The system cannot find the file specified)
* 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: 16 mins 42.683 secs
C:\Pylo\MCreator181\forge>
Task completed with return code 0 in 1004632 milliseconds

Go to folder C:\Users\Carrye McGrath\.mcreator\, delete folder gradle in it and install MCreator again. Make sure that MCreator has unobstructed access to the internet too.

Make sure that there are no firewalls or antiviruses blocking MCreator. This is the only thing it could be causing this if my first tip did not work.