/// <summary>
/// Return all possibly valid project names in the current solution. This includes all
/// unique names and safe names.
/// </summary>
/// <returns></returns>
private IEnumerable <string> GetAllValidProjectNames()
{
var nugetProjects = VsSolutionManager.GetNuGetProjects();
var safeNames = nugetProjects?.Select(p => VsSolutionManager.GetNuGetProjectSafeName(p));
var uniqueNames = nugetProjects?.Select(p => NuGetProject.GetUniqueNameOrName(p));
return(uniqueNames.Concat(safeNames).Distinct());
}