App Inventor unknown Run Time error

I am trying to connect app inventor and micro:bit. This error keep on appearing but I do not understand what is it about and where to locate the error to be corrected.

Anyone have any advice?

What companion are you using? Android or iOS?

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Did you set the BluetoothDevice property of the Microbit_Accelerometer1 component to the BluetoothLE1? The error in question is usually caused by not having established the relationship between the component and the BLE providing the connection to the device.

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android 10

Did I missed anything? i suppose I should have done in coding, Pls kindly tell me if I need other blocks,

See below

image

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I find it. Thanks a lot! I will try a few hours later.

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