This error appears when you attempt to set an on-chip breakpoint that is not supported by the processor’s on-chip debug hardware in the current system state or architecture.

In other words, the requested breakpoint type cannot be provided by the hardware resources available on your target.

In the Break.List window, the breakpoint will be shown in red.

If you try to resume execution, you will see the error “breakpoint configuration invalid.” To resolve the issue, simply remove the unsupported breakpoint.

For details on which breakpoint types are supported, please consult the Processor Architecture Manual of your target architecture (see main.pdf > Processor Architecture Manuals).