1. Getting JavaScript errors or no response with Virtue Mart when clicking on Add, Apply or Cancel button?
(Joomla! Tutorials/Joomla! Tutorials)

... it has to do with the readfile php function.    Error: invalid regular expression flag v Source File: http://joomla/components/com_virtuemart/fetchscript.php?gzip=0&subdir[0]=/themes/default&file[0]=theme.js&subdir[1]=/js&file[1]=functions.js&subdir[2]=/js/admin_menu/js&file[2]=virtuemart_menu.js&subdir[3]=/js/admin_menu/js&file[3]=nifty.js&subdir[4]=/js/admin_menu/js&file[4]=fat.js&subdir[5]=/js/extjs2&file[5]=yui-utilities.js&subdir[6]=/js/extjs2&file[6]=ext-yui-adapter.js&subdir[7]=/js/extjs2&file[7]=ext-all.js ...

2. Warning: Invalid argument supplied for foreach() in /components/com_comprofiler/plugin/user/plug_cbcore/cb.core.php on line 240
(Joomla! Tutorials/Joomla! Tutorials)

Question: I get the following error  "Warning: Invalid argument supplied for foreach() in /components/com_comprofiler/plugin/user/plug_cbcore/cb.core.php on line 240" when trying to edit my Community Builder ...

3. XML Parsing Error at 1:1. Error 4: Not well-formed (invalid token) when installing a Joomla! module
(Joomla! Tutorials/Joomla! Tutorials)

What to do if you receive the following error "XML Parsing Error at 1:1. Error 4: Not well-formed (invalid token)" when installing a Joomla! module. Explanation: The files in the module have been zipped ...

4. Warning: Invalid argument supplied for foreach() in /public_html/components/com_comprofiler/plugin/user/plug_cbcore/cb.core.php on line 240
(Joomla! Tutorials/Joomla! Tutorials)

If you get the error message Warning: Invalid argument supplied for foreach() in /public_html/components/com_comprofiler/plugin/user/plug_cbcore/cb.core.php on line 240 when using Community Builder together ...

5. JHTMLform not supported. Invalid Token.
(Joomla! Tutorials/Joomla! Tutorials)

After you upgraded from Joomla! 1.5.0 to 1.5.2/1.5.3 you receive the error message JHTMLform not supported. Invalid Token. when trying to login to the backend. Or when trying to fill in a form or login ...