User Guide

MPLAB
®
PICkit™ 4 USER’S GUIDE
 2018 Microchip Technology Inc. DS50002751C-page 39
Chapter 6. Error Messages
6.1 INTRODUCTION
The MPLAB PICkit 4 In-Circuit Debugger produces many different error messages;
some are specific and others can be resolved with general corrective actions. In
general, read any instructions under your error message. If these fail to fix the problem
or if there are no instructions, refer to the following sections.
• Types of Error Messages
• General Corrective Actions
6.2 TYPES OF ERROR MESSAGES
6.2.1 Debugger-to-Target Communication Errors
Failed to send database
If you receive this error:
1. Try downloading again. It may be a one-time error.
2. Try manually downloading the highest-number
.jam file.
If these fail to fix the problem or if there are no instructions, see
Section 6.3.2 “Debugger-to-Target Communication Error Actions”.
6.2.2 Corrupted/Outdated Installation Errors
Failed to download firmware
If the Hex file exists:
• Reconnect and try again.
• If this does not work, the file may be corrupted. Reinstall MPLAB X IDE.
If the Hex file does not exist:
• Reinstall MPLAB X IDE.
Unable to download debug executive
If you receive this error while attempting to debug:
1. Deselect the debugger as the debug tool.
2. Close your project and then close MPLAB X IDE.
3. Restart MPLAB X IDE and re-open your project.
4. Reselect the debugger as your debug tool and attempt to program your target
device again.