离子Facebook和条形码扫描仪问题

Question

我在使用Facebook插件和条形码扫描器时遇到问题，首先我创建了一个单独的项目来检查Facebook插件的工作方式并正常运行，但是当我将Facebook插件添加到我的项目中时，我使用条形码扫描器插件无法在android中运行该项目，出现以下异常：

 BUILD FAILED

Total time: 10.111 secs
FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':transformClassesWithJarMergingForDebug'.
> com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/google/zxing/BarcodeFormat.class

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Error: cmd: Command failed with exit code 1 Error output:
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':transformClassesWithJarMergingForDebug'.
> com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/google/zxing/BarcodeFormat.class

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

[ERROR] An error occurred while running cordova run android (exit code 1).

Answer 1

步骤1：安装条形码扫描器插件：

$ ionic cordova plugin add phonegap-plugin-barcodescanner
$ npm install --save @ionic-native/barcode-scanner

步骤2：安装Facebook插件：（使用下面的facebook插件版本）

ionic cordova plugin add cordova-plugin-facebook4@1.7.4 --variable APP_ID="****" --variable APP_NAME="****"
npm install --save @ionic-native/facebook

步骤3：从以下路径打开文件facebookconnect.xml ： yourapp\\platforms\\android\\app\\src\\main\\res\\values然后在<resources></resources>添加两行

<resources>
  <string name="fb_app_id">***your_app_id***</string>
  <string name="fb_app_name">***your_app_name***</string>
</resources>

第4步：命令： cordova clean允许cordova清洁您的应用

第5步：命令： cordova build -检查cordova构建您的应用

第6步：命令： ionic cordova build android应用

Answer 2

更改所需的Facebook插件版本可以为我解决此问题。

ionic cordova plugin add cordova-plugin-facebook4@1.7.4 --variable APP_ID="" --variable APP_NAME=""