android – react-native：’adb’不被识别为内部或外部命令,可操作程序或批处理文件

我是新的反应原生 Android应用程序开发.请帮我解决这个问题.

我无法运行我的第一个应用程序,因为adb’未被识别为内部或外部命令,可操作程序或批处理文件而出现错误.

我检查了android sdk-> platform-tools->我可以在那里看到adb.exe.

构建成功但在运行时出错.下面是我的cmd提示符

Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.
E:\ReactWorkSpace\MyFirstApp>react-native run-android
Scanning 560 folders for symlinks in E:\ReactWorkSpace\MyFirstApp\node_modules (72ms)
JS server already running.
Building and installing the app on the device (cd android && gradlew.bat 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
:app:prepareComAndroidSupportRecyclerviewV72340Library
:app:prepareComAndroidSupportSupportV42340Library
:app:prepareComFacebookFbuiTextlayoutbuilderTextlayoutbuilder100Library
:app:prepareComFacebookFrescoDrawee101Library
:app:prepareComFacebookFrescoFbcore101Library
:app:prepareComFacebookFrescoFresco101Library
:app:prepareComFacebookFrescoImagepipeline101Library
:app:prepareComFacebookFrescoImagepipelineBase101Library
:app:prepareComFacebookFrescoImagepipelineOkhttp3101Library
:app:prepareComFacebookReactReactNative0434Library
:app:prepareComFacebookSoloaderSoloader010Library
:app:prepareOrgWebkitAndroidJscR174650Library
:app:prepareDebugDependencies
:app:compileDebugAidl
:app:compileDebugRenderscript
:app:generateDebugBuildConfig
:app:mergeDebugShaders
:app:compileDebugShaders
:app:generateDebugAssets
:app:mergeDebugAssets
:app:generateDebugResValues
:app:generateDebugResources
:app:mergeDebugResources
:app:bundleDebugJsAndAssets SKIPPED
:app:processDebugManifest
:app:processDebugResources
:app:generateDebugSources
:app:incrementalDebugJavaCompilationSafeguard
:app:compileDebugJavaWithJavac
:app:compileDebugJavaWithJavac - is not incremental (e.g. outputs have changed,no prevIoUs execution,etc.).
:app:compileDebugNdk UP-TO-DATE
:app:compileDebugSources
:app:transformClassesWithDexForDebug
Running dex in-process requires build tools 23.0.2.
For faster builds update this project to use the latest build tools.
:app:mergeDebugJniLibFolders
:app:transformNative_libsWithMergeJniLibsForDebug
:app:processDebugJavaRes UP-TO-DATE
:app:transformResourcesWithMergeJavaResForDebug
:app:validateSigningDebug
:app:packageDebug
:app:assembleDebug
:app:installDebug
Installing APK 'app-debug.apk' on 'A16 - 4.2.2' for app:debug
Installed on 1 device.

BUILD SUCCESSFUL

Total time: 7 mins 4.412 secs
'adb' is not recognized as an internal or external command,operable program or batch file.
Starting the app (D:\Android\sdk/platform-tools/adb shell am start -n com.myfirstapp/.MainActivity...
Starting: Intent { cmp=com.myfirstapp/.MainActivity }

E:\ReactWorkSpace\MyFirstApp>

我没有使用模拟器,使用自己的移动设备.应用程序在我的设备中启动,但我看到的只是一个白色的空白屏幕.我按照官方网站上的说法正确遵循了所有说明.

谢谢.

解决方法

我找到了解决方案.

您所要做的就是在系统变量中添加adb路径.

复制adb位置,然后转到Controlpanel-> System-> Advnaced System Settings-> Environment Variables->在系统变量下,您将找到PATH变量,首先选择并单击Edit,然后单击New并粘贴您的adb路径,现在单击确定.多数民众赞成解决问题.

现在重新启动命令提示符,并运行react-native run-android.有用：)

希望这有助于某人.谢谢你查看我的问题.