Symptom

 When using one of the Search Actions in an Integration and using Regular Expressions for the search method, you receive the following warning in your logs:

Environment

 BarTender 2016 and later Integration

Fix/Answer

BarTender uses % to denote variables in Integrations. The Command script uses two of these, %BTW% and %END%. If your Regular Expression (regex) contains two %, BarTender interprets whatever's between them as a variable and may throw a warning: "Unable to apply transform because search criteria has one or more unresolved names."

Using Wildcards

If possible, try to avoid using two %. If you must two % symbols, you can use the dot wildcard character in place of the %.

The script in the warning message above, you can remove one of the % symbols and the regex will work properly:

(%BTW[\s\S]*\/AF=")|(" \/PRN[\s\S]*)

Another example is if you have an expression like this:

(%BTW[\s\S]*END%)\u000D\u000A

BarTender believes anything between these two % symbols is a variable name, and this would be an illegal name for a variable thus the warning.

To correct this regex, you can use the dot wildcard:

(.BTW[\s\S]*END.)\u000D\u000A

Telling BarTender to not use variables

The simplest method is to uncheck the variable checkbox on the action: