I get error "STOR: command failed error 426 File System error" during distribution. What am I am doing wrong?

I get error "STOR: command failed error 426 File System error" during distribution. What am I am doing wrong?

netSCADA devices support no long file names and the internal file system works in accordance to MS-DOS file name convention 8.3. This allows to use a name of 8 characters plus 3 characters extension only.

If your included file does not match this convention you have to remove if from ativse library, rename it and include it again into the library.