[TYPO3] Strange Warning: Invalid argument supplied for foreach() in...

[Tapio Markula]

Katja Lampela kirjoitti:
> Thank you Dmitry.
> But no more lines there, only the one.
> 
> 
>>
>> Can you post several lines before and after this line? This may or 
>> many be not a serious issue, difficult to say without seeing code.
>>
>>> Everytime I hit "Clear FE cache" the error disappears and stays away 
>>> until I hit the "Clear cache..." again.
>>
>> This happens because such errors are visible only when page is first 
>> generated. After page is generated, it goes to cache and lots of code 
>> is not executed. It seems that code with error is not executed as 
>> wellwhen page is cached.
>>

have you looked where in the ext_tables.php of 'julle_diffformmailrcp'
is foreach loop. If it is there the file should be fixed.

apparently line *2675* relates with the section, which has included 
ext_tables.php of 'julle_diffformmailrcp'