Error map
Cannot connect to the Docker daemon (GitLab) GitLab CI: Cannot connect to the Docker daemon at tcp://docker:2375. Is the docker daemon running?
CI/CD · layer 7, Build & delivery
Centre: this error. First ring: errors it is linked with (11). Outer ring: what those are linked with. Colours show the layer of a request each error belongs to. Click any dot to re-centre the map on it; hover to follow its connections. The centre dot opens the error page.
Directly related (11)
GitLab CI: This job could not start because it could not retrieve the needed artifacts (dependencies: build).
A job needs artifacts from an earlier job, but that job failed, was skipped or its artifacts have expired or been deleted.
GitLab CI: ERROR: Job failed: execution took longer than 1h0m0s seconds
The job ran past its timeout (project default is 60 minutes) and GitLab killed it.
GitLab CI: No pipeline created — pipeline filtered out by workflow:rules / "The rules configuration prevented any jobs from being added to the pipeline"
Your `workflow:rules` or job-level `rules:` evaluated to "never" for this event, so GitLab created no pipeline or no jobs.
Jenkins: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock
The Jenkins user is not allowed to talk to Docker — it is not in the `docker` group or the socket is not mounted in the container.
Bitbucket Pipelines: Container 'Build' exceeded memory limit / Docker container exited with code 137
A Bitbucket Pipelines step used more memory than the step allows (4 GB by default, 1 GB for service containers) and was killed.
GitHub Actions: Error: Cannot perform an interactive login from a non TTY device
`docker login` asked for a password interactively, but CI has no terminal — pass credentials non-interactively.
GitLab CI: Found errors in your .gitlab-ci.yml: jobs:build config contains unknown keys: scripts
GitLab rejected the pipeline configuration, so no pipeline was created — the message names the job and the problem.
GitLab CI: ERROR: Job failed: failed to pull image "registry.example.com/app:latest" with specified policies [always]: access forbidden
The runner could not pull the job's Docker image — authentication, a wrong name or tag, or a registry rate limit.
GitLab CI: ERROR: Job failed: exit code 1
The last command in the job's `script` returned a non-zero status; the real error is printed earlier in the job log.
GitLab CI: ERROR: Registering runner... failed runner=abc status=couldn't execute POST against https://gitlab.com/api/v4/runners: 403 Forbidden
`gitlab-runner register` was rejected — the registration token is invalid or expired, or GitLab now expects an authentication tok…
GitLab CI: ERROR: Uploading artifacts as "archive" to coordinator... too large archive id=123 responseStatus=413 Request Entity Too Large
The job produced an artifact bigger than the instance or project's maximum artifact size.
Two steps away (23)
GitHub Actions: Error: This request has been automatically failed because it uses a deprecated version of `actions/upload-artifact: v3`
Since January 2025 the v3 artifact actions no longer work — upload and download steps fail until you move to v4.
GitHub Actions: Error: Unable to download artifact(s): Artifact not found for name: build
`download-artifact` could not find an artifact with that name in the run (or repository) — it was never uploaded, named different…
GitLab CI: This job is stuck because you don't have any active runners online or available with any of these tags assigned to them
No GitLab runner can pick up the job — runners are offline, the job’s tags don’t match any runner, or shared runners are disabled.
GitHub Actions: The job running on runner GitHub Actions 12 has exceeded the maximum execution time of 360 minutes
A job ran longer than its time limit — your `timeout-minutes`, or the 6-hour (360 minute) platform limit — and was cancelled.
CircleCI: Too long with no output (exceeded 10m0s): context deadline exceeded
A CircleCI step printed nothing for 10 minutes, so CircleCI assumed it hung and cancelled it.
GitHub Actions: workflow does not run on push / pull_request / workflow_dispatch button missing
A workflow file exists but no run appears — the trigger filters do not match, the file is not on the right branch, or the workflo…
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
The docker CLI can’t talk to the Docker engine — it isn’t running, or your user can’t access the socket.
Jenkins: Still waiting to schedule task — Waiting for next available executor / 'agent1' is offline
A Jenkins build is queued because no executor with the required label is free or the agent is offline.
Jenkins: org.jenkinsci.plugins.scriptsecurity.sandbox.RejectedAccessException: Scripts not permitted to use method java.lang.String toUpperCase
A sandboxed Pipeline script called a method that has not been approved in Script Security.
GitHub Actions: Error: Process completed with exit code 137 (Killed — out of memory)
The command was killed by the system with SIGKILL (128 + 9), almost always because the runner ran out of memory.
CircleCI: Error calling workflow: 'build'. Cannot find a definition for job named test / Config does not conform to schema
CircleCI could not compile `.circleci/config.yml` — a workflow refers to a missing job, a key is invalid, or the YAML is malforme…
CircleCI: Cannot find orb 'circleci/node@9.9.9'. Check the namespace and version exist
The orb reference in your config does not resolve: wrong namespace, name or version, or the orb is private and not accessible.
denied: requested access to the resource is denied (docker push)
You’re logged in, but not allowed to push to that repository — usually the image isn’t tagged with your own username/organisation.
GitHub Actions: Error: Resource not accessible by integration (403)
The workflow’s GITHUB_TOKEN doesn’t have the permission needed for that API call (comment, push, create release, write packages).
GitHub Actions: Cache not found for input keys: npm-Linux-abc123 / Failed to save: Unable to reserve cache with key, another job may be creating this cache
`actions/cache` either found nothing for your key (restore miss) or could not save because another run is already saving the same…
docker compose: services.x Additional property y is not allowed / yaml: line N: mapping values are not allowed
The compose file is invalid YAML or uses a key Compose doesn’t recognise at that level (usually an indentation mistake).
service "web" depends on undefined service "db": invalid compose project
A service lists depends_on (or links/networks) for a service name that isn’t defined in the Compose file(s) being used.
GitHub Actions: Invalid workflow file: .github/workflows/ci.yml#L12 — You have an error in your yaml syntax on line 12
GitHub could not parse your workflow YAML, so no run was created — usually indentation, a tab, or an unquoted special character.
GitHub Actions: Error: Process completed with exit code 1.
A `run:` command returned a non-zero status, so the step (and job) failed — the real cause is printed in the log lines above.
GitHub Actions: Error: Process completed with exit code 127 — command not found
The shell could not find the command you tried to run: it is not installed on the runner, not on PATH, or misspelled.
GitHub Actions: The runner has received a shutdown signal. This can happen when the runner service is stopped, or a manually started runner is canceled
The machine running your job was shut down or reclaimed while the job was running — a self-hosted runner stopped, a spot instance…
GitHub Actions: System.IO.IOException: No space left on device — the runner's disk is full
The job filled the runner's disk (about 14 GB free on standard Linux runners): large Docker images, caches, build outputs or test…
GitHub Actions: Waiting for a runner to pick up this job… (job stays queued — No runner matching the specified labels)
The job is queued and never starts — no available runner has all the labels in `runs-on`, runners are offline/busy, or the hosted…
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