While creating first application as tutorial says after running % YiiRoot/framework/yiic webapp WebRoot/testdrive command I got error message out of memory (allocation of memory is not enough). Does anyone knows what is a minimum for Yii to create webpage?
Can you try the requirements page that is bundled with Yii? Maybe it can give you a hint regarding your problem. Also you may run phpinfo() or check your php.ini regarding max memory site php can consume.