Topic category: Troubleshooting, bugs, and solutions
Mcreator 2024.4 generator 1.20.1 forge
I cant run client on 1.20.1 forge but it launch perfect on 1.21.1 neoforge
Crash report:
Executing Gradle task: runClient
Build info: MCreator 2024.4.52410, forge-1.20.1, 64-bit, 16322 MB, Windows 10, JVM 21.0.4, JAVA_HOME: C:\Program Files\Pylo\MCreator\jdk, started on: 2025-11-12-17:05:34
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'lasthope'.
> Could not create task ':runClient'.
> Failed to calculate the value of task ':compileJava' property 'javaCompiler'.
> Cannot find a Java installation on your machine matching this tasks requirements: {languageVersion=17, vendor=any, implementation=vendor-specific} for WINDOWS on x86_64.
> No matching toolchain could be found in the locally installed toolchains or the configured toolchain download repositories. Some toolchain resolvers had provisioning failures: foojay (Unable to download toolchain matching the requirements ({languageVersion=17, vendor=any, implementation=vendor-specific}) from 'https://api.foojay.io/disco/v3.0/ids/52fa104f4f641439587f75dd68b31bc2/r…', due to: Could not copy file 'C:\Users\User\.mcreator\gradle\jdks\OpenJDK17U-jdk_x64_windows_hotspot_17\jdk-17.0.17+10\jmods\java.desktop.jmod' to 'C:\Users\User\.mcreator\gradle\jdks\eclipse_adoptium-17-amd64-windows\jdk-17.0.17+10\jmods\java.desktop.jmod'.).
* Try:
> Learn more about toolchain auto-detection at https://docs.gradle.org/8.8/userguide/toolchains.html#sec:auto_detection.
> Learn more about toolchain repositories at https://docs.gradle.org/8.8/userguide/toolchains.html#sub:download_repo….
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.
BUILD FAILED in 6s
BUILD FAILED
Task completed in 6 seconds
Help me please
I recommend updating your MCreator
I hop on 2025.3 and installed forge 1.20.1 forge generator but it crashed again but 1.21.8 neoforge work
Crash report:
Executing Gradle task: runClient
Build info: MCreator 2025.3.45720, forge-1.20.1, 64-bit, 16322 MB, Windows 10, JVM 21.0.8, JAVA_HOME: F:\Program Files\Pylo\MCreator\jdk, started on: 2025-11-12-20:41:58
Calculating task graph as no cached configuration is available for tasks: runClient
> Task :writeClientLegacyClasspath UP-TO-DATE
> Task :createMinecraftArtifacts UP-TO-DATE
> Task :downloadAssets UP-TO-DATE
> Task :processResources
> Task :prepareClientRun
> Task :compileJava FAILED
Error: Could not find or load main class worker.org.gradle.process.internal.worker.GradleWorkerMain
Caused by: java.lang.ClassNotFoundException: worker.org.gradle.process.internal.worker.GradleWorkerMain
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Failed to run Gradle Worker Daemon
> Process 'Gradle Worker Daemon 1' 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.
> Run with --scan to generate a Build Scan (powered by Develocity).
> Get more help at https://help.gradle.org.
BUILD FAILED in 4s
6 actionable tasks: 3 executed, 3 up-to-date
Configuration cache entry stored.
BUILD FAILED
Task completed in 4 seconds