I had the same problem and this is how I fixed it.
First close Visual Studio and find the project guide from the new projects. This can be done by looking at the .csproj file. Then open the solution file in a text editor such as Notepad ++.
In the solution file, find the GlobalSection(ProjectConfigurationPlatforms) = postSolution .
Each of your projects will have a configuration list. You will notice that your new projects probably already have settings for your configurations, BUT they will be set to DEBUG or RELEASE , as shown in the example below.
{2E6B7D61-640E-4878-BE6D-7CD705AB9A6A}.Staging|Any CPU.ActiveCfg = Debug|Any CPU {2E6B7D61-640E-4878-BE6D-7CD705AB9A6A}.Staging|Any CPU.Build.0 = Debug|Any CPU {2E6B7D61-640E-4878-BE6D-7CD705AB9A6A}.Live|Any CPU.ActiveCfg = Debug|Any CPU {2E6B7D61-640E-4878-BE6D-7CD705AB9A6A}.Live|Any CPU.Build.0 = Debug|Any CPU
To fix this, modify Debug|Any CPU instead of your configuration. Therefore, in my example above, my settings will be as follows:
{2E6B7D61-640E-4878-BE6D-7CD705AB9A6A}.Staging|Any CPU.ActiveCfg = Staging|Any CPU {2E6B7D61-640E-4878-BE6D-7CD705AB9A6A}.Staging|Any CPU.Build.0 = Staging|Any CPU {2E6B7D61-640E-4878-BE6D-7CD705AB9A6A}.Live|Any CPU.ActiveCfg = Live|Any CPU {2E6B7D61-640E-4878-BE6D-7CD705AB9A6A}.Live|Any CPU.Build.0 = Live|Any CPU
Save the changes, and then restart Visual Studio and open your solution.
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