Flutter 附近的连接

当我试图在设备上做广告或发现时，我收到了这个错误.然而，它在前一天的环路上运行得很好:

] PlatformException(Failure, 17: API: Nearby.CONNECTIONS_API is not available on this device. Connection failed with: ConnectionResult{statusCode=INTERNAL_ERROR, resolution=null, message=null}, null, null)      
IGmsServiceBroker.getService failed
    W/GmsClient(20955): java.lang.IllegalStateException
    W/GmsClient(20955):     at android.os.Parcel.createExceptionOrNull(Parcel.java:3031)
    W/GmsClient(20955):     at android.os.Parcel.createException(Parcel.java:3007)
    W/GmsClient(20955):     at android.os.Parcel.readException(Parcel.java:2990)
    W/GmsClient(20955):     at android.os.Parcel.readException(Parcel.java:2932)
    W/GmsClient(20955):     at com.google.android.gms.common.internal.zzac.getService(com.google.android.gms:play-services-basement@@18.1.0:9)
    W/GmsClient(20955):     at com.google.android.gms.common.internal.BaseGmsClient.getRemoteService(com.google.android.gms:play-services-basement@@18.1.0:14)
    W/GmsClient(20955):     at com.google.android.gms.common.api.internal.zabt.run(com.google.android.gms:play-services-base@@18.1.0:7)
    W/GmsClient(20955):     at android.os.Handler.handleCallback(Handler.java:942)
    W/GmsClient(20955):     at android.os.Handler.dispatchMessage(Handler.java:99)
    W/GmsClient(20955):     at android.os.Looper.loopOnce(Looper.java:226)
    W/GmsClient(20955):     at android.os.Looper.loop(Looper.java:313)
    W/GmsClient(20955):     at android.os.HandlerThread.run(HandlerThread.java:67)

请帮帮我.