The following attributes are deprecated and should not be used anymore:
[VAR_INPUT]
[VAR_IN_OUT]
[VAR_OUTPUT]
[FUNCTION_BLOCK]
[FUNCTION]
[PROGRAM]
You can also use the provided automatic Code Fix to replace the attributes with the new equivalents. ( Press Alt + Enter on the Error line to find the Code Fix in the context menu)
Replace the attributes with their new equivalent:
[VAR_INPUT]
-->[Input]
[VAR_IN_OUT]
-->[InOut]
[VAR_OUTPUT]
-->[Output]
[FUNCTION_BLOCK]
-->[FunctionBlock]
[FUNCTION]
-->[Function]
[PROGRAM]
-->[Program]