I have some problems opening the Visual Studio solution file. I tried with VS 2015 Professional as well as with VS 2017 Community. C# Development installed for both of them, but the opening process fails due to:
VS 2015 professional:
error : The default XML namespace of the project must be the MSBuild XML namespace. If the project is authored in the MSBuild 2003 format, please add xmlns=“http://schemas.microsoft.com/developer/msbuild/2003” to the element. If the project has been authored in the old 1.0 or 1.2 format, please convert it to MSBuild 2003 format.
VS 2017 community:
error : The SDK ‘Microsoft.NET.Sdk’ specified could not be found.
While I don’t necessary need a working project in VS to implement the features I want to implement, it is very inconvenient, to not be able to have the project in a working IDE.
Can anyone give me any hints, on what to do to open the project? Thanks.