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Document Conversion API SetLicense Issue in C# .NET 6

After upgrading to .NET 6 the new GroupDocs.Conversion.License().SetLicense failed with the following message: Could not load file or assembly ‘Aspose.Cells, Version=, Culture=neutral, PublicKeyToken=716fcc553a201e56’. General Exception (0x80131500).

The GroupDocs.Conversion Nuget package version we use is 21.8.0. We also tried the latest version 21.10.0, but it also throws an error during the SetLicense.

Anyone who knows what we are doing wrong? Do we need a new license?

Any help in this is welcome,
Regards Wiel

1 Like


We are investigating this scenario. Your investigation ticket ID is CONVERSIONNET-4978. We’ll notify you in case of any update.

Is there any news about this issue?


This issue is set to be investigated in API version 21.12. You’ll be notified about the further updates.

Is there an ETA for the release of version 21.12? This compatibility issue with .NET 6 is now blocking a number of critical items on our development paths.


The issue is still under investigation. However, we’ll soon share the ETA.


Your reported issue CONVERSIONNET-4978 is fixed in API version 22.1. As release gets on-board you’ll be notified.