Compilation Errors and Warnings
Compile errors
Survey Solutions Designer conducts analysis of your questionnaire for many common problems and design errors. The following table summarizes the messages issued by the Designer when the questionnaire is compiled.
Some of these messages indicate a situation of an error, where the current
questionnaire is invalid and may not be used for data collection until the
indicated problem is fixed. For example, these are the syntax errors in
expressions (see WB0002 or WB0003 below) or duplication of identifiers of
variables (WB0026), and other similar problems.
Circular references
Circular references is a computational problem, which cannot be resolved by a computer because it has no logical beginning and end, for example: Enable question Q1 if question Q2 is enabled, and enable question Q2 if question Q1 is enabled.
In this example each of the questions Q1 and Q2 depends on each other, and there is no way to establish whether both should be asked or none at all.
April 2, 2018