flutter 阿里云推送Demo初始化不成功

flutter 阿里云推送Demo下载后，修改了appkey和appsecret后运行，初始化失败：deviceId is empty，错误信息如下，
/push-status Fail: errorCode:错误码：PUSH_20101, 错误：deviceId is empty.请检查一下几点：请检查请求的输入参数是否正确;
E/MPS:VipRequestManager( 3459): com.alibaba.sdk.android.push.b.c: deviceId is empty.
E/MPS:VipRequestManager( 3459): at com.alibaba.sdk.android.push.g.g.a(Unknown Source:199)
E/MPS:VipRequestManager( 3459): at com.alibaba.sdk.android.push.g.g.c(Unknown Source:56)
E/MPS:VipRequestManager( 3459): at com.alibaba.sdk.android.push.b.a.f(Unknown Source:4)
E/MPS:VipRequestManager( 3459): at com.alibaba.sdk.android.push.b.a.e(Unknown Source:5)
E/MPS:VipRequestManager( 3459): at com.alibaba.sdk.android.push.b.b$15.run(Unknown Source:8)
E/MPS:VipRequestManager( 3459): at com.alibaba.sdk.android.push.b.b.a(Unknown Source:88)
E/MPS:VipRequestManager( 3459): at com.alibaba.sdk.android.push.b.b.turnOnPushChannel(Unknown Source:8)
E/MPS:VipRequestManager( 3459): at com.aliyun.ams.push.AliyunPushPlugin.initPush(AliyunPushPlugin.java:173)
E/MPS:VipRequestManager( 3459): at com.aliyun.ams.push.AliyunPushPlugin.onMethodCall(AliyunPushPlugin.java:82)
E/MPS:VipRequestManager( 3459): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:262)
E/MPS:VipRequestManager( 3459): at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295)
E/MPS:VipRequestManager( 3459): at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0$io-flutter-embedding-engine-dart-DartMessenger(DartMessenger.java:319)
E/MPS:VipRequestManager( 3459): at io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0.run(Unknown Source:12)
E/MPS:VipRequestManager( 3459): at android.os.Handler.handleCallback(Handler.java:873)
E/MPS:VipRequestManager( 3459): at android.os.Handler.dispatchMessage(Handler.java:99)
E/MPS:VipRequestManager( 3459): at android.os.Looper.loop(Looper.java:193)
E/MPS:VipRequestManager( 3459): at android.app.ActivityThread.main(ActivityThread.java:6737)
E/MPS:VipRequestManager( 3459): at java.lang.reflect.Method.invoke(Native Method)
E/MPS:VipRequestManager( 3459): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
E/MPS:VipRequestManager( 3459): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:860)
D/NetworkSecurityConfig( 3459): No Network Security Config specified, using platform default
I/beacon ( 3459): [fetchByAppKey] result: {"errCode":"OK","result":[{"value":"{\"status\":\"normal\",\"ut\":\"enable\"}","key":"_pushservice"},{"value":"{\"status\":\"normal\",\"ut\":\"enable\"}","key":"_hotfixservice"},{"value":"{\"status\":\"normal\",\"ut\":\"enable\"}","key":"_feedbackservice"},{"value":"{\"status\":\"normal\",\"ut\":\"enable\",\"ip-ranking\":\"enable\"}","key":"_httpdnsservice"},{"value":"{\"status\":\"normal\"}","key":"_cloudcodeservice"}]}
D/MPS:BeaconManager( 3459): parse beacon config
D/MPS:BeaconManager( 3459): beacon key:_pushservice; beacon value:{"status":"normal","ut":"enable"}
D/MPS:BeaconManager( 3459): push configs:{"status":"normal","ut":"enable"}
D/MPS:BeaconManager( 3459): is report enabled:enable
D/MPS:BeaconManager( 3459): beacon key:_hotfixservice; beacon value:{"status":"normal","ut":"enable"}
D/MPS:BeaconManager( 3459): beacon key:_feedbackservice; beacon value:{"status":"normal","ut":"enable"}
D/MPS:BeaconManager( 3459): beacon key:_httpdnsservice; beacon value:{"status":"normal","ut":"enable","ip-ranking":"enable"}
D/MPS:BeaconManager( 3459): beacon key:_cloudcodeservice; beacon value:{"status":"normal"}
D/MPS:httpClient( 3459): responseCode: 200