Error at char (13) : Unknown variable

[SH_94]

Hi Community,

I would like to ask how can we fix the error as per screenshot below :

Appreciate your kind assistance on this matter.

Thank you.

[danilang]

Hi @SH_94 

Either you're not using the same input as when the workflow was developed or the fields are the result of an operation that happens upstream, either a Download tool, Python, R tool or a Cross Tab.   Since the fields aren't generated until the workflow runs, you'll get this error when you open the workflow, but before you run it.  

Do the errors go away after the workflow is run?

Dan

[atcodedog05]

Hi @SH_94 

In simple terms columns which were there before is currently missing in the data. You might want to check data before formula tool and make sure they are present. 

Hope this helps : )