MAMP install = blank page

looked around but haven't found anyone else with this problem.
Using latest MAMP install 3.0.7 and tried installing Vanilla 2.1.5 and 2.1.6
After unzipping and placing in proper directory I go there but instead of setup screen all there is a blank white page.
Would turn on bug reproting but the config.php file hasn't been created yet.
0
Comments
temporarily change index.php
https://github.com/vanilla/vanilla/blob/2.1/index.php#L21
to
ini_set('display_errors', 1);
I may not provide the completed solution you might desire, but I do try to provide honest suggestions to help you solve your issue.
thanks I will try this out later and let you know how it went