Trivial PL/SQL block generating frustrating PLS-00103 error

Question

I may be going a bit insane, but I keep getting a PLS-00103: Encountered the symbol "end-of-file" when expecting one of the following... error. I have pared my program down to the following:

BEGIN
    NULL;
END;
/

Which I am running within AquaData Studio.

This produces:

• [Error] Script lines 1-2 ... ORA-06550: line 2, column 8:
• PLS-00103: Encountered the symbol "end-of-file" when expecting one of the following...; Script line 2, statement line 2, column 8

I write a decent amount of PL/SQL and normally the above trivial block runs just fine. What the heck is wrong with what I'm doing?

Answer 1

It turns out the solution was as suggested by @a_horse_with_no_name in his comment. In ADS, you need to open File → Options Ctrl + , (that's a comma!) and set the following options on the General tab:

• ';' Statement separator (make sure it is not ticked)
• '/' at End of Line Terminates Statement (make sure it is ticked)

See screenshot below. Do this, and it all works: