C:\Users\payne\Downloads\WonderfulEnchantmentsMod-1.16.4\WonderfulEnchantmentsMod-1.16.4>gradlew build
To honour the JVM settings for this build a single-use Daemon process will be forked. See The Gradle Daemon.
Daemon will be stopped at the end of the build

Configure project :
Java: 14.0.1 JVM: 14.0.1+7(Oracle Corporation) Arch: amd64
WARNING: This project is configured to use the official obfuscation mappings provided by Mojang. These mapping fall under their associated license, you should be fully aware of this license. For the latest license text, refer below, or the reference copy here: MCPConfig/Mojang.md at master · MinecraftForge/MCPConfig · GitHub, You can hide this warning by running the hideOfficialWarningUntilChanged task
WARNING: (c) 2020 Microsoft Corporation. These mappings are provided “as-is” and you bear the risk of using them. You may copy and use the mappings for development purposes, but you may not redistribute the mappings complete and unmodified. Microsoft makes no warranties, express or implied, with respect to the mappings provided here. Use and modification of this document or the source code (in any form) of Minecraft: Java Edition is governed by the Minecraft End User License Agreement available at Mojang Studios Account.
java.lang.IllegalStateException: Could not find tools.jar. Please check that C:\Program Files (x86)\Java\jre1.8.0_311 contains a valid JDK installation.
at org.gradle.api.internal.tasks.compile.JdkTools.(JdkTools.java:77)
at org.gradle.api.internal.tasks.compile.JavaHomeBasedJavaCompilerFactory.createJdkTools(JavaHomeBasedJavaCompilerFactory.java:48)
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(Unknown Source)
at org.gradle.api.internal.tasks.compile.JavaHomeBasedJavaCompilerFactory.create(JavaHomeBasedJavaCompilerFactory.java:43)
at org.gradle.api.internal.tasks.compile.JavaHomeBasedJavaCompilerFactory.create(JavaHomeBasedJavaCompilerFactory.java:29)
at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.createCompileTask(JdkJavaCompiler.java:63)
at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:53)
at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:39)
at org.gradle.api.internal.tasks.compile.daemon.AbstractDaemonCompiler$CompilerWorkAction.execute(AbstractDaemonCompiler.java:135)
at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:63)
at org.gradle.workers.internal.AbstractClassLoaderWorker$1.create(AbstractClassLoaderWorker.java:49)
at org.gradle.workers.internal.AbstractClassLoaderWorker$1.create(AbstractClassLoaderWorker.java:43)
at org.gradle.internal.classloader.ClassLoaderUtils.executeInClassloader(ClassLoaderUtils.java:97)
at org.gradle.workers.internal.AbstractClassLoaderWorker.executeInClassLoader(AbstractClassLoaderWorker.java:43)
at org.gradle.workers.internal.FlatClassLoaderWorker.run(FlatClassLoaderWorker.java:32)
at org.gradle.workers.internal.FlatClassLoaderWorker.run(FlatClassLoaderWorker.java:22)
at org.gradle.workers.internal.WorkerDaemonServer.run(WorkerDaemonServer.java:85)
at org.gradle.workers.internal.WorkerDaemonServer.run(WorkerDaemonServer.java:55)
at org.gradle.process.internal.worker.request.WorkerAction$1.call(WorkerAction.java:138)
at org.gradle.process.internal.worker.child.WorkerLogEventListener.withWorkerLoggingProtocol(WorkerLogEventListener.java:41)
at org.gradle.process.internal.worker.request.WorkerAction.run(WorkerAction.java:135)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:182)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:164)
at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:414)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56)
at java.lang.Thread.run(Unknown Source)
java.lang.IllegalStateException: Could not find tools.jar. Please check that C:\Program Files (x86)\Java\jre1.8.0_311 contains a valid JDK installation.
at org.gradle.api.internal.tasks.compile.JdkTools.(JdkTools.java:77)
at org.gradle.api.internal.tasks.compile.JavaHomeBasedJavaCompilerFactory.createJdkTools(JavaHomeBasedJavaCompilerFactory.java:48)
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(Unknown Source)
at org.gradle.api.internal.tasks.compile.JavaHomeBasedJavaCompilerFactory.create(JavaHomeBasedJavaCompilerFactory.java:43)
at org.gradle.api.internal.tasks.compile.JavaHomeBasedJavaCompilerFactory.create(JavaHomeBasedJavaCompilerFactory.java:29)
at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.createCompileTask(JdkJavaCompiler.java:63)
at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:53)
at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:39)
at org.gradle.api.internal.tasks.compile.daemon.AbstractDaemonCompiler$CompilerWorkAction.execute(AbstractDaemonCompiler.java:135)
at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:63)
at org.gradle.workers.internal.AbstractClassLoaderWorker$1.create(AbstractClassLoaderWorker.java:49)
at org.gradle.workers.internal.AbstractClassLoaderWorker$1.create(AbstractClassLoaderWorker.java:43)
at org.gradle.internal.classloader.ClassLoaderUtils.executeInClassloader(ClassLoaderUtils.java:97)
at org.gradle.workers.internal.AbstractClassLoaderWorker.executeInClassLoader(AbstractClassLoaderWorker.java:43)
at org.gradle.workers.internal.FlatClassLoaderWorker.run(FlatClassLoaderWorker.java:32)
at org.gradle.workers.internal.FlatClassLoaderWorker.run(FlatClassLoaderWorker.java:22)
at org.gradle.workers.internal.WorkerDaemonServer.run(WorkerDaemonServer.java:85)
at org.gradle.workers.internal.WorkerDaemonServer.run(WorkerDaemonServer.java:55)
at org.gradle.process.internal.worker.request.WorkerAction$1.call(WorkerAction.java:138)
at org.gradle.process.internal.worker.child.WorkerLogEventListener.withWorkerLoggingProtocol(WorkerLogEventListener.java:41)
at org.gradle.process.internal.worker.request.WorkerAction.run(WorkerAction.java:135)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:182)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:164)
at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:414)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56)
at java.lang.Thread.run(Unknown Source)

FAILURE: Build failed with an exception.

What went wrong:
Could not resolve all files for configuration ‘:runtimeClasspathCopy’.

Could not find net.minecraftforge:forge:1.16.5-36.2.20_mapped_official_1.16.5.
Searched in the following locations:
- file:/C:/Users/payne/.gradle/caches/forge_gradle/bundeled_repo/net/minecraftforge/forge/1.16.5-36.2.20_mapped_official_1.16.5/forge-1.16.5-36.2.20_mapped_official_1.16.5.pom
- file:/C:/Users/payne/.gradle/caches/forge_gradle/bundeled_repo/net/minecraftforge/forge/1.16.5-36.2.20_mapped_official_1.16.5/forge-1.16.5-36.2.20_mapped_official_1.16.5.jar
Required by:
project :

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

Deprecated Gradle features were used in this build, making it incompatible with Gradle 8.0.

You can use ‘–warning-mode all’ to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

See Command-Line Interface

BUILD FAILED in 44s

@NyanNyanNyan It seems like you are using a JRE instead of a JDK.

What IDE are you using? IntelliJ, Eclipse, none?

If you're in IntelliJ, press Ctrl+Alt+Shift+S, click "SDKs", click the "+", click "Download JDK". Once it has downloaded, make sure you change it in "Project" > "Project SDK:"