Instrument .NET apps for Error Reporting

You can send error reports to Error Reporting from .NET applications by using the Google.Cloud.Diagnostics set of libraries .

Error Reporting is integrated with some Google Cloud services, such as App Engine, Compute Engine, and Google Kubernetes Engine. Error Reporting displays the errors that are logged to Cloud Logging by applications running on those services. For more information, go to Running on Google Cloud Platform on this page.

You can also send error data to Error Reporting using Logging. For information on the data formatting requirements, read Formatting error messages in Logging.

Before you begin

1. Sign in to your Google Cloud account. If you're new to Google Cloud, create an account to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.

2. In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

   Note: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.

   Go to project selector

3. Make sure that billing is enabled for your Google Cloud project. Learn how to check if billing is enabled on a project.

4. Enable the Error Reporting API .

   Enable the API

5. In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

   Note: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.

   Go to project selector

6. Make sure that billing is enabled for your Google Cloud project. Learn how to check if billing is enabled on a project.

7. Enable the Error Reporting API .

   Enable the API

Installing the client library

Google.Cloud.Diagnostics set of libraries lets you monitor and view errors reported by .NET applications running nearly anywhere.

1. For applications that target ASP.NET Core 3 or later, use the Google.Cloud.Diagnostics.AspNetCore3 library. You can install this library from NuGet.
2. For applications that target earlier versions of ASP.NET Core, use the Google.Cloud.Diagnostics.AspNetCore library. You can install this library from NuGet.
3. For applications that target non ASP.NET Core frameworks, use the Google.Cloud.Diagnostics.Common library. You can install this library from NuGet.

For more information on installation, read the documentation for the Google.Cloud.Diagnostics set of libraries . You can also report issues using the issue tracker.

Configuring the client library

For more information and examples, see the following resources:

Google.Cloud.Diagnostics.AspNetCore3 documentation

Google.Cloud.Diagnostics.AspNetCore documentation

Google.Cloud.Diagnostics.Common documentation

Reporting errors

For more information and examples, see the following resources:

Google.Cloud.Diagnostics.AspNetCore3 documentation

Google.Cloud.Diagnostics.AspNetCore documentation

Google.Cloud.Diagnostics.Common documentation

Running on Google Cloud

Using the Google.Cloud.Diagnostics set of libraries requires the Identity and Access Management Error Reporting Writer role. Most Google Cloud computing platforms provide this role by default.

You can configure Error Reporting for .NET on the following Google Cloud environments.

App Engine flexible environment

App Engine grants the Error Reporting Writer role by default.

The Google.Cloud.Diagnostics set of libraries can be used without needing to explicitly provide credentials.

Error Reporting is automatically enabled for App Engine flexible environment applications. No additional setup is required. Messages written from App Engine to stderr are analyzed and, if found to contain a stack trace, will be displayed by Error Reporting.

See Viewing errors for instructions on viewing error and exception data for your application in the Google Cloud console.

Google Kubernetes Engine

On GKE, you must add the cloud-platform access scope when creating the cluster, as the following example command shows:

gcloud container clusters create example-cluster-name --scopes https://www.googleapis.com/auth/cloud-platform

Compute Engine

When using Compute Engine VM instances, add the cloud-platform access scope to each instance. When creating a new instance through the Google Cloud console, you can do this in the Identity and API access section of the Create Instance panel. Use the Compute Engine default service account or another service account of your choice, and select Allow full access to all Cloud APIs in the Identity and API access section. Whichever service account you select, ensure that it has been granted the Error Reporting Writer role in the IAM & admin section of the Google Cloud console.

Running locally and elsewhere

To use the Google.Cloud.Diagnostics set of libraries outside of Google Cloud, including running the library on your own workstation, on your data center's computers, or on the VM instances of another cloud provider, you must supply your Google Cloud project ID and appropriate service account credentials directly to the Google.Cloud.Diagnostics set of libraries .

You can create and obtain service account credentials manually. When specifying the Role field, use the Error Reporting Writer role. For more information on Identity and Access Management roles, go to Access control guide.

Viewing error reports

After deployment, you can view error reports in the Google Cloud console Error Reporting dashboard.

Go to the Error Reporting dashboard

For more information, see Viewing Errors.