Why does the error message "Error 4501:Name exists" appear when opening a project created in PG5 1.3 with PG5 1.4?

FAQ #100579

 

Problem
The error message "Error 4501:Name exists" appears when opening a project created in PG5 1.3 with PG5 1.4. If the symbols are removed the error message disappears

Reason
There is a symbol (p.ex PG) with a name which begins with a space. Spaces are not allowed and PG5 1.4 reacts more sensitive in this case.

Solution
Remove the space from the name and execute a "Clean files"