Sublime Text 2 with stino, compilation gives "filename ... is incorrect" Arduino IDE 1.7.8
Sorry but this is too big for a comment.

Firstly please can you check the obvious, in Windows Explorer paste the path C:\Users\lov\AppData\Local\Temp\Stino_build\t5 into the address bar and does the directory exist. (I have fallen for that so many times)

Secondly do you have permission to create a file there?

Have you updated the IDE? Does blink compile?

Have you tried running the IDE as admin?

Hopefully one of those will fix it.