Compiling error : Unknown file extension ' '

I am compiling a file that contains a caller block, and that c caller block is calling c file that have many header files included. But while compiling its giving error Unknown "file extension ' ' ". Can anyone tell me how to solve this one?

[Fangjun Jiang]

That message indicates the file extension is a whitespace. Check if there is any file name that might be accidently inserted a whitespace in its extension.

[AKHILA]

Checked that one, but no file is having whitespace in its extension.

[Aravind]

Hi,

Can you share your files or maybe some reproduction steps for this error?

[AKHILA]

HI, I can't share file, but this are the files for blinking an led using stm board.