Error map
Unit not found Failed to start x.service: Unit x.service not found
Linux · layer 6, Platform & cloud
Centre: this error. First ring: errors it is linked with (9). 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 (9)
systemd: Start request repeated too quickly / service hit its start limit
The service crashed and restarted several times in a short period, so systemd stopped trying (StartLimitBurst).
System has not been booted with systemd as init system (PID 1). Can't operate.
You ran systemctl inside an environment without systemd as PID 1 — a Docker container or older WSL.
Failed to connect to bus: No such file or directory (systemctl --user / timedatectl)
The command needs the D-Bus/systemd bus, which isn’t available in this session — common over su, sudo -u, cron, containers or WSL.
spec.ports[0].nodePort: Invalid value: 80: provided port is not in the valid range. The range of valid ports is 30000-32767
A NodePort Service asked for a port outside the cluster’s NodePort range (default 30000–32767).
Context.startForegroundService() did not then call Service.startForeground() / ForegroundServiceStartNotAllowedException
A foreground service didn’t call startForeground() within a few seconds, or the app tried to start one from the background where…
Job for nginx.service failed because the control process exited with error code
systemd tried to start the service, but its start command failed. The real reason is in the service’s status/journal.
Windows Update error 0x80070422 (service is disabled)
Windows Update (or the Microsoft Store/Defender) can’t run because a required service — usually Windows Update (wuauserv) — is di…
bash: command not found
The shell can’t find an executable with that name in any directory on your PATH.
systemd: Main process exited, code=exited, status=203/EXEC
systemd couldn’t execute the ExecStart command — the path is wrong, the file isn’t executable, or its interpreter is missing.
Two steps away (23)
Docker container keeps restarting (Restarting (1) x seconds ago)
The container crashes on start and its restart policy (always/unless-stopped/on-failure) starts it again in a loop.
ECS task stopped: CannotPullContainerError: pull image manifest has been retried ... / ref pull has been retried
The ECS task couldn’t pull its image — no network route to the registry, missing ECR permissions, or a wrong image tag.
Docker container exits immediately (Exited (0) / Exited (1) right after start)
The container started and its main process finished at once, so the container stopped — Docker containers only live as long as PI…
Azure Container Registry: unauthorized: authentication required, visit https://aka.ms/acr/authorization (AKS ErrImagePull 401)
Pulling/pushing to ACR wasn’t authenticated — Docker not logged in, or AKS/App Service lacks AcrPull on the registry.
passwd: Authentication token manipulation error
passwd couldn’t update the password — the root filesystem is read-only, /etc/shadow has wrong permissions/attributes, or a PAM ru…
AADSTS50034: The user account does not exist in the directory
There’s no user with that sign-in name in the tenant.
AADSTS50057: The user account is disabled
The account exists but is blocked from signing in.
Error response from daemon: network X not found
The container or Compose project refers to a Docker network that doesn’t exist (any more).
driver failed programming external connectivity on endpoint: iptables: No chain/target/match by that name
Docker’s iptables rules were wiped (firewalld/ufw reload, iptables flush) while Docker was running, so it can’t publish ports.
Ingress returns "404 Not Found" / "default backend - 404" (ingress-nginx)
The ingress controller received the request but no Ingress rule matched the host/path, so it answered with its default backend.
Service has no endpoints (no endpoints available for service / Endpoints: <none>)
The Service’s selector matches no ready pods, so traffic to it is refused or returns 503.
java.lang.SecurityException: Permission Denial ... requires android.permission.X
The app called an API that needs a permission it hasn’t declared or the user hasn’t granted at runtime.
Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent
Apps targeting Android 12+ must declare PendingIntent mutability; missing flags crash.
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
Nginx (or another server) can’t listen on the port because another process already holds it — often Apache, another Nginx, or a s…
Nginx: nginx: [emerg] unknown directive "x" in /etc/nginx/sites-enabled/x:12 — configuration file test failed
Nginx found a directive it doesn’t know — a typo, a missing semicolon on the previous line, a directive from a module that isn’t…
Windows Error 0x80070005 (E_ACCESSDENIED): Access is denied
Windows refused an operation because the account or process lacks permission — seen in Windows Update, installers, Task Scheduler…
Windows Error 0x80070002: The system cannot find the file specified
A file or registry entry Windows expected is missing — common in Windows Update, backups and app installs.
Windows Error 0x80070643: Fatal error during installation
An MSI-based installer or update (often Defender definitions, .NET or the WinRE update KB5034441) failed during installation.
fatal: not a git repository (or any of the parent directories): .git
You ran a Git command outside a Git working tree.
Error: ENOENT: no such file or directory
A file or directory the program tried to open doesn’t exist at that path.
Linux: Permission denied
Your user (or the service user) lacks read/write/execute permission on a file, directory or one of its parents.
exec /docker-entrypoint.sh: no such file or directory (CRLF line endings / missing interpreter)
The entrypoint file exists, but the kernel can’t run it — almost always Windows CRLF line endings in the script, or a shebang poi…
SELinux is preventing ... / avc: denied { read } for pid=... (permission denied despite correct permissions)
SELinux blocked the access — file permissions look fine, but the file’s security context or a boolean doesn’t allow the service t…
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