I can't edit some of my posts with wp 2.6.
I get this message when I try to use the edit page:
Warning: main(Text/Diff/Renderer.php) [function.main]: failed to open stream: No such file or directory in [path to my site]/wp-includes/Text/Diff/Renderer/inline.php on line 17
Fatal error: main() [function.require]: Failed opening required 'Text/Diff/Renderer.php' (include_path=[path to my site]/include:.:/usr/php4/lib/php') in [path to my site]wp-includes/Text/Diff/Renderer/inline.php on line 17
It seems to happen only when I've added an image to the post via the media uploader. I haven't modified any of the wp files, and it didn't happen with 2.5. I've done the upgrade by the book, but maybe I've done something wrong?
Thanks for any help you can give me.