找不到com.android.support:support-v4:23.2.1

Question

当使用react-本机0.28及以上(0.29，0.30-rc)时，在新的react-native run-android项目中执行react-native init app时会出现以下错误。

Could not find com.android.support:support-v4:23.2.1.

我安装了最新的android工作室，甚至手动安装了过时的库。

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我做错了什么？谢谢!

Answer 1

要完成托尼西的回答-- .jar可能还不够，您需要复制两个完整的目录，否则gradle会抱怨缺少的.aar。在本例中，我认为是由Android：{USER}/Library/Android/sdk/extras/android/m2repository/com/android/support/support-v4/23.2.1/安装的

别忘了依赖：{USER}/Library/Android/sdk/extras/android/m2repository/com/android/support/support-annotations/23.2.1/

在升级到react-native 0.30时，我遇到了同样的问题，这解决了这个问题。

Answer 2

Google似乎已经停止了在没有源代码/javadoc/etc的情况下包含每个支持库的版本，并且React正在寻找这个特定的文件。假设您手动安装了过时的版本，它将在{YOUR_ANDROID_LOCATION}/extras/android/support/v4/android-support-v4.jar中--您最好的选择是手动复制它：

cp {YOUR_ANDROID_LOCATION}/extras/android/support/v4/android-support-v4.jar {YOUR_ANDROID_LOCATION}/extras/android/m2repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar

这是一个反应本机(版本，可能是OSX特定的错误)，它可能很快就会修复。对于后人来说，你的全部错误是这样的，在所有错误的地方寻找支持：

OsagieTheGreat-MBA:somereactapp osagiethegreat$ react-native run-android
JS server already running.
Building and installing the app on the device (cd android && ./gradlew installDebug...

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugCompile'.
   > Could not find com.android.support:support-v4:23.2.1.
     Searched in the following locations:
         file:/Users/osagiethegreat/.m2/repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.pom
         file:/Users/osagiethegreat/.m2/repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar
         https://jcenter.bintray.com/com/android/support/support-v4/23.2.1/support-v4-23.2.1.pom
         https://jcenter.bintray.com/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar
         file:/Users/osagiethegreat/Documents/somereactapp/node_modules/react-native/android/com/android/support/support-v4/23.2.1/support-v4-23.2.1.pom
         file:/Users/osagiethegreat/Documents/somereactapp/node_modules/react-native/android/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar
         file:/Applications/Android Dev/sdk/extras/android/m2repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.pom
         file:/Applications/Android Dev/sdk/extras/android/m2repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar
         file:/Applications/Android Dev/sdk/extras/google/m2repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.pom
         file:/Applications/Android Dev/sdk/extras/google/m2repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar
     Required by:
         SomeReactApp:app:unspecified > com.android.support:appcompat-v7:23.0.1
         SomeReactApp:app:unspecified > com.facebook.react:react-native:0.29.0 > com.android.support:recyclerview-v7:23.0.1
   > Could not find com.android.support:support-v4:23.2.1.
     Searched in the following locations:
         file:/Users/osagiethegreat/.m2/repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.pom
         file:/Users/osagiethegreat/.m2/repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar
         https://jcenter.bintray.com/com/android/support/support-v4/23.2.1/support-v4-23.2.1.pom
         https://jcenter.bintray.com/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar
         file:/Users/osagiethegreat/Documents/somereactapp/node_modules/react-native/android/com/android/support/support-v4/23.2.1/support-v4-23.2.1.pom
         file:/Users/osagiethegreat/Documents/somereactapp/node_modules/react-native/android/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar
         file:/Applications/Android Dev/sdk/extras/android/m2repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.pom
         file:/Applications/Android Dev/sdk/extras/android/m2repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar
         file:/Applications/Android Dev/sdk/extras/google/m2repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.pom
         file:/Applications/Android Dev/sdk/extras/google/m2repository/com/android/support/support-v4/23.2.1/support-v4-23.2.1.jar
     Required by:
         SomeReactApp:app:unspecified > com.facebook.react:react-native:0.29.0 > com.facebook.fresco:imagepipeline-okhttp3:0.11.0 > com.facebook.fresco:imagepipeline:0.11.0
         SomeReactApp:app:unspecified > com.facebook.react:react-native:0.29.0 > com.facebook.fresco:fresco:0.11.0 > com.facebook.fresco:drawee:0.11.0
         SomeReactApp:app:unspecified > com.facebook.react:react-native:0.29.0 > com.facebook.fresco:imagepipeline-okhttp3:0.11.0 > com.facebook.fresco:imagepipeline:0.11.0 > com.facebook.fresco:imagepipeline-base:0.11.0

* 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: 10.838 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

Answer 3

我也得到了这个错误，安装了Android支持库之后，错误就消失了。从Extras安装Android支持库

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