MAMP Pro 3.05 on Mavericks updated to Yosemite - Apache does not start

Question

I have been running MAMP Pro 3.05 successfully in Yosemite up to DP4 on a partition that was a clean install of Yosemite.

I now have run the installer for DP5 over m

Answer 1

Today, I upgraded to MAMP Pro 3.0.7.3 after I upgraded to OSX Yosemite 10.10 (official release) and I experienced this same problem. Apache could not start and it has an empty log file.

I tried this fix, but I noticed that the file is named "envvars_" not "envvars". I renamed it to envvars, restarted MAMP Pro and apache could not start and it had an empty log file. I also noticed that the envvars file had been renamed to envvars_ after I had renamed it.