Pull Failed - unauthorized authentication required

[amoltandon]

trafficstars

I have tried to pull the image, but it gives the error "unauthorized authentication required" Please let me know how to resolve this issue...

[joserwan]

I got the same error:

> docker pull mcr.microsoft.com/mssql/server:2017-latest-ubuntu
Error response from daemon: Get https://mcr.microsoft.com/v2/: Forbidden

> docker --debug pull mcr/microsoft.com/mssql/server:2017-latest-ubuntu
Error response from daemon: pull access denied for mcr/microsoft.com/mssql/server, repository does not exist or may require 'docker login'

> docker --debug pull mcr.microsoft.com/mssql/server
Using default tag: latest
Error response from daemon: Get https://mcr.microsoft.com/v2/: Forbidden

Docker version:

docker version
Client:
 Version:           18.09.6
 API version:       1.39
 Go version:        go1.10.8
 Git commit:        481bc77
 Built:             Sat May  4 02:35:27 2019
 OS/Arch:           linux/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          18.09.6
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.10.8
  Git commit:       481bc77
  Built:            Sat May  4 01:59:36 2019
  OS/Arch:          linux/amd64
  Experimental:     false

Note that I'm "docker logged in" on a private repo, not in docker hub.

[GaTechThomas]

What was the solution?