Can't set up a workspace

Executing Gradle task: setupDecompWorkspace --refresh-dependencies

Build info: MCreator 2020.2.14217, 1.12.2, 64-bit, 8192 MB, Mac OS X, JVM 1.8.0_232, JAVA_HOME: /Volumes/HELIX-DBZUQ/My mod/MCreator.app/Contents/MacOS/jdk/Contents/Home/jre

This mapping 'snapshot_20171003' was designed for MC 1.12! Use at your own peril.

:deobfCompileDummyTask

:deobfProvidedDummyTask

:getVersionJson

:extractUserdev UP-TO-DATE

:extractDependencyATs SKIPPED

:extractMcpData SKIPPED

:extractMcpMappings SKIPPED

:genSrgs SKIPPED

:downloadClient SKIPPED

:downloadServer SKIPPED

:splitServerJar SKIPPED

:mergeJars SKIPPED

:deobfMcSRG SKIPPED

:decompileMc SKIPPED

:fixMcSources SKIPPED

:applySourcePatches SKIPPED

:remapMcSources SKIPPED

:recompileMc FAILED

FAILURE: Build failed with an exception.

* What went wrong:

Execution failed for task ':recompileMc'.

> 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. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 45s

5 actionable tasks: 4 executed, 1 up-to-date

BUILD FAILED

Task completed in 45872 milliseconds