Font .fnt loaded but no .png File created

Hello there!

Usually, when I import my .fnt files, there is a .png-File in the "Fonter"-Folder created. My watchface shows the time - everything is fine.

I unfortunately ereased those png-Files while figuring something else out.

Now the problem is, that they are not created again from eclipse. As a result, the time is not displayed anymore - but the .fnt-Files are still there.

Cann I force the re-creation of the Font-png-files?