记录一个在开发中遇到的错误。导致这个错误的原因是同时给我的NDK是Windows的，而我用的Mac开发。

Caused by: com.android.builder.errors.EvalIssueException: /Users/liuhai/Documents/projecttest/mpos_terminal/corelib/CMakeLists.txt : C/C++ debug|arm64-v8a : CMake Error in CMakeLists.txt:
  The CMAKE_C_COMPILER:

    /Users/liuhai/Library/Android/sdk/ndk/android-ndk-r16b/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang
  is not a full path to an existing compiler tool.

  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.

    at com.android.builder.errors.EvalIssueReporter.reportError(EvalIssueReporter.kt:102)
    at com.android.builder.errors.EvalIssueReporter.reportError$default(EvalIssueReporter.kt:98)
    at com.android.build.gradle.internal.cxx.logging.IssueReporterLoggingEnvironment.log(IssueReporterLoggingEnvironment.kt:44)
    at com.android.build.gradle.internal.cxx.logging.PassThroughDeduplicatingLoggingEnvironment.log(PassThroughDeduplicatingLoggingEnvironment.kt:33)
    at com.android.build.gradle.internal.cxx.logging.PassThroughPrefixingLoggingEnvironment.log(PassThroughPrefixingLoggingEnvironment.kt:33)
    at com.android.build.gradle.internal.cxx.logging.PassThroughPrintWriterLoggingEnvironment.log(PassThroughPrintWriterLoggingEnvironment.kt:33)
    at com.android.build.gradle.internal.cxx.logging.ThreadLoggingEnvironment$Companion.reportFormattedErrorToCurrentLogger(LoggingEnvironment.kt:164)
    at com.android.build.gradle.internal.cxx.logging.LoggingEnvironmentKt.errorln(LoggingEnvironment.kt:41)
    at com.android.build.gradle.tasks.CmakeServerExternalNativeJsonGenerator.logInteractiveMessage(CmakeServerExternalNativeJsonGenerator.java:249)
    at com.android.build.gradle.tasks.CmakeServerExternalNativeJsonGenerator.lambda$executeProcessAndGetOutput$0(CmakeServerExternalNativeJsonGenerator.java:158)
    at com.android.build.gradle.external.cmake.server.ServerProtocolV1.decodeResponse(ServerProtocolV1.java:421)
    at com.android.build.gradle.external.cmake.server.ServerProtocolV1.configure(ServerProtocolV1.java:188)
    at com.android.build.gradle.tasks.CmakeServerExternalNativeJsonGenerator.executeProcessAndGetOutput(CmakeServerExternalNativeJsonGenerator.java:198)
    at com.android.build.gradle.tasks.CmakeExternalNativeJsonGenerator.executeProcess(CmakeExternalNativeJsonGenerator.java:99)
    at com.android.build.gradle.tasks.ExternalNativeJsonGenerator.buildForOneConfiguration(ExternalNativeJsonGenerator.java:302)
    at com.android.build.gradle.tasks.ExternalNativeJsonGenerator.buildAndPropagateException(ExternalNativeJsonGenerator.java:196)
    at com.android.build.gradle.tasks.ExternalNativeJsonGenerator.build(ExternalNativeJsonGenerator.java:139)
    at com.android.build.gradle.tasks.ExternalNativeBuildJsonTask.doTaskAction(ExternalNativeBuildJsonTask.java:41)
    at com.android.build.gradle.internal.tasks.NonIncrementalTask$taskAction$$inlined$recordTaskAction$1.invoke(AndroidVariantTask.kt:73)
    at com.android.build.gradle.internal.tasks.NonIncrementalTask$taskAction$$inlined$recordTaskAction$1.invoke(AndroidVariantTask.kt:34)
    at com.android.build.gradle.internal.tasks.Blocks.recordSpan(Blocks.java:91)
    at com.android.build.gradle.internal.tasks.NonIncrementalTask.taskAction(NonIncrementalTask.kt:34)
    at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:103)
    at org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:49)
    at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:42)
    at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:28)
    at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:717)
    at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:684)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$5.run(ExecuteActionsTaskExecuter.java:476)
    at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
    at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
    at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
    at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
    at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
    at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
    at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:461)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:444)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$200(ExecuteActionsTaskExecuter.java:93)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:237)
    at org.gradle.internal.execution.steps.ExecuteStep.lambda$execute$1(ExecuteStep.java:33)
    at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:33)
    at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:26)
    at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:58)
    at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:35)
    at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:48)
    at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:33)
    at org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:39)
    at org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:73)
    at org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:54)
    at org.gradle.internal.execution.steps.CatchExceptionStep.execute(CatchExceptionStep.java:35)
    at org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:51)
    at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:45)
    at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:31)
    at org.gradle.internal.execution.steps.CacheStep.executeWithoutCache(CacheStep.java:208)
    at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:70)
    at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:45)
    at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:49)
    at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:43)
    at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:32)
    at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:38)
    at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:24)
    at org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:96)
    at org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:89)
    at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:54)
    at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:38)
    at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:76)
    at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:37)
    at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:36)
    at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:26)
    at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:90)
    at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:48)
    at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:69)
    at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:47)
    at org.gradle.internal.execution.impl.DefaultWorkExecutor.execute(DefaultWorkExecutor.java:33)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:140)
    ... 129 more