我是一名新的安卓应用开发人员.请帮我解决这个问题.
我无法运行我的第一个应用程序，错误为adb' is not recognized as an internal or external command, operable program or batch file.
I checked inside android sdk->platform-tools->i can see adb.exe there.
生成已成功，但在运行时出错.下面是我的cmd prompt美元
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emulator，我使用的是我自己的移动设备.应用程序在我的设备上启动，但我看到的只是一个白色的空白屏幕.我按照官方网站上提到的所有说明进行了正确的操作.
非常感谢.