I have solved the problem by adding the credentials (bold) to EmbedSample > Web.config:
<appSettings>
<add key="powerbi:AccessKey" value="X==" />
<add key="powerbi:Username" value="X" />
<add key="powerbi
assword" value="X" />
<add key="powerbi:ApiUrl" value="https://api.powerbi.com" />
<add key="powerbi:WorkspaceCollection" value="X" />
<add key="powerbi:WorkspaceId" value="Xcc" />
</appSettings>
and to EmbedSample > DashboardController.cs:
public class DashboardController : Controller
{
private readonly string workspaceCollection;
private readonly string username;
private readonly string password;
private readonly string workspaceId;
private readonly string accessKey;
private readonly string apiUrl;
public DashboardController()
{
this.workspaceCollection = ConfigurationManager.AppSettings["powerbi:WorkspaceCollection"];
this.username = ConfigurationManager.AppSettings["powerbi:Username"];
this.password = ConfigurationManager.AppSettings["powerbiassword"];
this.workspaceId = ConfigurationManager.AppSettings["powerbi:WorkspaceId"];
this.accessKey = ConfigurationManager.AppSettings["powerbi:AccessKey"];
this.apiUrl = ConfigurationManager.AppSettings["powerbi:ApiUrl"];
}
Although I have started to get "Debug Assert failed: Warning: Feature switches have not been registered yet so switch values may not be correct". It seems it has something to do with the PowerBI update in March.
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