I am a Docker noob and am trying to run the make dev-services script, declared in the skaffold.yml file (I exchanged image and sha names with xxx):

```
- name: dev-services
  build:
    tagPolicy:
      inputDigest: {}
    local:
      push: false
      useBuildkit: true
    artifacts:
    - image: gcr.io/xxx/service-base
      context: .
    - image: gcr.io/xxx/api
      context: server/api/
      requires:
        - image: gcr.io/xxx/service-base
          alias: service_base
    - image: gcr.io/xxx/media
      context: server/media/app
      requires:
        - image: gcr.io/xxx/service-base
          alias: service_base
  deploy:
    kustomize:
      paths:
        - ./k8s/local
        - ./server/api/k8s/development
        - ./server/media/k8s/development

```

When I run it, I get this error:

```
Building [gcr.io/xxx/media]...
[+] Building 2.8s (4/4) FINISHED                                                                                                                                                                            
 => [internal] load build definition from Dockerfile                                                                                                                                                   0.0s
 => => transferring dockerfile: 37B                                                                                                                                                                    0.0s
 => [internal] load .dockerignore                                                                                                                                                                      0.0s
 => => transferring context: 2B                                                                                                                                                                        0.0s
 => [internal] load metadata for docker.io/library/alpine:3.14                                                                                                                                         1.2s
 => ERROR [internal] load metadata for gcr.io/xxx/service-base:xxx                                                     2.6s
------
 > [internal] load metadata for gcr.io/xxx/service-base:xxx:
------
failed to solve with frontend dockerfile.v0: failed to create LLB definition: unexpected status code [manifests xxx]: 401 Unauthorized
Building [gcr.io/xxx/api]...
Canceled build for gcr.io/xxx/api
exit status 1. Docker build ran into internal error. Please retry.
If this keeps happening, please open an issue..
make: *** [dev-services] Error 1

```

Anyone know what might be the problem here?
Might it be the google container registry?
I'm using Minikube. Is there a Minikube - or Docker - registry that could try? If so, what would I need to change in the skaffold.yaml file?

Thanks a lot in advance :)