Any Ideas? PHP warning: array_merge(): Argument #1 is not an array

Recently I've been getting this error.

(ERROR @ /home/mysite/core/model/modx/modcontext.class.php : 128) PHP warning: array_merge(): Argument #1 is not an array

Does anyone know what this means or where I should start looking for debugging?

I've recently installed some cache management extras to try and improve performance, so maybe that's it.

Any ideas?

Thanks

Any idea what you're doing when that error occurs? That's in the modContext object's getOption() method. It could be called from a lot of different places. It looks like someone is calling it at a time when the context object has not been prepared for use.


FYI, E_NOTICE errors should be turned off on a production site.

Quote from: BobRay at Apr 14, 2015, 11:16 PM

Any idea what you're doing when that error occurs? That's in the modContext object's getOption() method. It could be called from a lot of different places. It looks like someone is calling it at a time when the context object has not been prepared for use.


FYI, E_NOTICE errors should be turned off on a production site.

Just accessing a document and saving it.

In fact just opening any doc will record the error.

It's exactly the same error all the time.

It's not affecting the front end in any way that I can see.

And it's not a production site.

Sorry, I didn't realize it was a dev. site.

It's almost certainly a plugin that's causing the problem -- most likely connected to OnDocFormRender or OnDocFormPrerender. If you disable them one by one (starting with the most recently installed), you should be able to figure out which one.