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

Solution 1:

MAMP Folks just posted the workaround

Workaround for the 10.10 Preview 5 bug: Rename the file “envvars” located in /Applications/MAMP/Library/bin into “_envvars”

Test Update: It works!

Works for Yosemite release too!

Solution 2:

Just found workaround from MAMP on Twitter

Workaround for the 10.10 Preview 5 bug: Rename the file “envvars” located in into “_envvars”