BluetoothManager.framework suddenly fails

I just updated the Xcode, but I don't know if it's because of that, but I'm having trouble getting a build error after that.It's like this.
'BluetoothManager/BluetoothManager.h' file not found
In fact, go to Link binary with library in the Build phase
When I try to add BluetoothManager.framework again,
I'm not going to be a candidate for additionally.
How can I revive this?