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All bazor controls crash the website

Hi Guys,

I've just republished with yesterdays Nuget update, now all syncfusion controls crash my website with the follwing error:

[2020-10-21T09:50:54.130Z] Error: System.NullReferenceException: Object reference not set to an instance of an object.
at Syncfusion.Blazor.Internal.ResourceManager.IsIE()
at Syncfusion.Blazor.Internal.ResourceManager.BuildRenderTree(RenderTreeBuilder builder

Note that this does not happen running on IIS locally, but does happen on Azure. It was all working fine before Nuget update so I'm pretty sure that's the cause.

6 Replies 1 reply marked as answer
RH Ralph Hope October 22, 2020 08:01 AM UTC

Never mind -- fixed it -- was missing the script in the <head> in _hosts.  Wasn't needed before, but guess it is now.  No idea why that meant it ran on IIS but not azure, but nevermind! :)


RH Ralph Hope October 23, 2020 09:00 AM UTC

This seems to be a duplicate of this https://www.syncfusion.com/forums/158913/azure-web-service-issue-with-v18-3-0-x

As I noted in the other thread, you couldn't reproduce the error on xx.xx.x.40, however thats not surprising as x.40 works.  The bug is on the latest patch x.42

MK Muthukumar Kannan Syncfusion Team October 27, 2020 03:03 PM UTC

Hi Ralph,

Sorry for the delayed update.

We have resolved your reported Null Reference issue and the fix has been included in the latest v18.3.0.44 package and available now in live. So, we would suggest you to upgrade the 'Syncfusion.Blazor' package to the latest version v18.3.0.44 and check again whether your reported issue is fixed or not.

https://www.nuget.org/packages/Syncfusion.Blazor/18.3.0.44

Please get back to us if you need any further assistance.

Regards,
Muthukumar K

RR Rija Rabe October 30, 2020 05:43 AM UTC

Hello,

I have the same issue (it seems) even with 18.3.0.44.

When running with Visual Studio debugger, it works fine. But when deployed to IIS, it returns this error when I tried to open a page where synfusion blazo controls are implemented :

Object reference not set to an instance of an object. at Syncfusion.Blazor.Internal.ResourceManager.IsIE()

Please give advice.

Regards!

MK Muthukumar Kannan Syncfusion Team November 5, 2020 05:47 PM UTC

Hi Rija, 

Currently, we are validating your reported issue for 'IIS with syncfusion blazor package'. However, we will update the further details in two business days( November 9th, 2020 ).

Until then we appreciate your patience.

Regards,
Muthukumar K


MK Muthukumar Kannan Syncfusion Team November 23, 2020 10:04 AM UTC

Hi Ralph / Rija,

Thanks for your patience.

We want to let you know that the reported issue was resolved, and the fix included in the v18.3.0.48 package. So, we would suggest you upgrade the syncfusion blazor package to 18.3.0.48 or later versions.

Kindly let us know if you have any concerns.

Regards,
Muthukumar K

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