compile error

Executing Gradle task: build
Build info: MCreator 2020.5.47520, fabric-1.16.3, 64-bit, 16274 MB, Windows 10, JVM 1.8.0_265, JAVA_HOME: F:\Program Files\Pylo\MCreator\jdk
> Configure project :
Fabric Loom: 0.4.33 Build(jenkins #33)
:setting up loom dependencies
:setting up mappings (yarn 1.16.3+build.1)
Configuring compiler arguments for Java
> Task :compileJava FAILED
2020-12-16 18:44:55,408 Daemon worker Thread 4 WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
Note: SpongePowered MIXIN Annotation Processor Version=0.8.2
Note: ObfuscationServiceFabric supports type: "official:intermediary"
Note: ObfuscationServiceFabric supports type: "official:named"
Note: ObfuscationServiceFabric supports type: "intermediary:official"
Note: ObfuscationServiceFabric supports type: "intermediary:named"
Note: ObfuscationServiceFabric supports type: "named:official"
Note: ObfuscationServiceFabric supports type: "named:intermediary"
Note: ObfuscationServiceMCP supports type: "searge"
Note: ObfuscationServiceMCP supports type: "notch"
C:\Users\lmdic\MCreatorWorkspaces\emerald\src\main\java\net\mcreator\emerald\EmeraldMod.java:27: error: cannot find symbol
   public static final Item CustomPickaxe_TOOL = Registry.register(Registry.ITEM, id("custom_pickaxe"), CustomPickaxeTool.INSTANCE);
                                                                                                        ^
  symbol:   variable CustomPickaxeTool
  location: class EmeraldMod
1 error
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Compilation 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 1s
1 actionable task: 1 executed
BUILD FAILED
Task completed in 2472 milliseconds