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我正在关注一个关于安装 native React 的 youtube 视频,并且是全新的。我输入了运行 android 的命令以响应 native 项目,并弹出一个构建错误,说我缺少 tools.jar。我在这里看到以前的支持线程说这个人没有 Android 支持存储库,但我确实安装了它。这是错误
Starting JS server...
Starting the packager in a new window is not supported on Windows yet.
Please start it manually using 'react-native start'.
We believe the best Windows support will come from a community of people
using React Native on Windows on a daily basis.
Would you be up for sending a pull request?
Building and installing the app on the device (cd android && gradlew.bat installDebug)...
Download https://jcenter.bintray.com/net/sf/proguard/proguard-gradle/5.2.1/proguard-gradle-5.2.1.pom
Download https://jcenter.bintray.com/net/sf/proguard/proguard-parent/5.2.1/proguard-parent-5.2.1.pom
Download https://jcenter.bintray.com/com/squareup/javawriter/2.5.0/javawriter-2.5.0.pom
Download https://jcenter.bintray.com/org/bouncycastle/bcpkix-jdk15on/1.48/bcpkix-jdk15on-1.48.pom
Download https://jcenter.bintray.com/org/bouncycastle/bcprov-jdk15on/1.48/bcprov-jdk15on-1.48.pom
Download https://jcenter.bintray.com/org/ow2/asm/asm/5.0.3/asm-5.0.3.pom
Download https://jcenter.bintray.com/org/ow2/asm/asm-parent/5.0.3/asm-parent-5.0.3.pom
Download https://jcenter.bintray.com/org/ow2/ow2/1.3/ow2-1.3.pom
Download https://jcenter.bintray.com/org/ow2/asm/asm-tree/5.0.3/asm-tree-5.0.3.pom
Download https://jcenter.bintray.com/com/android/tools/jack/jack-api/0.9.0/jack-api-0.9.0.pom
Download https://jcenter.bintray.com/com/android/tools/jill/jill-api/0.9.0/jill-api-0.9.0.pom
Download https://jcenter.bintray.com/org/eclipse/jdt/core/compiler/ecj/4.4.2/ecj-4.4.2.pom
Download https://jcenter.bintray.com/net/sf/proguard/proguard-base/5.2.1/proguard-base-5.2.1.pom
Download https://jcenter.bintray.com/com/google/code/gson/gson/2.2.4/gson-2.2.4.pom
Download https://jcenter.bintray.com/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.pom
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Download https://jcenter.bintray.com/org/apache/httpcomponents/project/4.1.1/project-4.1.1.pom
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Download https://jcenter.bintray.com/com/intellij/annotations/12.0/annotations-12.0.pom
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Download https://jcenter.bintray.com/com/android/tools/external/lombok/lombok-ast/0.2.3/lombok-ast-0.2.3.pom
Download https://jcenter.bintray.com/net/sf/proguard/proguard-gradle/5.2.1/proguard-gradle-5.2.1.jar
Download https://jcenter.bintray.com/com/squareup/javawriter/2.5.0/javawriter-2.5.0.jar
Download https://jcenter.bintray.com/org/bouncycastle/bcpkix-jdk15on/1.48/bcpkix-jdk15on-1.48.jar
Download https://jcenter.bintray.com/org/bouncycastle/bcprov-jdk15on/1.48/bcprov-jdk15on-1.48.jar
Download https://jcenter.bintray.com/org/ow2/asm/asm/5.0.3/asm-5.0.3.jar
Download https://jcenter.bintray.com/org/ow2/asm/asm-tree/5.0.3/asm-tree-5.0.3.jar
Download https://jcenter.bintray.com/com/android/tools/jack/jack-api/0.9.0/jack-api-0.9.0.jar
Download https://jcenter.bintray.com/com/android/tools/jill/jill-api/0.9.0/jill-api-0.9.0.jar
Download https://jcenter.bintray.com/org/eclipse/jdt/core/compiler/ecj/4.4.2/ecj-4.4.2.jar
Download https://jcenter.bintray.com/net/sf/proguard/proguard-base/5.2.1/proguard-base-5.2.1.jar
Download https://jcenter.bintray.com/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar
Download https://jcenter.bintray.com/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar
Download https://jcenter.bintray.com/org/apache/httpcomponents/httpclient/4.1.1/httpclient-4.1.1.jar
Download https://jcenter.bintray.com/org/apache/httpcomponents/httpmime/4.1/httpmime-4.1.jar
Download https://jcenter.bintray.com/com/google/guava/guava/17.0/guava-17.0.jar
Download https://jcenter.bintray.com/net/sf/kxml/kxml2/2.3.0/kxml2-2.3.0.jar
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Download https://jcenter.bintray.com/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar
Download https://jcenter.bintray.com/commons-codec/commons-codec/1.4/commons-codec-1.4.jar
Download https://jcenter.bintray.com/com/android/tools/external/lombok/lombok-ast/0.2.3/lombok-ast-0.2.3.jar
: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:prepareComAndroidSupportSupportV42301Library UP-TO-DATE
:app:prepareComFacebookFrescoDrawee081Library UP-TO-DATE
:app:prepareComFacebookFrescoFbcore081Library UP-TO-DATE
:app:prepareComFacebookFrescoFresco081Library UP-TO-DATE
:app:prepareComFacebookFrescoImagepipeline081Library UP-TO-DATE
:app:prepareComFacebookFrescoImagepipelineOkhttp081Library UP-TO-DATE
:app:prepareComFacebookReactReactNative0191Library 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
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 30.123 secs
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/android-setup.html
我很感激任何帮助。如果可能的话,我能得到简单的说明吗,很多东西对我来说都是新的,但我会尝试的。
最佳答案
聚会有点晚了,但我希望这对您有所帮助!
可能是 Java 开发工具包 (JDK)(不要与您的常规 Java 安装 JRE 混淆)未安装在您的机器上或环境变量未正确设置。
JDK 可以在这里下载 -> http://www.oracle.com/technetwork/java/javase/downloads/index-jsp-138363.html
要设置您的环境变量,请转到控制面板 -> 系统和安全 -> 系统,然后进入高级系统设置并为以下项设置新变量:变量名 = JAVA_HOME变量值 = C:\Program Files\Java\jdk1.8.0_121(!这可能因您的安装而异!)
提示!要确定 tools.jar 的安装位置,只需通过 Windows 资源管理器搜索工具查找它,但使用根目录(例如 jdk1.8.0_121)作为变量值 .
关闭并打开您的终端并再次运行 react-native run-android
;)
选项#2像选项 1 一样下载 JDK 后,转到 JDK 的安装目录并查找 lib,然后在文件夹中查找 tools.jar。
例如 C:\Program Files\Java\jdk1.8.0_121\lib
将tools.jar复制到android studio安装库中
例如C:\Program Files\Android\Android Studio\lib(同样取决于您的安装)
我希望这足够详尽!
关于java - 由于找不到 tools.jar,运行 android 构建失败以响应 native 项目,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35388969/
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