ANY-maze Help > The ANY-maze reference > The Protocol page > The elements of a protocol > Testing > Procedures > Writing a procedure using the procedure editor > Errors and warnings while writing a procedure > Error: The left-hand side / right-hand side of the operator must be specified

Error: The left-hand side / right-hand side of the operator must be specified

Description

This error is displayed in the list of errors and warnings at the bottom of the procedure editor when using any mathematical, logical or comparison operator that accepts two parameters (i.e. values that the operator will act upon) and one or both of the parameters are missing. This applies to:

 •Maths operators such as +, -, x, /, Mod etc. 
 •Comparison operators such as >, <, = and not = 
 •Logical operators AND and OR  

More information

Everything in an ANY-maze procedure that accepts a parameter (i.e. the thing or things that it operates on) must have all parameters specified. You can't leave any empty 'holes' in any statements of a procedure.

See also:

 •Errors and warnings while writing a procedure 
 •Errors and warnings while running a procedure 
 •Maths functions and operators 
 •Comparison operators 
 •Logical operators 

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ANY-maze help topic T0504