Upgrade causes The tag 'ComboBoxAdv' does not exist in XML namespace 'http://schemas.syncfusion.com/wpf'.

[Dhimant Patel]

Hi All,
I upgraded to the latest version of syncfusion 14.1460.0.46.
After that even a brand new WPF project (which builds successfully), now shows above error right after dropping a control from Toolbox.

Here is the complete xaml:
-------------------------------------------------------------------------------------------
<Window xmlns:syncfusion="http://schemas.syncfusion.com/wpf"  x:Class="WpfApplication3.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApplication3"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <syncfusion:ComboBoxAdv />
    </Grid>
</Window>
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Target framework is set to ".Net Framework 4.5.2" in the project properties.
Dragging and droppoing of ComboBoxAdv control adds "Syncfusion.Shared.WPF" assembly in the References, with path "C:\Program Files (x86)\Syncfusion\Essential Studio\14.1.0.46\Assemblies\4.6\Syncfusion.Shared.WPF.dll".

Any suggestions on how to painlessly upgrade the software and projects?

Thanks in advance!
-DP.

[Dhimant Patel]

Ok, found the solution, that will become my #1 rule after any sort of upgrade on base frameworks.

The reason was all projects were targeting the then latest .Net framework "4.5.2", in the project properties.

So the rule becomes, after upgrade, just hit to the project properties and change the target framework to the latest available.

Had I paid enough attentions to "Warnings", it actually tells the problem very clearly.

Happy programming!

[Jegan Raj M]

Hi Dhimant,

Yes, Framework version is the problem and you have solved this. Thanks for your update. Please log new ticket if you have any other queries.

Regards,
Jegan Raj M