Error parsing the nested project section in solution file.

I downloaded an ASP.NET Core 1.x template with the .NET Core 1.1 framework, single page web application and module zero.

I opened the solution in the aspnet-core folder in Visual Studio Enterprise 2017.

I set the Web.Host project as the startup project.

In the Web.Host project I edited the appsettings.json file and changed the connection string to: "Server=(localDb)\\MSSQLLocalDb"

I opened the Package Manager Console and ran update-database.

Expected: The database to be built

Actual: Build Failure. Error: Error parsing the nested project section in solution file. A project with the GUID "{A2213374-BB48-48FD-BBD4-81E6A961D866}" is listed as being nested under project "{AFAA0841-BD93-466F-B8F4-FB4EEC86F1FC}", but does not exist in the solution. C:\Source\BoilerplateDemo\aspnet-core\BoilerplateDemo.sln

[ismcagdas]

Fixed on aspnetboilerplate.com

[aodendaal]

I fixed the 'path' cannot be an empty string ("") or start with the null character. by right-clicking on the solution and selecting Disable Lightweight Solution Load and restarting VS.