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[WorkflowExecution.Semantic.Error] Semantic error(s) found.

  • November 5, 2025
  • 9 replies
  • 112 views

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I created a workflow using the Nintex Form as a start event. The workflow tested fine at the first attempt; however, subsequent attempts have produced a [WorkflowExecution.Semantic.Error] Semantic error(s) found.  See attached screenshot.

I have used a ‘People’ control and ‘ConvertToString’ form variable to extract the email address from the collection.  This is the variable I have included in the ‘Assign a task to multiple users’ communication action.

Can you assist in identifying the issue?  Not sure if this instance ID will help?

Instance ID:0e3ac5fe-96a0-4061-a390-dd73a09b55fc_0_4

Best answer by SimonMuntz

Hi ​@AdrianGaribdass01,

To resolve this issue, remove the Change Stage action from the Approve branch of the Task Action.
The Change Stage action is used inside a Branch by Stage action only.

9 replies

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Any takers on this question?


SimonMuntz
Nintex Employee
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  • Nintex Employee
  • 2620 replies
  • November 5, 2025

Hi ​@AdrianGaribdass01,

This error is covered in the help files.
https://help.nintex.com/en-us/nwc/content/Dashboard/UpgradeWorkflowstoEnginev2.htm

 

Semantic error(s) found

A workflow definition may contain variables of the same name.

To fix the error, edit the task form to use unique variable names, and then republish the workflow.

 

Does that help?

 

 


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Thanks for the response.  I checked my variables and they appear to be unique to each other.  I shortened the variable title to see if it changes anything and no.  Is there a limit to the number of variables and rules that can be created per form?  I created 37 individual form variables and 37 rules for this form. I’m think this may be the issue?


SimonMuntz
Nintex Employee
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  • Nintex Employee
  • 2620 replies
  • November 5, 2025

Hi ​@AdrianGaribdass01,

Unfortunately, there appears to be something wrong with the attachment.
The Nintex Workflow Limits page states that you can have 500 of each variables and rules so that would not be the issue.
https://help.nintex.com/en-US/nwc/Content/Overview/Limits.htm

If the error is occurring in the workflow, what makes you think the form is the issue?


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Because I have used the same steps in extracting the email from the Personal control as a vaariable in other other workflows and using the variable in the Assign a task to multiple users action and it works fine.   Are you able to view the workflow if I share an export key?


SimonMuntz
Nintex Employee
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  • Nintex Employee
  • 2620 replies
  • November 6, 2025

Hi ​@AdrianGaribdass01,

Yes, if you share an export key, I can take a look.
You should be able to attach the workflow zip, so I'm not sure what the issue is here.


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Thank you.

 

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SimonMuntz
Nintex Employee
Forum|alt.badge.img+23
  • Nintex Employee
  • 2620 replies
  • Answer
  • November 6, 2025

Hi ​@AdrianGaribdass01,

To resolve this issue, remove the Change Stage action from the Approve branch of the Task Action.
The Change Stage action is used inside a Branch by Stage action only.


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Simon, 

Thanks for the fix.  You are a star. 😀