L1923: File \project_Data\Standard\ObjectCode\main.c.o has no DWARF debug info
Without the DWARF stuff, you can't step through code.
All I did was change some source code. I wasn't even messing with the project settings. As a test, I took another working project, copied all my current source from the problem project into the working. It compiles without this DWARF warning.
I tried comparing all the ini files between the two projects but didn't see anything jump out at me.
For now, I'm just going to use that working project's stationary and start over. But anyone have any ideas how to prevent this in the future?
Not sure you have an answer to all your questions here.
When the message "L1923: File \project_Data\Standard\ObjectCode\main.c.o has no DWARF debug info" is generated no debug information will be generated for the specified module (Here main.c). That means you will not be able to set breakpoint in that module.
In order to have debug information generated for your project, make sure there is a dot after each file name in the column with a green bug on it. In order to get the dot there, click with the mouse in the green bug column in the line where the Sources group appear.