7.2.3 Debugger to Computer Communication Error Actions

If the MPLAB ICD 4 In-Circuit Debugger and MPLAB X IDE are not communicating with each other.

1. Unplug and then plug in the debugger.
2. Reconnect to the debugger.
3. Try the operation again. It is possible the error was a one-time event.
4. The version of MPLAB X IDE installed may be incorrect for the version of firmware loaded on theMPLAB ICD 4 In-Circuit Debugger. Follow the steps outlined in section Corrupted Installation Actions.
5. There may be an issue with the computer USB port. See section USB Port Communication Error Actions.