Ever came across an error in KDE saying “The trash has reached its maximum size! Cleanup the trash manually.” ?

First check the metadata file from the trash folder to see if the size is consistent with its content.

cat ~/.local/share/Trash/metadata  

If it’s not, then do:

rm -rf ~/.local/share/Trash/*  

This will remove the following from the trash folder:

– files
– info
– metadata

Next time you delete something the above file & folders will be re-created & the problem should be solved.