Greetings from Syncfusion.
We have analysed the reported issue and it is caused due to TypeScript library upgradation. To resolve this issue, we need to add the TypeScript Libraries tag in your ‘csproj’ file. Please refer the below code snippet,
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
Please get back to us, if you have any other queries.
Jude Leander J.