Answering a related post in this thread pertaining to a critical error when trying to run Krita:

I installed krita and calligraflow onto my Linux Mint 17.1 Cinnamon, 'Rebeccaa' ed and received the same critical error when trying to run either application:

Essential application components could not be found.
This might be an installation issue.
Try restarting, running kbuildsycoca4.exe or reinstalling.

What finally worked for me:

mkdir -p ~/.kde4/env
cd ~/kde4/env
gedit env.sh

Paste:
export KDEDIRS=$HOME/kde4/inst:$KDEDIRS
export PATH=$HOME/kde4/inst/bin:$PATH
and save

Installed:

kdelibs-bin
kdelibs5-data
kdelibs5-plugins

I have the same issue & i want the solution. Can anyone help me?