Are my Magento permissions correct?

I have a fresh install of Magento 1.4.1.1 using MAMP 1.8.4 on OS X Snow Leopard 10.6.4.

I'm unable to load magento/downloader (the Magento Connect Manager) successfully. My browser displays a blank white page. Safari's Activity window tells me it's an Internal Server Error, which tells me my permissions may be incorrect. I have changed all file permissions for the entire magento directory to 777 to test whether the directories/files had sufficient privileges. I'm still unable to load Magento connect (magento/downloader/).

Would setting all files to 777 be a sufficient way to test correct permissions? Anyone encountered开发者_Go百科 this problem before?

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Have you checked that your MAMP server meets the requirements, have you turned on PHP error_reporting and scanned the logs for errors? Turned on Magento's logging and developer mode? Try posting the results of those so we can help you.

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The problem was that the include_path in my php.ini file was wrong. The path should be:

.:/Applications/MAMP/bin/php5/lib/php

I had previously installed the Zend Framework and forgot about it. Part of the setup process of ZF, I believe, is to change or modify your include_path. If I would have erased and re-installed MAMP, it would have solved the problem as well.

Thanks, Jonathan, for your input.