Ubuntu，无法启动react-native：找不到tools.jar

Question

我关注了getting started guide Android / Linux。

我尝试使用react-native run-android在ubuntu下启动本机反应，但它失败并显示错误：

FAILURE: Build failed with an exception.

    * What went wrong:
    Execution failed for task ':app:compileDebugJavaWithJavac'.
    > Could not find tools.jar  

我该如何解决？

完整输出：

 $ react-native run-android
    Starting JS server...
    /bin/sh: 1: adb: not found
    Building and installing the app on the device (cd android && ./gradlew installDebug...
    :app:preBuild UP-TO-DATE
    :app:preDebugBuild UP-TO-DATE
    :app:checkDebugManifest
    :app:preReleaseBuild UP-TO-DATE
    :app:prepareComAndroidSupportAppcompatV72301Library UP-TO-DATE
    :app:prepareComAndroidSupportRecyclerviewV72301Library UP-TO-DATE
    :app:prepareComAndroidSupportSupportV42321Library UP-TO-DATE
    :app:prepareComFacebookFrescoDrawee0110Library UP-TO-DATE
    :app:prepareComFacebookFrescoFbcore0110Library UP-TO-DATE
    :app:prepareComFacebookFrescoFresco0110Library UP-TO-DATE
    :app:prepareComFacebookFrescoImagepipeline0110Library UP-TO-DATE
    :app:prepareComFacebookFrescoImagepipelineBase0110Library UP-TO-DATE
    :app:prepareComFacebookFrescoImagepipelineOkhttp30110Library UP-TO-DATE
    :app:prepareComFacebookReactReactNative0361Library 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: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:processDebugJavaRes UP-TO-DATE
    :app:compileDebugJavaWithJavac FAILED

    FAILURE: Build failed with an exception.

    * What went wrong:
    Execution failed for task ':app:compileDebugJavaWithJavac'.
    > Could not find tools.jar

正在运行echo $JAVA_HOME会产生/usr/lib/jvm/java-8-openjdk-amd64

Answer 1

再次安装openjdk解决了这个问题：

sudo apt-get install openjdk-8-jdk

Answer 2

检查以确保Java编译器可用。我通常不会用Java开发，所以，在运行Java的时候，我还没有专门编译过Java项目。运行：

javac -version

如果你得到我收到的同样的东西，那么......你知道这个问题。我安装了最新的Oracle JDK（ shiver ），现在我已经做好了本地反应。我遇到了一些环境变量的问题，这些问题通过以下方式解决：

unset $JAVA_HOME
source ~/.profile

注意：.profile脚本中包含我的SDK env vars。

希望这有帮助！

Answer 3

如果您是从谷歌来到这里并且您正在开发RHEL，则需要

sudo yum install java-1.8.0-openjdk-javadoc

和

sudo yum install java-1.8.0-openjdk-devel

Answer 4

使用突触软件包安装openjdk之后也遇到了同样的问题。

npx react-native run-android

无法在设备中安装该应用程序。直到我在这样的终端中安装了openjdk-8-jdk ...

sudo apt-get install openjdk-8-jdk

Answer 5

在知道我只安装了openjdk-8- jre -headless而不是openjdk-8- jdk -headless后，出现了此错误。请注意 jre 与 jdk

之间的细微差别

Answer 6

在Ubuntu中

sudo apt-get install openjdk-8-jdk-headless