Hamid Fadishei's Blog

September 12, 2010

Joomla! Error: the XML response that was returned from the server is invalid

Filed under: CMS,Joomla!,PHP — fadishei @ 5:36 pm

Many people get this error while they try to install Joomla! content management system. The interesting fact is that the top-in-Google forum thread about this problem, while not addressing the underlying cause properly, is locked and no further replies is possible there. Thus I will share my personal experience in this regard here.

This problem emerges when Joomla! installer can not process the XML response from the server. Many times this occurs when the response is cluttered with warning and notice messages generated by PHP. Therfore my advice is to first revisit your php.ini if you face this error message and make sure that you have the proper settings there. For me, the problem was gone as soon as I changed this line:

error_reporting = E_ALL

to this:

error_reporting = E_ALL & ~E_NOTICE

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