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Exception : Cannot find a style with this istd

Hi Tahir,

I saw the same issue “Cannot find a style with this istd.” while copying one section of Aspose word document to a another Aspose word document. Even though I upgraded to latest version (18.20) Aspsoe.Words.DLL no chaneg in the output.
Please find the attached screenshots of the error and the line we got the error…

Exception_Message.png (11.0 KB)
Line at error occured.png (7.2 KB)
LatetsVersion 18.2.png (31.9 KB)

Please help me in solving the issue.



Thanks for your inquiry. To ensure a timely and accurate response, please attach the following resources here for testing:

  • Your input Word documents.
  • Please create a standalone console application (source code without compilation errors) that helps us to reproduce your problem on our end and attach it here for testing.

As soon as you get these pieces of information ready, we’ll start investigation into your issue and provide you more information. Thanks for your cooperation.

PS: To attach these resources, please zip and upload them.

Thank you, @tahir.manzoor for your reply.

Here is the attachment with the solution to reproduce.
Please add Aspose.Words DLL version in bin folder. (322.8 KB)

Please let me know for any clarification or help.

Thanks in advance.


Thanks for sharing the detail. We have tested the scenario and have managed to reproduce the same issue at our side. For the sake of correction, we have logged this problem in our issue tracking system as WORDSNET-16456. You will be notified via this forum thread once this issue is resolved.

We apologize for your inconvenience.

The issues you have found earlier (filed as WORDSNET-16456) have been fixed in this Aspose.Words for .NET 18.4 update and this Aspose.Words for Java 18.4 update.