React Native：意外标记的转换错误（

问题描述：

我按照React Native's Android Setup Page中显示的确切说明执行了代码，并且昨天没有遇到任何问题，现在我试着运行完全相同的代码。 “构建是成功的”，但我看到的只有android/build/intermediates/dex-cache/cache.xml文件，并没有更多的android/builid文件夹还具有以下错误as shown in this image我试图弄清楚什么是错在这里是终端输出：。React Native：意外标记的转换错误（

[email protected]:~/Desktop/tutorials/react native tutorial/NewPro$ react-native run-android 
Scanning 559 folders for symlinks in /home/ugur/Desktop/tutorials/react native tutorial/NewPro/node_modules (2ms) 
Starting JS server... 
Building and installing the app on the device (cd android && ./gradlew installDebug)... 
Incremental java compilation is an incubating feature. 
:app:preBuild UP-TO-DATE 
:app:preDebugBuild UP-TO-DATE 
:app:checkDebugManifest 
:app:preReleaseBuild UP-TO-DATE 
:app:prepareComAndroidSupportAppcompatV72301Library UP-TO-DATE 
:app:prepareComAndroidSupportSupportV42301Library UP-TO-DATE 
:app:prepareComFacebookFbuiTextlayoutbuilderTextlayoutbuilder100Library UP-TO-DATE 
:app:prepareComFacebookFrescoDrawee101Library UP-TO-DATE 
:app:prepareComFacebookFrescoFbcore101Library UP-TO-DATE 
:app:prepareComFacebookFrescoFresco101Library UP-TO-DATE 
:app:prepareComFacebookFrescoImagepipeline101Library UP-TO-DATE 
:app:prepareComFacebookFrescoImagepipelineBase101Library UP-TO-DATE 
:app:prepareComFacebookFrescoImagepipelineOkhttp3101Library UP-TO-DATE 
:app:prepareComFacebookReactReactNative0471Library UP-TO-DATE 
:app:prepareComFacebookSoloaderSoloader010Library UP-TO-DATE 
:app:prepareOrgWebkitAndroidJscR174650Library UP-TO-DATE 
:app:prepareDebugDependencies 
:app:compileDebugAidl UP-TO-DATE 
:app:compileDebugRenderscript UP-TO-DATE 
:app:generateDebugBuildConfig UP-TO-DATE 
:app:mergeDebugShaders UP-TO-DATE 
:app:compileDebugShaders UP-TO-DATE 
:app:generateDebugAssets UP-TO-DATE 
:app:mergeDebugAssets UP-TO-DATE 
:app:generateDebugResValues UP-TO-DATE 
:app:generateDebugResources UP-TO-DATE 
:app:mergeDebugResources UP-TO-DATE 
:app:bundleDebugJsAndAssets SKIPPED 
:app:processDebugManifest UP-TO-DATE 
:app:processDebugResources UP-TO-DATE 
:app:generateDebugSources UP-TO-DATE 
:app:incrementalDebugJavaCompilationSafeguard UP-TO-DATE 
:app:compileDebugJavaWithJavac UP-TO-DATE 
:app:compileDebugNdk UP-TO-DATE 
:app:compileDebugSources UP-TO-DATE 
:app:transformClassesWithDexForDebug UP-TO-DATE 
:app:mergeDebugJniLibFolders UP-TO-DATE 
:app:transformNative_libsWithMergeJniLibsForDebug UP-TO-DATE 
:app:processDebugJavaRes UP-TO-DATE 
:app:transformResourcesWithMergeJavaResForDebug UP-TO-DATE 
:app:validateSigningDebug 
:app:packageDebug UP-TO-DATE 
:app:assembleDebug UP-TO-DATE 
:app:installDebug 
Installing APK 'app-debug.apk' on 'SM-N910C - 6.0.1' for app:debug 
Installed on 1 device. 

BUILD SUCCESSFUL 

Total time: 17.032 secs 
Running /home/ugur/Android/Sdk/platform-tools/adb -s 4100fef8e47db1b3 reverse tcp:8081 tcp:8081 
adb server version (32) doesn't match this client (39); killing... 
* daemon started successfully * 
Starting the app on 4100fef8e47db1b3 (/home/ugur/Android/Sdk/platform-tools/adb -s 4100fef8e47db1b3 shell am start -n com.newpro/com.newpro.MainActivity)... 
Starting: Intent { cmp=com.newpro/.MainActivity }

我的操作系统是Elementary OS，Node v6.11.2，react-native-cli v2.0.1。

如果你指导我找出我的构建出了什么问题，我会很高兴。

答

这是与babel-preset-react-native模块相关的内容。尝试运行，

yarn remove babel-preset-react-native 
yarn add [email protected]

或者，如果您使用NPM，

npm uninstall babel-preset-react-native 
npm install [email protected]

我爱你

似乎有一些3.0的问题或文档不符合新的变化。 –

是的，它工作！ –

答

删除node_modules文件夹，然后运行命令。

npm install

然后运行该项目。

答

试图杀死在端口8081

任何过程，如果你是在Mac上，然后运行以下命令

sudo lsof -n -i4TCP:8081

答

回答了这个话题：https://*.com/a/45778766/4621698

这对我有用。

解决方法：

"dependencies": { 
"react": "16.0.0-alpha.12", 
"react-native": "0.47.1", 
"babel-preset-react-native": "2.1.0" 
},

见上文，现在巴别预置反应的天然分2.1.0。然后，

rm -rf node_module 
npm cache clean 
npm i

，并重新启动取其Android或iOS。

React Native：意外标记的转换错误（

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