Compiler Error C0207

Message: There is no system definition for '<identifier>'

Possible error cause: An attempt was made to access a variable in __SYSTEM that does not exist.

Error correction: Check and correct the specified identifier of the respective variable.

Example of the error:

PROGRAM MAIN
VAR
    Value : INT;
END_VAR
Value := __SYSTEM.UnknownVariable;

Message:

C0207: There is no system definition for 'UnkownVariable'