CoreBluetooth XPC Connection Invalid on dismiss viewcontroller

Question

After I have finished disconnecting from my bluetooth devices, seeing that they have disconnected in the didDisconnectPeripheral delegate, I attempt to dismiss my viewcontroller.

When this happens I see the message: "[CoreBlueooth] XPC Connection Invalid"

Is there something in specific that has to be cleaned up with Bluetooth before the viewcontroller is dismissed?

Answer 1

I placed CBCentralManager to a singleton and the error message is solved.

(CBCentralManager will not be deallocated)

Answer 2

I was getting the following message:

[CoreBlueooth] XPC Connection Invalid

And I wasn't able to scan BLE devices using a quite simple implementation of the following:

NSObject<CBCentralManagerDelegate, CBPeripheralDelegate>

The solution for me was to add a value in my Info.plist for Privacy - Bluetooth Peripheral Usage Description NSBluetoothPeripheralUsageDescription describing what I do with Bluetooth Peripheral.

Looks like this in info.plist:

<key>NSBluetoothPeripheralUsageDescription</key>
<string>Play with BLE Compatible devices<string>

Write something more accurate in here ;)