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[GH-ISSUE #142] Error #60
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starred/cv4pve-admin#60
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Originally created by @haarm on GitHub (Feb 15, 2026).
Original GitHub issue: https://github.com/Corsinvest/cv4pve-admin/issues/142
Edition
Community Edition (CE)
Version
2
Deployment Type
Docker
Bug Description
root@docker:/opt/cv4pve-admin-docker# docker compose up -d
WARN[0000] The "TAG" variable is not set. Defaulting to a blank string.
WARN[0000] The "TAG" variable is not set. Defaulting to a blank string.
WARN[0000] The "TAG" variable is not set. Defaulting to a blank string.
WARN[0000] The "TAG" variable is not set. Defaulting to a blank string.
unable to get image 'corsinvest/cv4pve-admin:TAG=$(echo "" | xargs)': Error response from daemon: invalid reference format
Steps to Reproduce
docker compose up -d
Expected Behavior
root@docker:/opt/cv4pve-admin-docker# docker compose up -d
WARN[0000] The "TAG" variable is not set. Defaulting to a blank string.
WARN[0000] The "TAG" variable is not set. Defaulting to a blank string.
WARN[0000] The "TAG" variable is not set. Defaulting to a blank string.
WARN[0000] The "TAG" variable is not set. Defaulting to a blank string.
unable to get image 'corsinvest/cv4pve-admin:TAG=$(echo "" | xargs)': Error response from daemon: invalid reference format
Actual Behavior
.
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@franklupo commented on GitHub (Feb 15, 2026):
The current versione 2.0.0-rc1
@haarm commented on GitHub (Feb 15, 2026):
Yes, I have this error in the second version.
I have no idea what I need to change to make it work.
I've always used the binary version until now, but I don't think it's suitable for the new one.
@franklupo commented on GitHub (Feb 15, 2026):
Use install script
https://corsinvest.github.io/cv4pve-admin/getting-started/
@haarm commented on GitHub (Feb 15, 2026):
I use this script, but as soon as I run docker compose up -d, I get the error
@franklupo commented on GitHub (Feb 15, 2026):
You can attach the docker-compose.yaml file.
Best regards.
@haarm commented on GitHub (Feb 15, 2026):
I use the standard file that comes with it.
Sorry for being so stupid, but Docker is not my world.
@haarm commented on GitHub (Feb 15, 2026):
The problem probably lies in the .env file where the tag for the version it should download is set.
CV4PVE_ADMIN_TAG=TAG=$(echo ‘$TAG’ | xargs) # Trim whitespace
But what do I enter there?
@franklupo commented on GitHub (Feb 16, 2026):
Replace manually
CV4PVE ADMIN TAG=2.0.0-rc1
I'll fix it
Best regards
@haarm commented on GitHub (Feb 16, 2026):
It is installing now, thank you very much.
But how do I access the website?
I have a Docker server without an X interface, and no bridge network is created.