React Native fb-sdk 找不到符号 CallbackManager

Question

React Native 和 fbsdk 版本：

"react": "16.6.3",
"react-native": "0.58.5",
"react-native-fbsdk": "^0.8.0"

我收到以下错误：

> Task :app:compileDebugJavaWithJavac FAILED
C:\Users\xxxx\Desktop\project\android\app\src\main\java\com\project\MainApplication.java:22: error: cannot find symbol
  private static CallBackManager mCallbackManager = CallbackManager.Factory.create();
                 ^
  symbol:   class CallBackManager
  location: class MainApplication
C:\Users\xxxx\Desktop\project\android\app\src\main\java\com\project\MainApplication.java:24: error: cannot find symbol
  protected static CallBackManager getCallbackManager() {
                   ^
  symbol:   class CallBackManager
  location: class MainApplication
2 errors

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

问题似乎与这部分代码有关，但我不太清楚哪里出了问题。我完全按照他们 official repository.

中提供的说明进行操作

public class MainApplication extends Application implements ReactApplication {

  private static CallBackManager mCallbackManager = CallbackManager.Factory.create();

  protected static CallBackManager getCallbackManager() {
    return mCallbackManager;
  }

  // ...

  @Override
  protected List<ReactPackage> getPackages() {
    return Arrays.<ReactPackage>asList(
      new MainReactPackage(),
      new FBSDKPackage(mCallbackManager)
    );
  }

  // ...

}

我还手动将以下导入添加到 MainActivity.java：

import com.facebook.CallbackManager;
import com.facebook.FacebookSdk;
import com.facebook.reactnative.androidsdk.FBSDKPackage;

将这些行添加到 app/build.gradle:

implementation project(':react-native-fbsdk')
implementation 'com.facebook.android:facebook-android-sdk:4.34.0'

这些 settings.gradle:

include ':react-native-fbsdk'
project(':react-native-fbsdk').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-fbsdk/android')

Answer 1

如果有人碰巧遇到了同样的问题，这与 npm 有关，而不是 link 正确地将 fb-sdk 添加到项目中。我尝试使用 npm install 和 npm link，但没有成功，尽管 npm 没有抛出任何错误。但是，使用 react-native 安装 sdk 解决了问题：

react-native install react-native-fbsdk
react-native link react-native-fbsdk

如果您在尝试 link 时运行遇到 MODULE_NOT_FOUND 错误，请在项目根文件夹和运行:

上打开命令行

cd android
gradlew clean

此外，虽然他们的官方 GitHub repository does contain instructions regarding the installation process, I recommend following the facebook developers page 相反，因为它在可读性和细节方面要好得多。

React Native fb-sdk 找不到符号 CallbackManager

React Native fb-sdk cannot find symbol CallbackManager

react-native

react-native-fbsdk