SkinManagerExtension shows as invalid markup extension type in XAML editor

I'm using the SfSkinManager component in my project and I've noticed that when I set a theme in XAML, the editor marks "SkinManagerExtension" as an invalid markup extension type as shown in the screenshot below.  The project builds and runs without any errors, so this isn't a showstopping issue.

Edit:  I forgot to mention I'm using Visual Studio 2019 and .NET 5.


9 Replies 1 reply marked as answer

VR Vijayalakshmi Roopkumar Syncfusion Team March 11, 2021 12:08 PM UTC

Hi David  
 
Thank you for using our Syncfusion products. 
 
We have checked the reported behavior with SkinManager using our simple sample and observed that SkinManagerExtension is correctly referred at our end. We are unable to suspect what might cause this at your end. Please find the sample for your reference below: 
 
 
So kindly make sure all assemblies are correctly referred in your application and also let us know whether you set Specific version as false for all your assemblies. It would be helpful for us to proceed on this further. 
 
Regards, 
Vijayalakshmi VR 



DF David Frischknecht March 11, 2021 02:30 PM UTC

Hello,

I downloaded and opened the sample project you mentioned and I'm seeing the same behavior.  See the screenshot below.



VR Vijayalakshmi Roopkumar Syncfusion Team March 12, 2021 02:53 PM UTC

Hi David,  
 
Thank you for your update. 
 
However on opening the reported sample, we could observe that SkinManagerExtension is able to observe it without any warning error. So we suspect , it might due to the assembly not referred properly at the time of opening the designer page, so only you have faced this warning error. 
 
 
 
So kindly ensure it by referring all nuget package are common in product version and also if possible kindly share your sample that you are facing this warning error, it might help us to trace the exact cause of the reported problem at our end. 
 
Please let us know if you need any other assistance on this 
 
Regards, 
Vijayalakshmi VR 



RN Richard Naud May 15, 2021 09:38 AM UTC

I am getting the exact same error as David when opening your provided solution.



This is ridiculous...



VR Vijayalakshmi Roopkumar Syncfusion Team May 17, 2021 12:15 PM UTC


Hi Richard 
 
Thank you for using Syncfusion Support. 
 
We have checked the reported behavior related with SkinManager and observed that this type of warning error are not faced at our end. However the Theme property has been introduced in 18.3.0.35v , so when you use the previous versions of this version, then you will face this following error: 
 
 
 
 
 
So we are unable to understand what might cause this error since it is working fine at our end with our lastly provided sample. So as requested , kindly ensure it by referring all nuget package are same of product version and also if possible kindly share your sample and share your currently using syncfusion product version that you are facing this warning error. It would be very helpful for us to trace the exact cause of the reported problem at our end. In order to avoid further delays, we can set up a web meeting session to check this error at your environment. So kindly let us know your availability, we would make every effort to schedule this meeting at your convenient time. 
 
Please let us know if you need any other assistance on this. 
 
Regards, 
Vijayalakshmi VR  
 
 



TD Thierry Delucinges May 29, 2021 03:01 AM UTC

I have the same error and I'm using the last nuget version.



TD Thierry Delucinges May 29, 2021 03:08 AM UTC

Plus your comment make no sense " if possible kindly share your sample and share your currently using syncfusion product version that you are facing this warning error."
You have furnished a sample which is supposed to work, but it doesn't, nor on his side nor on mine...   sending a sample wouldn't change anything... start by creating a new env without anything in GAC, there is no reason you cannot reproduce it...

Regards


EM Elakkiya Muthukumarasamy Syncfusion Team May 31, 2021 12:35 PM UTC

Hi Thierry, 

Sorry for the inconvenience. 

We have checked the reported issue with latest nuget version by creating a new sample without anything in GAC, but we are unable to reproduce this reported issue. On further analysis, based on your exception details we will change the attribute type in our source.  So, We have confirmed it is as a defect and logged a report for this. The patch for this fix is will be included in our upcoming nuget release which is estimated to be published on 8th June 2021. 


You can track the status of this bug using following feedback link  


Please let us know if you need any other assistance on this. 

Regards, 
Elakkiya 



VR Vijayalakshmi Roopkumar Syncfusion Team June 8, 2021 06:51 AM UTC

Hi Thierry 
 
Thank you for your update. 
 
We have fixed the reported exception related with SfSkinManager and it has been included in today published nuget release 19.1.0.67v. You can find it from following link: 
 
 
Please try this at your end and let us know if it is helpful. 
 
Regards, 
Vijayalakshmi VR 


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