大家好，
因此，我正在从事这个react-native项目，并考虑过使用react-native-i18n在我的应用程序中支持多种语言。
我用纱安装了包裹：
yarn add react-native-i18n
然后我将其与react-native link react-native-i18n关联
然后按照其github存储库上的安装指南手动重新验证android文件。
所有代码均正常运行，但应用程序无法启动。第一次尝试时我使用的是android API 22，所以我认为可能与API版本有关，因此我使用了可用的最大版本，即API 28，但仍然存在相同的问题。
这是我在Metro服务器上收到的错误：
events.js:173
throw er; // Unhandled 'error' event
^
Error: EPERM: operation not permitted, lstat 'F:\Projects\pfe\front\android\app\build\intermediates\blame\res\debug\multi-v2'
Emitted 'error' event at:
at NodeWatcher.<anonymous> (F:\Projects\pfe\front\node_modules\metro\node_modules\sane\src\node_watcher.js:291:16)
at F:\Projects\pfe\front\node_modules\graceful-fs\polyfills.js:282:31
at FSReqCallback.oncomplete (fs.js:159:21)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
这是我从运行android得到的错误：
> Configure project :app
WARNING: Configuration 'compile' is obsolete and has been replaced with 'implementation' and 'api'.
It will be removed at the end of 2018. For more information see: http://d.android.com/r/tools/update-dependency-configurations.html
> Configure project :react-native-i18n
WARNING: Configuration 'compile' is obsolete and has been replaced with 'implementation' and 'api'.
It will be removed at the end of 2018. For more information see: http://d.android.com/r/tools/update-dependency-configurations.html
> Task :react-native-gesture-handler:compileDebugJavaWithJavac
Note: F:\Projects\pfe\front\node_modules\react-native-gesture-handler\android\src\main\java\com\swmansion\gesturehandler\react\RNGestureHandlerButtonViewManager.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
> Task :react-native-i18n:compileDebugJavaWithJavac
Note: F:\Projects\pfe\front\node_modules\react-native-i18n\android\src\main\java\com\AlexanderZaytsev\RNI18n\RNI18nModule.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
> Task :app:mergeDebugAssets FAILED
Could not merge source set folders:
Error: java.lang.RuntimeException: java.lang.RuntimeException: java.nio.file.AccessDeniedException: F:\Projects\pfe\front\android\app\build\intermediates\merged_assets\debug\mergeDebugAssets\out\fonts
at com.android.ide.common.resources.MergeWriter.end(MergeWriter.java:52)
at com.android.ide.common.resources.DataMerger.mergeData(DataMerger.java:292)
at com.android.ide.common.resources.AssetMerger.mergeData(AssetMerger.java:27)
at com.android.build.gradle.tasks.MergeSourceSetFolders.doFullTaskAction(MergeSourceSetFolders.java:135)
at com.android.build.gradle.tasks.MergeSourceSetFolders.doIncrementalTaskAction(MergeSourceSetFolders.java:163)
at com.android.build.gradle.internal.tasks.IncrementalTask.taskAction(IncrementalTask.java:110)
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.reflect.JavaMethod.invoke(JavaMethod.java:73)
at org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute(IncrementalTaskAction.java:50)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:39)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:26)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:131)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$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.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:120)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:99)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:77)
at org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:59)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:59)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:101)
at org.gradle.api.internal.tasks.execution.FinalizeInputFilePropertiesTaskExecuter.execute(FinalizeInputFilePropertiesTaskExecuter.java:44)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:91)
at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:62)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:59)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.run(EventFiringTaskExecuter.java:51)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:300)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:292)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:174)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:46)
at org.gradle.execution.taskgraph.LocalTaskInfoExecutor.execute(LocalTaskInfoExecutor.java:42)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareWorkItemExecutor.execute(DefaultTaskExecutionGraph.java:277)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareWorkItemExecutor.execute(DefaultTaskExecutionGraph.java:262)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:135)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:130)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker.execute(DefaultTaskPlanExecutor.java:200)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker.executeWithWork(DefaultTaskPlanExecutor.java:191)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker.run(DefaultTaskPlanExecutor.java:130)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.RuntimeException: java.nio.file.AccessDeniedException: F:\Projects\pfe\front\android\app\build\intermediates\merged_assets\debug\mergeDebugAssets\out\fonts
at java.util.concurrent.ForkJoinTask.get(ForkJoinTask.java:1006)
at com.android.ide.common.workers.ExecutorServiceAdapter.close(ExecutorServiceAdapter.kt:56)
at com.android.ide.common.workers.ExecutorServiceAdapter.await(ExecutorServiceAdapter.kt:47)
at com.android.ide.common.resources.MergeWriter.end(MergeWriter.java:48)
... 55 more
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.nio.file.AccessDeniedException: F:\Projects\pfe\front\android\app\build\intermediates\merged_assets\debug\mergeDebugAssets\out\fonts
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:593)
at java.util.concurrent.ForkJoinTask.get(ForkJoinTask.java:1005)
... 58 more
Caused by: java.lang.RuntimeException: java.nio.file.AccessDeniedException: F:\Projects\pfe\front\android\app\build\intermediates\merged_assets\debug\mergeDebugAssets\out\fonts
at com.android.ide.common.resources.MergedAssetWriter$AssetWorkAction.run(MergedAssetWriter.java:97)
at com.android.ide.common.workers.ExecutorServiceAdapter$submit$submission$1.run(ExecutorServiceAdapter.kt:39)
at java.util.concurrent.ForkJoinTask$AdaptedRunnableAction.exec(ForkJoinTask.java:1386)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: java.nio.file.AccessDeniedException: F:\Projects\pfe\front\android\app\build\intermediates\merged_assets\debug\mergeDebugAssets\out\fonts
at sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:83)
at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97)
at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:102)
at sun.nio.fs.WindowsFileSystemProvider.createDirectory(WindowsFileSystemProvider.java:504)
at java.nio.file.Files.createDirectory(Files.java:674)
at java.nio.file.Files.createAndCheckIsDirectory(Files.java:781)
at java.nio.file.Files.createDirectories(Files.java:767)
at com.android.ide.common.resources.MergedAssetWriter$AssetWorkAction.run(MergedAssetWriter.java:84)
... 6 more
FAILURE: Build failed with an exception.
* What went wrong:
Failed to capture fingerprint of output files for task ':app:mergeDebugAssets' property 'outputDir' during up-to-date check.
> Could not read path 'F:\Projects\pfe\front\android\app\build\intermediates\merged_assets\debug\mergeDebugAssets\out\fonts'.
* 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 19s
51 actionable tasks: 44 executed, 7 up-to-date
error Could not install the app on the device, read the error above for details.
Make sure you have an Android emulator running or a device connected and have
set up your Android development environment:
https://facebook.github.io/react-native/docs/getting-started.html
error Command failed: gradlew.bat app:installDebug. Run CLI with --verbose flag for more details.
我知道错误消息太长了，但是我不知道该保留哪一条，以及要删除哪一条，所以我希望你们有足够的热情来看看它们，并帮助我弄清楚这个问题。 如果我需要添加任何代码，请问一下，我没有任何部分，因为我的android文件与安装指南相同。
在此先感谢大家的时间和帮助。祝你有美好的一天。
答案 0 :(得分：1)
尝试将其应用于实际代码并重新加载。
example.js：
// app/i18n/locales/en.js
export default {
greeting: 'Hi!'
};
// app/i18n/locales/fr.js
export default {
greeting: 'Bonjour!'
};
// app/i18n/i18n.js
import I18n from 'react-native-i18n';
import en from './locales/en';
import fr from './locales/fr';
I18n.fallbacks = true;
I18n.translations = {
en,
fr
};
export default I18n;
// usage in component
import I18n from 'app/i18n/i18n';
class Demo extends React.Component {
render () {
return (
<Text>{I18n.t('greeting')}</Text>
)
}
}
Links，描述为i18n