Show Diff Errors

Hello


We have recently installed 3.12 and when trying to us the 'Show Diff' feature on a page preview, Matrix is throwing back these PHP errors. Seems to be related to file includes.



Any ideas how to fix this?



Errors above the header:





PHP Warning

main(Text/Diff/Renderer.php) [function.main]: failed to open stream: No such file or directory





PHP Warning

main() [function.include]: Failed opening 'Text/Diff/Renderer.php' for inclusion (include_path='.:[SYSTEM_ROOT]/php_includes:/usr/lib/php')





PHP Warning

main(Text/Diff/Renderer/inline.php) [function.main]: failed to open stream: No such file or directory





PHP Warning

main() [function.include]: Failed opening 'Text/Diff/Renderer/inline.php' for inclusion (include_path='.:[SYSTEM_ROOT]/php_includes:/usr/lib/php')



Errors within the body:



Fatal error: Class matrix_diff_highlighter: Cannot inherit from undefined class text_diff_renderer_inline in /var/www/mysource_matrix_312/core/assets/designs/design_areas/design_area_body/matrix_diff_highlighter.inc on line 37

You need to install the Text_Diff PEAR package.

Thanks for that, will give it a go.