[FAQ] CCS: What does the debugger message "Can't find a source file at" or "No source available" mean?

The message means that the debugger is unable to find the specified source file for source level debug. This is common when the debugger is halted within a library, like the C runtime library, driverlib, etc. The message itself is harmless but please take look at this link for more details about the message and how to avoid it.

https://software-dl.ti.com/ccs/esd/documents/users_guide/ccs_debug-main.html#debugging-library-code