What is it you are deleting - which 'caches'? How are you trying to delete?
I deleted my home/library/caches/Adobe/TypeSupport and com.adobe.dreamweaver-11.5. I'm trying to delete files and folders from the DW Files List Local View. I select the file or folder in the Local View List and then I press the delete key. First few times deleting works, then it does not.