java - 具有 AWS 分析集成的 Android 应用程序无法读取 awsconfiguration.json

Question

我正在学习教程 here

我只是想感受一下 Android 开发和 AWS 集成。我在 this guide 之后设置了基本的 helloworld Android 应用程序.然后继续在第一个链接中添加 AWS 组件。

当我到达“监控分析”部分时，我的项目将构建但在运行时抛出异常。

异常情况如下:

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xx.xxxx.wearables_data_receiver.app/com.xx.xxxx.wearables_data_receiver.feature.MainActivity}: java.lang.RuntimeException: Failed to read awsconfiguration.json please check that it is correctly formed.
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
    at android.app.ActivityThread.-wrap11(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:148)
    at android.app.ActivityThread.main(ActivityThread.java:5417)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
 Caused by: java.lang.RuntimeException: Failed to read awsconfiguration.json please check that it is correctly formed.
    at com.amazonaws.mobile.config.AWSConfiguration.readInputJson(AWSConfiguration.java:99)
    at com.amazonaws.mobile.config.AWSConfiguration.<init>(AWSConfiguration.java:83)
    at com.amazonaws.mobile.config.AWSConfiguration.<init>(AWSConfiguration.java:68)
    at com.amazonaws.mobile.config.AWSConfiguration.<init>(AWSConfiguration.java:45)
    at com.amazonaws.mobile.client.AWSMobileClient.initialize(AWSMobileClient.java:155)
    at com.xx.xxxx.wearables_data_receiver.feature.MainActivity.onCreate(MainActivity.java:51)
    at android.app.Activity.performCreate(Activity.java:6237)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
    at android.app.ActivityThread.-wrap11(ActivityThread.java) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5417) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
 Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x0
    at android.content.res.Resources.getValue(Resources.java:1351)
    at android.content.res.Resources.openRawResource(Resources.java:1265)
    at android.content.res.Resources.openRawResource(Resources.java:1241)
    at com.amazonaws.mobile.config.AWSConfiguration.readInputJson(AWSConfiguration.java:88)

行:

at com.xx.xxxx.wearables_data_receiver.feature.MainActivity.onCreate(MainActivity.java:51)

指向第一个链接中教程中的“AWSMobileClient.getInstance().initialize”调用:

AWSMobileClient.getInstance().initialize(this, new AWSStartupHandler() {
        @Override
        public void onComplete(AWSStartupResult awsStartupResult) {
            System.out.println("AWSMobileClient is instantiated and you are connected to AWS!");
        }
    }).execute();

我不确定这里发生了什么，我试过打开文件权限，并将它放在几个不同的目录中，但无济于事。任何帮助将不胜感激。

Answer 1

错误是由于缺少 awsconfiguration.json 文件造成的。

 Caused by: java.lang.RuntimeException: Failed to read awsconfiguration.json please check that it is correctly formed.

您能否确保将 awsconfiguration.json 文件放置在 res/raw 目录中并且具有有效的 json？如果您使用 Amplify CLI 进行设置，它应该始终使用所需信息自动更新 awsconfiguration.json 文件。