The code execution cannot proceed

I run SITL fairly regularly and as of a week ago the plane code fails to launch. The same is true for multirotor and helicopter, but not rover.

The error: “The code execution cannot proceed because cyggcc_s-seh-1.dll was not found. Reinstalling the program may fix this problem.”

Reinstalling / updating did not fix this problem. Hopefully someone else has experienced this, I have not found any mentions of it pertaining to MP.


Doing a beta update fixed it for me. Otherwise, the offending file can be found in an open source Cygwin installation.

Running beta worked! Thank you!