Compiler Error C0077

Message: Unknown type: '<data type>'

Possible error cause: Invalid data type in the declaration (maybe a syntax error)

Error correction: Specify valid data types only.

Example of the error:

PROGRAM MAIN
VAR
    i : INTEGER;
END_VAR

Message:

C0077: Unknown type: 'INTEGER'

Error correction:

PROGRAM MAIN
VAR
    i : INT;
END_VAR