Oracle Message PCB-00402 - Pseudo-text not properly terminated

ERRORPseudo-text not properly terminated
CAUSEA block of pseudo-text has not been properly terminated with ==.
ACTIONTerminate the pseudo-text at the appropriate place with ==. 500 - 649, Other semantic errors grouped by these features: threads, result set cursors, miscellaneous, pl/sql (includes arraylen), exec tools and lobs.