■ The beginning of an IF block is missing. ■ Possible solutions: • Insert the IF keyword at the beginning of the IF...ENDIF structure. • Check other control structures within the IF...ENDIF block to verify that they are correctly matched. For example, a nested IF block without a matching END IF inside the outer IF...END IF block generates this error. ■ If you need additional help, move the cursor to a keyword and press F1 to open the Help window.