如何将Power Bi报告与服务原理集成在一起

Question

我正在尝试将power bi与服务原理集成在一起，但是出现以下错误：

状态：未经授权（401） 响应： RequestId：9016355d-9cf3-48e3-87c8-c20afe6ae8df

为此，我从https://docs.microsoft.com/en-us/power-bi/developer/embed-sample-for-customers中提取了以下信息 我已经执行了所有这些步骤，但是当我尝试运行时，它会给出异常并抛出错误。

        // Get token credentials for user
        var getCredentialsResult = await GetTokenCredentials();
        if (!getCredentialsResult)
        {
            // The error message set in GetTokenCredentials
            return false;
        }

        try
        {
            // Create a Power BI Client object. It will be used to call Power BI APIs.
            using (var client = new PowerBIClient(new Uri(ApiUrl), m_tokenCredentials))
            {
                // Get a list of reports.
                var reports = await client.Reports.GetReportsInGroupAsync(WorkspaceId);

                // No reports retrieved for the given workspace.
                if (reports.Value.Count() == 0)
                {
                    m_embedConfig.ErrorMessage = "No reports were found in the workspace";
                    return false;
                }

                Report report;
                if (string.IsNullOrWhiteSpace(ReportId))
                {
                    // Get the first report in the workspace.
                    report = reports.Value.FirstOrDefault();
                }
                else
                {
                    report = reports.Value.FirstOrDefault(r => r.Id.Equals(ReportId, StringComparison.InvariantCultureIgnoreCase));
                }

                if (report == null)
                {
                    m_embedConfig.ErrorMessage = "No report with the given ID was found in the workspace. Make sure ReportId is valid.";
                    return false;
                }

                var datasets = await client.Datasets.GetDatasetByIdInGroupAsync(WorkspaceId, report.DatasetId);
                m_embedConfig.IsEffectiveIdentityRequired = datasets.IsEffectiveIdentityRequired;
                m_embedConfig.IsEffectiveIdentityRolesRequired = datasets.IsEffectiveIdentityRolesRequired;
                GenerateTokenRequest generateTokenRequestParameters;
                // This is how you create embed token with effective identities
                if (!string.IsNullOrWhiteSpace(username))
                {
                    var rls = new EffectiveIdentity(username, new List<string> { report.DatasetId });
                    if (!string.IsNullOrWhiteSpace(roles))
                    {
                        var rolesList = new List<string>();
                        rolesList.AddRange(roles.Split(','));
                        rls.Roles = rolesList;
                    }
                    // Generate Embed Token with effective identities.
                    generateTokenRequestParameters = new GenerateTokenRequest(accessLevel: "view", identities: new List<EffectiveIdentity> { rls });
                }
                else
                {
                    // Generate Embed Token for reports without effective identities.
                    generateTokenRequestParameters = new GenerateTokenRequest(accessLevel: "view");
                }

                var tokenResponse = await client.Reports.GenerateTokenInGroupAsync(WorkspaceId, report.Id, generateTokenRequestParameters);

                if (tokenResponse == null)
                {
                    m_embedConfig.ErrorMessage = "Failed to generate embed token.";
                    return false;
                }

                // Generate Embed Configuration.
                m_embedConfig.EmbedToken = tokenResponse;
                m_embedConfig.EmbedUrl = report.EmbedUrl;
                m_embedConfig.Id = report.Id;
            }
        }
        catch (HttpOperationException exc)
        {
            m_embedConfig.ErrorMessage = string.Format("Status: {0} ({1})\r\nResponse: {2}\r\nRequestId: {3}", exc.Response.StatusCode, (int)exc.Response.StatusCode, exc.Response.Content, exc.Response.Headers["RequestId"].FirstOrDefault());
            return false;
        }

        return true;

它应该生成一个嵌入令牌，但它给了我无上加错的错误，有人可以帮我吗？