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TestComplete 9, Checkpoint wizard got "A new guard page for the stack cannot be created."

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TestComplete 9, Checkpoint wizard got "A new guard page for the stack cannot be created."


I'm using TestComplete 9.20.02460.7 

Windows 7 sp 1, cpu intel Core i7

ram 8GB


I have a problem while using Checkpoint function on TestComplete 9 

when I select any control such as DataGridView, TreeView, Ribbon menu, Scrollable control etc. (but did not happen all controls)

I got error message "A new guard page for the stack cannot be created."

and my application will terminate.

(see more on attach clip)


I tested with version 12 (trial) not found problem.


thank you for advice



Best regards


Esteemed Contributor

What technology is used in the development of your application under test? It's entirely possible that some of the tech may not be compatible with TC 9.

Robert Martin
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Why automate?  I do automated testing because there's only so much a human being can do and remain healthy.  Sleep is a requirement.  So, while people sleep, automation that I create does what I've described above in order to make sure that nothing gets past the final defense of the testing group.
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Mysterious Gremlin Master
Vegas Thrill Rider
Extensions available

My windows app develops
using C# .net framework 4.0
on vs2017


Google has many references for that error


Looks like you have something causing a stack overflow in your app


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