Cannot create dev environment for forge 1.13 and above

[PlanetTeamSpeak]

Whenever I try to import a fresh project of Minecraft version 1.13 or higher, I seem to get multiple strange errors.

First of all when importing the project:

java.lang.IllegalArgumentException: Failed to properly track class blocks around class net.minecraftforge.fluids.capability.CapabilityFluidHandler$DefaultFluidHandlerStorage:62
	at net.minecraftforge.gradle.common.util.McpNames.injectJavadoc(McpNames.java:164)
	at net.minecraftforge.gradle.common.util.McpNames.rename(McpNames.java:101)
	at net.minecraftforge.gradle.userdev.MinecraftUserRepo.findSource(MinecraftUserRepo.java:1026)
	at net.minecraftforge.gradle.userdev.MinecraftUserRepo.findRecomp(MinecraftUserRepo.java:1041)
	at net.minecraftforge.gradle.userdev.MinecraftUserRepo.findRaw(MinecraftUserRepo.java:527)
	at net.minecraftforge.gradle.userdev.MinecraftUserRepo.findFile(MinecraftUserRepo.java:394)
	at net.minecraftforge.gradle.common.util.BaseRepo.getArtifact(BaseRepo.java:81)
	at net.minecraftforge.gradle.common.util.BaseRepo.getArtifact(BaseRepo.java:41)
	at net.minecraftforge.gradle.common.util.BaseRepo$Builder$1.lambda$getArtifact$0(BaseRepo.java:127)
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
	at java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1359)
	at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
	at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:499)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:486)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
	at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464)
	at net.minecraftforge.gradle.common.util.BaseRepo$Builder$1.getArtifact(BaseRepo.java:127)
	at net.minecraftforge.gradle.common.util.BaseRepo$Builder$1.getArtifact(BaseRepo.java:124)
	at com.amadornes.artifactural.base.repository.ArtifactProviderBuilder$Complete.getArtifact(ArtifactProviderBuilder.java:92)
	at com.amadornes.artifactural.base.repository.SimpleRepository.getArtifact(SimpleRepository.java:41)
	at com.amadornes.artifactural.gradle.GradleRepositoryAdapter$GeneratingFileResourceRepository.findArtifact(GradleRepositoryAdapter.java:298)
	at com.amadornes.artifactural.gradle.GradleRepositoryAdapter$GeneratingFileResourceRepository.resource(GradleRepositoryAdapter.java:277)
	at com.amadornes.artifactural.gradle.GradleRepositoryAdapter$GeneratingFileResourceRepository.resource(GradleRepositoryAdapter.java:243)
	at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver.staticResourceExists(DefaultExternalResourceArtifactResolver.java:83)
	at org.gradle.api.internal.artifacts.repositories.resolver.DefaultExternalResourceArtifactResolver.artifactExists(DefaultExternalResourceArtifactResolver.java:71)
	at org.gradle.api.internal.artifacts.repositories.metadata.DefaultArtifactMetadataSource.createMetaDataFromDependencyArtifact(DefaultArtifactMetadataSource.java:67)
	at org.gradle.api.internal.artifacts.repositories.metadata.DefaultArtifactMetadataSource.create(DefaultArtifactMetadataSource.java:56)
	at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver.resolveStaticDependency(ExternalResourceResolver.java:244)
	at org.gradle.api.internal.artifacts.repositories.resolver.MavenResolver.doResolveComponentMetaData(MavenResolver.java:125)
	at org.gradle.api.internal.artifacts.repositories.resolver.ExternalResourceResolver$RemoteRepositoryAccess.resolveComponentMetaData(ExternalResourceResolver.java:445)
	at com.amadornes.artifactural.gradle.GradleRepositoryAdapter$1$1.resolveComponentMetaData(GradleRepositoryAdapter.java:178)
	at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.CachingModuleComponentRepository$ResolveAndCacheRepositoryAccess.resolveComponentMetaData(CachingModuleComponentRepository.java:378)
	at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.LocalModuleComponentRepository$LocalAccess.resolveComponentMetaData(LocalModuleComponentRepository.java:77)
	at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ErrorHandlingModuleComponentRepository$ErrorHandlingModuleComponentRepositoryAccess.resolveComponentMetaData(ErrorHandlingModuleComponentRepository.java:138)
	at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ComponentMetaDataResolveState.process(ComponentMetaDataResolveState.java:67)
	at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ComponentMetaDataResolveState.resolve(ComponentMetaDataResolveState.java:46)
	at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver.findBestMatch(RepositoryChainComponentMetaDataResolver.java:138)
	at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver.findBestMatch(RepositoryChainComponentMetaDataResolver.java:119)
	at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver.resolveModule(RepositoryChainComponentMetaDataResolver.java:92)
	at org.gradle.api.internal.artifacts.ivyservice.ivyresolve.RepositoryChainComponentMetaDataResolver.resolve(RepositoryChainComponentMetaDataResolver.java:63)
	at org.gradle.api.internal.artifacts.ivyservice.resolveengine.ComponentResolversChain$ComponentMetaDataResolverChain.resolve(ComponentResolversChain.java:94)
	at org.gradle.api.internal.artifacts.ivyservice.clientmodule.ClientModuleResolver.resolve(ClientModuleResolver.java:62)
	at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.ComponentState.resolve(ComponentState.java:188)
	at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.ComponentState.getMetadata(ComponentState.java:141)
	at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.EdgeState.calculateTargetConfigurations(EdgeState.java:156)
	at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.EdgeState.attachToTargetConfigurations(EdgeState.java:112)
	at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.DependencyGraphBuilder.attachToTargetRevisionsSerially(DependencyGraphBuilder.java:306)
	at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.DependencyGraphBuilder.resolveEdges(DependencyGraphBuilder.java:193)
	at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.DependencyGraphBuilder.traverseGraph(DependencyGraphBuilder.java:146)
	at org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder.DependencyGraphBuilder.resolve(DependencyGraphBuilder.java:117)
	at org.gradle.api.internal.artifacts.ivyservice.resolveengine.DefaultArtifactDependencyResolver.resolve(DefaultArtifactDependencyResolver.java:119)
	at org.gradle.api.internal.artifacts.ivyservice.DefaultConfigurationResolver.resolveGraph(DefaultConfigurationResolver.java:167)
	at org.gradle.api.internal.artifacts.ivyservice.ShortCircuitEmptyConfigurationResolver.resolveGraph(ShortCircuitEmptyConfigurationResolver.java:82)
	at org.gradle.api.internal.artifacts.ivyservice.ErrorHandlingConfigurationResolver.resolveGraph(ErrorHandlingConfigurationResolver.java:66)
	at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$5.run(DefaultConfiguration.java:534)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:300)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:292)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:174)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.resolveGraphIfRequired(DefaultConfiguration.java:525)
	at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.resolveToStateOrLater(DefaultConfiguration.java:510)
	at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.getResolvedConfiguration(DefaultConfiguration.java:502)
	at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration_Decorated.getResolvedConfiguration(Unknown Source)
	at org.jetbrains.plugins.gradle.tooling.util.resolve.ArtifactQueryResolver.resolve(ArtifactQueryResolver.java:61)
	at org.jetbrains.plugins.gradle.tooling.util.resolve.DependencyResolverImpl.resolveDependencies(DependencyResolverImpl.java:105)
	at org.jetbrains.plugins.gradle.tooling.util.resolve.CompileDependenciesProvider.resolve(CompileDependenciesProvider.java:86)
	at org.jetbrains.plugins.gradle.tooling.util.resolve.DependencyResolverImpl.resolveDependencies(DependencyResolverImpl.java:157)
	at org.jetbrains.plugins.gradle.tooling.util.DependencyResolver$resolveDependencies.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at org.jetbrains.plugins.gradle.tooling.builder.ExternalProjectBuilderImpl$_getSourceSets_closure1.doCall(ExternalProjectBuilderImpl.groovy:427)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
	at groovy.lang.Closure.call(Closure.java:414)
	at groovy.lang.Closure.call(Closure.java:430)
	at org.gradle.api.internal.ClosureBackedAction.execute(ClosureBackedAction.java:71)
	at org.gradle.util.ConfigureUtil.configureTarget(ConfigureUtil.java:155)
	at org.gradle.util.ConfigureUtil.configure(ConfigureUtil.java:106)
	at org.gradle.util.ConfigureUtil$WrappedConfigureAction.execute(ConfigureUtil.java:167)
	at org.gradle.api.internal.DefaultDomainObjectCollection.all(DefaultDomainObjectCollection.java:158)
	at org.gradle.api.internal.DefaultDomainObjectCollection.all(DefaultDomainObjectCollection.java:174)
	at org.gradle.api.DomainObjectCollection$all.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at org.jetbrains.plugins.gradle.tooling.builder.ExternalProjectBuilderImpl.getSourceSets(ExternalProjectBuilderImpl.groovy:228)
	at org.jetbrains.plugins.gradle.tooling.builder.ExternalProjectBuilderImpl.doBuild(ExternalProjectBuilderImpl.groovy:99)
	at org.jetbrains.plugins.gradle.tooling.builder.ExternalProjectBuilderImpl.buildAll(ExternalProjectBuilderImpl.groovy:67)
	at org.jetbrains.plugins.gradle.tooling.internal.ExtraModelBuilder.buildAll(ExtraModelBuilder.java:88)
	at org.gradle.tooling.internal.provider.runner.DefaultBuildController.getModel(DefaultBuildController.java:79)
	at org.gradle.tooling.internal.consumer.connection.InternalBuildActionAdapter$2.getModel(InternalBuildActionAdapter.java:74)
	at org.gradle.tooling.internal.consumer.connection.BuildControllerAdapter.getModel(BuildControllerAdapter.java:62)
	at org.gradle.tooling.internal.consumer.connection.AbstractBuildController.findModel(AbstractBuildController.java:57)
	at org.gradle.tooling.internal.consumer.connection.AbstractBuildController.findModel(AbstractBuildController.java:44)
	at org.gradle.tooling.internal.consumer.connection.AbstractBuildController.findModel(AbstractBuildController.java:32)
	at org.jetbrains.plugins.gradle.model.ProjectImportAction$MyBuildController.findModel(ProjectImportAction.java:498)
	at org.jetbrains.plugins.gradle.model.ProjectImportAction$MyBuildController.findModel(ProjectImportAction.java:519)
	at org.jetbrains.plugins.gradle.model.ClassSetImportModelProvider.populateBuildModels(ClassSetImportModelProvider.java:27)
	at org.jetbrains.plugins.gradle.model.ProjectImportAction.addBuildModels(ProjectImportAction.java:256)
	at org.jetbrains.plugins.gradle.model.ProjectImportAction.execute(ProjectImportAction.java:129)
	at org.jetbrains.plugins.gradle.model.ProjectImportAction.execute(ProjectImportAction.java:55)
	at org.gradle.tooling.internal.consumer.connection.InternalBuildActionAdapter.execute(InternalBuildActionAdapter.java:77)
	at org.gradle.tooling.internal.provider.runner.ClientProvidedPhasedActionRunner.runAction(ClientProvidedPhasedActionRunner.java:109)
	at org.gradle.tooling.internal.provider.runner.ClientProvidedPhasedActionRunner.access$000(ClientProvidedPhasedActionRunner.java:41)
	at org.gradle.tooling.internal.provider.runner.ClientProvidedPhasedActionRunner$1.run(ClientProvidedPhasedActionRunner.java:97)
	at org.gradle.tooling.internal.provider.runner.ClientProvidedPhasedActionRunner$1.buildFinished(ClientProvidedPhasedActionRunner.java:91)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.event.DefaultListenerManager$ListenerDetails.dispatch(DefaultListenerManager.java:370)
	at org.gradle.internal.event.DefaultListenerManager$ListenerDetails.dispatch(DefaultListenerManager.java:352)
	at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:58)
	at org.gradle.internal.event.DefaultListenerManager$EventBroadcast$ListenerDispatch.dispatch(DefaultListenerManager.java:340)
	at org.gradle.internal.event.DefaultListenerManager$EventBroadcast$ListenerDispatch.dispatch(DefaultListenerManager.java:327)
	at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:42)
	at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:230)
	at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:149)
	at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:58)
	at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:324)
	at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:234)
	at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:140)
	at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:37)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy16.buildFinished(Unknown Source)
	at org.gradle.initialization.DefaultGradleLauncher.finishBuild(DefaultGradleLauncher.java:162)
	at org.gradle.initialization.DefaultGradleLauncher.finishBuild(DefaultGradleLauncher.java:128)
	at org.gradle.internal.invocation.GradleBuildController$2.call(GradleBuildController.java:87)
	at org.gradle.internal.invocation.GradleBuildController$2.call(GradleBuildController.java:83)
	at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:152)
	at org.gradle.internal.work.StopShieldingWorkerLeaseService.withLocks(StopShieldingWorkerLeaseService.java:38)
	at org.gradle.internal.invocation.GradleBuildController.doBuild(GradleBuildController.java:96)
	at org.gradle.internal.invocation.GradleBuildController.configure(GradleBuildController.java:83)
	at org.gradle.tooling.internal.provider.runner.ClientProvidedPhasedActionRunner.run(ClientProvidedPhasedActionRunner.java:63)
	at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
	at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
	at org.gradle.tooling.internal.provider.ValidatingBuildActionRunner.run(ValidatingBuildActionRunner.java:32)
	at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$3.run(RunAsBuildOperationBuildActionRunner.java:47)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:300)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:292)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:174)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:43)
	at org.gradle.tooling.internal.provider.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:51)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter$1.transform(InProcessBuildActionExecuter.java:50)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter$1.transform(InProcessBuildActionExecuter.java:46)
	at org.gradle.composite.internal.DefaultRootBuildState.run(DefaultRootBuildState.java:74)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:46)
	at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:32)
	at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:39)
	at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:25)
	at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:80)
	at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:53)
	at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:62)
	at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:34)
	at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:36)
	at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:25)
	at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:43)
	at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:29)
	at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:59)
	at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:31)
	at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:59)
	at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:44)
	at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:46)
	at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:30)
	at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:67)
	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
	at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
	at org.gradle.util.Swapper.swap(Swapper.java:38)
	at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:62)
	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:82)
	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
	at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
	at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:295)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
	at java.lang.Thread.run(Thread.java:748)

The above error is thrown multiple times for different classes.

The second error I get is as follows:

Could not find net.minecraftforge:forge:1.13.2-25.0.219_mapped_snapshot_20180921-1.13.

Possible solution:
 - Declare repository providing the artifact, see the documentation at https://docs.gradle.org/current/userguide/declaring_repositories.html

And the last error is more or less the same as the second but is as follows:

Could not find net.minecraftforge:forge:1.13.2-25.0.219_mapped_snapshot_20180921-1.13.
Searched in the following locations:
  - file:/C:/Users/tygom/.gradle/caches/forge_gradle/bundeled_repo/net/minecraftforge/forge/1.13.2-25.0.219_mapped_snapshot_20180921-1.13/forge-1.13.2-25.0.219_mapped_snapshot_20180921-1.13.pom
  - file:/C:/Users/tygom/.gradle/caches/forge_gradle/bundeled_repo/net/minecraftforge/forge/1.13.2-25.0.219_mapped_snapshot_20180921-1.13/forge-1.13.2-25.0.219_mapped_snapshot_20180921-1.13.jar
  - https://files.minecraftforge.net/maven/net/minecraftforge/forge/1.13.2-25.0.219_mapped_snapshot_20180921-1.13/forge-1.13.2-25.0.219_mapped_snapshot_20180921-1.13.pom
  - https://files.minecraftforge.net/maven/net/minecraftforge/forge/1.13.2-25.0.219_mapped_snapshot_20180921-1.13/forge-1.13.2-25.0.219_mapped_snapshot_20180921-1.13.jar
  - https://libraries.minecraft.net/net/minecraftforge/forge/1.13.2-25.0.219_mapped_snapshot_20180921-1.13/forge-1.13.2-25.0.219_mapped_snapshot_20180921-1.13.jar
  - https://repo.maven.apache.org/maven2/net/minecraftforge/forge/1.13.2-25.0.219_mapped_snapshot_20180921-1.13/forge-1.13.2-25.0.219_mapped_snapshot_20180921-1.13.pom
  - https://repo.maven.apache.org/maven2/net/minecraftforge/forge/1.13.2-25.0.219_mapped_snapshot_20180921-1.13/forge-1.13.2-25.0.219_mapped_snapshot_20180921-1.13.jar

Possible solution:
 - Declare repository providing the artifact, see the documentation at https://docs.gradle.org/current/userguide/declaring_repositories.html

Note that this is a fresh project, I've followed the exact steps in the readme file and haven't yet changed anything in the build.gradle file. Changing the mappings does not resolve anything.