I created an empty page with <favorites editlink=true />
when I had an empty favorites list, and it resulted in Error from line 145 of extensions/Favorites/FavParser.php: Call to undefined method FavParser::msg()
.
Topic on Extension talk:Favorites
Solution
Edit line 145 of FavParser.php:
138 private function showNormalForm( $output, $user ) {
139
140 if ( $this->countFavoritelist($user ) > 0 ) {
141 $form = $this->buildRemoveList( $user );
142 $output .= $form ;
143 return $output;
144 } else {
145 $output = $this->msg('nofavoritelist')->text();
146 return $output;
147 }
148 }
to
145 $output = wfMessage('nofavoritelist')->text();