System.InvalidOperationException expect model 'A' but received model 'A' issue in 1.8

[tranthanhvan]

Hi theres. I have encounted problem that I really can't understand.

CS code is very simple :
await RazorTemplateEngine.RenderAsync(viewName, viewModel);

that code above throw exception say : "The model item passed into the ViewDataDictionary is of type 'Miscellaneous.MiscellaneousInvoiceViewModel', but this ViewDataDictionary instance requires a model item of type 'Miscellaneous.MiscellaneousInvoiceViewModel'."

However the problem does not occur immediately when the application starts. which will happen sometime later (1 month, 2 months after). Means when the application has been running for a while. And until when i restart the app, everything is normal again.

I also find out case the same problem in there. But i am not have RazorTemplateEngine.Initialize() in my code.

I would be very grateful if you could help

[soundaranbu]

Hey @tranthanhvan, that's interesting. I assume this may be a runtime issue as it happens overtime but not immediately. Also, I'm not sure if this is specific to your application in the way it's configured and deployed. What's your .NET version? I assume it's >= .NET 6? If so, could you please update to the latest version of the library (2.1.0) and the .NET version (if possible) and see if the issue reoccurs? In the meantime, I'll also try to dig into this to find the root cause.