This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(300.8, 72%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EW%3C/text%3E%3C/svg%3E)
I had created Docker Registry Service Connection on Azure DevOps to use MSI as authentication type. However, it does not able to access the ACR. If to use 'Others' or SPN as authentication type, the issue will not happen.
Error Message:
##[error]Unhandled: Could not fetch access token for Managed Service Principal. Please configure Managed Service Identity (MSI) for virtual machine 'https://aka.ms/azure-msi-docs'. Status code: %s, status message: %s
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(60.8, 4%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKM%3C/text%3E%3C/svg%3E)
Hello, @Williani !
If an answer has been helpful, please consider accepting the answer to help increase visibility of this question for other members of the Microsoft Q&A community. If not, please let us know what is still needed in the comments so the question can be answered. Thank you for helping to improve Microsoft Q&A!
Is your Azure DevOps agent self-hosted on a virtual machine?
Did you enable a managed Identity for the VM and then give that identity RBAC on your ACR?
my build agent is self hosted on vm.
yes we did enable the msi to the vm and the msi rbac and permission to the acr.