nu1301 error represents a topic that has garnered significant attention and interest. Nuget Restore Error NU1301 Load Service Failure. According to the documentation's article NuGet Error NU1301: Restore could not be completed because the listed source is unavailable. Consult the error message for more details.
You may need to inform the source owner as there might be issues that only they can address. NuGet Error NU1301 | Microsoft Learn. Restore could not be completed because the listed source is unavailable.
Alternatively, you can try removing the source from the configuration retry again. Resolving NU1301 when using Azure Artifacts - RubberDuckDev. Additionally, once installed, run the dotnet restore --interactive command to resolve the NU1301 error. This command initiates an interactive authentication process, allowing us to provide credentials for the NuGet package sources that require authentication. NuGet NU1301 error during "dotnet-build", how to handle this?.
It seems to be a problem with the local domain as NuGet.org seems to work, there are no error messages. For your information: localdomain is defined in /etc/hosts file. Error NU1301 instead of "TLS validation failed" displays when running .... As @zivkan mentioned, it seems that the exact error is being obscured by the 'Unable to load the service index' message. From another angle, we should update the expected output in the manual test instructions to state: if disableTLSCertificateValidation="true", then expect success; otherwise, expect failure. It's important to note that, build failing with not being able to restore workerExtension.csproj.
The error message indicates that it is unable to load the service index for the NuGet package source. This could be due to a transient network issue or a problem with the NuGet package source itself. Azure Devops Nuget restore fails with "unable to load the service index ....
I just spent nearly two days fighting this same NU1301 error, and while my ADO instance is cloud-based and the "latest", i.e., not exactly analogous to your situation, maybe my experience will shed some light. Similarly, error NU1301: Unable to load the service index for source ... In case of network error, I think it needs to gracefully attempt package resolution based on ~/.nuget/packages, and report the network issues via telemetry, and fail to the user only if the local resolution failed.
What you can do is try to avoid using nuget mirror in China. You can try to resolve api.nuget.org here: https://boce.aliyun.com/detect/dns or https://www.gdnspc.com/ Then you can write the result to your machine's hosts fine. I just created a new WINUI3 project and tried to build it. What may cause this error NU1301: Unable to load the service index for source error and how do I solve it? Other than adding an internal nuget package (and using nuget.config to be certain the sources are correct on the server) nothing was changed.
📝 Summary
To conclude, we've examined important points regarding nu1301 error. This article offers valuable insights that can guide you to better understand the topic.
Thank you for taking the time to read this comprehensive overview on nu1301 error. Keep learning and stay curious!