无法解析主机 "api.backendless.com":没有与主机名关联的地址

Unable to resolve host "api.backendless.com": No address associated with hostname

刚刚尝试 运行 教程,我收到了这个错误。我只是不明白哪里出了问题。我在我的应用程序 class 中使用 initApp,可能是问题所在?

有什么建议吗?

public class App extends Application {

@Override

public void onCreate() {

super.onCreate();    
String appVersion = "v1";

Backendless.initApp( this, getString(R.string.backId), getString(R.string.backSecretKey), appVersion );
    }
}
BackendlessUser user = new BackendlessUser();    
user.setEmail( "michael@backendless.com" );    
user.setPassword( "my_super_password" );

Backendless.UserService.register( user, new BackendlessCallback<BackendlessUser>()    
{

@Override

public void handleResponse( BackendlessUser backendlessUser )    
{

Log.i( "Registration", backendlessUser.getEmail() + " successfully registered" );    
}    
} );

可能是您忘记在清单文件中授予互联网权限。请在清单文件中添加以下权限。

<uses-permission android:name="android.permission.INTERNET" /> 
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />