avr-g++: no such file or directory

All, is it just me, or has this issue been on-going forever. Never, the less, I'm now facing it. I'm upgrading my printer to include a bltouch. The firmware I have doesn't have it, so attempting update to the 2.0.x. All fine and dandy, except my display quit working. At this point I have reverted back to the downloaded 2.0.x. changed ONLY the one like to enable the RepRapDicount Full card. Which causes it to NOT compile. I've tried the suggestion of creating a new compile directory, and putting build.path=xxx in the config file. I've also completely deleted the arduino15 folder, and updated u8glib.
Ramps1.4 board, downloaded both marlin2.0.x, arduino 1.8.12, and the u8glib all today.

I believe the parameters t othe GCC command are exceeding the maximum, causing it to be truncated.
just the last line, was exceeded the limit for posting here.

Using library U8glib_Arduino-master at version 1.19.1 in folder: C:\Users\craig\Documents\Arduino\libraries\U8glib_Arduino-master
exit status 1
Error compiling for board Arduino Mega or Mega 2560.