Previously I'd tried using the OS X tutorial on the Concrete5 site to install Concrete5 on OS X Leopard using MAMP Pro. But I couldn't get it to install.

With Concrete 5.3 and MAMP however, I'm starting to get further - at least I'm getting specific PHP errors which I'm hoping someone here will help me understand and fix them.

After giving the concrete directory inside MAMP read/write access (as described in the tutorial) the setup screen loads but with an error: "You must chmod 755 concrete/libraries/3rdparty/htmldiff.py and disable PHP safe mode."

I've checked the php.ini file at: MAMP/conf/php5/php.ini and it clearly states that PHP safe mode is off.

If I follow the tutorial exactly, which doesn't say to chmodd the file (in the tutorial screen shot you can see the yellow exclamation icon) I get the following error after hitting install:

"Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 4864 bytes) in /Applications/MAMP/htdocs/concrete/concrete/models/file_set.php on line 22"

Line 22 in the file_set.php file is:

public function getGlobal() {
$fs = new FileSet;
$fs->fsID = 0;
return $fs;
}

If I then start again (delete the concrete database and replace the concrete folder) and run chmod 755 on the htmldiff.py file, I get the following error after hitting install:

"Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 4864 bytes) in /Applications/MAMP/htdocs/concrete/concrete/helpers/concrete/file.php on line 147"

Line 147 in the file_set.php file is:

public function unSerializeUploadFileExtensions($types){
//split by semi-colon
$types = preg_split('{;}',$types,null,PREG_SPLIT_NO_EMPTY);
$types = preg_replace(self::REGEX_INVALID_EXTENSION_CHARS,'',$types);
return $types;
}

I've tried this 3 times (each time deleting the database and starting again) but the exact same errors occur. Has anyone managed to get concrete5 up and running under OS X Leopard using MAMP?

Any help would be much appreciated.

Cheers