If one attempts to open a document from Kmenu history, there is an error: Could not find any application or handler for </path/to/file>. However, if one right clicks said document from KMenu history and selects an application from the 'open with:' option list, the document opens without an error.
Steps to Reproduce:
1. Open a document, which could be a text file, pdf document, image file, etc.
2. Close the file, then go to KMenu history or recently opened files and click said file.
Could not find any application or handler for </path/to/file>
The document should open using its default application.
This bug was confirmed on openSUSE Tumbleweed (20160526), Kubuntu 16.10, and by another individual running Linux from scratch; all the systems are running Plasma 5.6.4.
*** This bug has been marked as a duplicate of bug 363337 ***