Error map

verifying module: checksum mismatch / SECURITY ERROR Go: verifying module: checksum mismatch — SECURITY ERROR This download does NOT match an earlier download recorded in go.sum

Go · layer 4, Application & API

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Centre: this error. First ring: errors it is linked with (10). 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.

4 · Application & API 6 · Platform & cloud 7 · Build & delivery
verifying module: checksum mismatch / SECURITY ERROR — Go: verifying module: checksum mismatch — SECURITY ERROR This download does NOT match an earlier download recorded in go.sum (Go)verifying m…avc: denied — SELinux is preventing ... / avc: denied { read } for pid=... (permission denied despite correct permissions) (Linux)avc: deniedREMOTE HOST IDENTIFICATION HAS CHANGED — WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! (ssh host key changed) (Linux)REMOTE HOST IDENTIF…NO_PUBKEY — The following signatures couldn't be verified because the public key is not available: NO_PUBKEY (Linux)NO_PUBKEYcannot find package in any of GOROOT / GOPATH — Go: cannot find package "github.com/pkg/errors" in any of: /usr/local/go/src/github.com/pkg/errors (from $GOROOT) /go/src/github.com/pkg/errors (from $GOPATH) (Go)cannot find package…listen tcp :8080: bind: address already in use — Go: listen tcp :8080: bind: address already in use (Go)listen tcp :8080: b…go: updates to go.mod needed — Go: go: updates to go.mod needed; to update it: go mod tidy (Go)go: updates to go.m…missing go.sum entry — Go: missing go.sum entry for module providing package github.com/pkg/errors (imported by app); to add: go get app (Go)missing go.sum entryterminal prompts disabled / 410 Gone (private module) — Go: fatal: could not read Username for 'https://github.com': terminal prompts disabled (Go)terminal prompts di…no required module provides package — Go: no required module provides package github.com/foo/bar; to add it: go get github.com/foo/bar (Go)no required module …invalid version: unknown revision — Go: go: github.com/foo/bar@v1.2.3: invalid version: unknown revision v1.2.3 (Go)invalid version: un…EACCES — Linux: Permission denied (Linux)EACCESwebhook signature — Webhook signature verification failed (Stripe, Razorpay, GitHub…) (API)webhook signaturesudoers — user is not in the sudoers file. This incident will be reported. (Linux)sudoerspublickey — Git: Permission denied (publickey). fatal: Could not read from remote repository. (Git)publickeyHost key verification failed — Host key verification failed. fatal: Could not read from remote repository. (Git)Host key verificati…ssh port 22 Connection refused — ssh: connect to host x port 22: Connection refused (Linux)ssh port 22 Connect…dpkg lock — E: Could not get lock /var/lib/dpkg/lock-frontend — is another process using it? (Linux)dpkg lockUnable to locate package — E: Unable to locate package (apt / apt-get install) (Linux)Unable to locate pa…Sub-process /usr/bin/dpkg returned an error code (1) — E: Sub-process /usr/bin/dpkg returned an error code (1) (Linux)Sub-process /usr/bi…import cycle not allowed — Go: package app/models imports app/utils imports app/models: import cycle not allowed (Go)import cycle not al…x509: certificate signed by unknown authority — Go: x509: certificate signed by unknown authority (Go)x509: certificate s…too many open files — Go: accept tcp [::]:8080: accept4: too many open files / open x: too many open files (Go)too many open filesport is already allocated — Docker: Bind for 0.0.0.0:80 failed: port is already allocated (Docker)port is already all…network not found — Error response from daemon: network X not found (Docker)network not foundPool overlaps — Error response from daemon: Pool overlaps with other one on this address space (Docker)Pool overlapsno Go files in directory — Go: package app/cmd: no Go files in /app/cmd / build constraints exclude all Go files (Go)no Go files in dire…

Directly related (10)

avc: deniedLinux

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…

REMOTE HOST IDENTIFICATION HAS CHANGEDLinux

WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! (ssh host key changed)

The server’s SSH host key differs from the one saved in ~/.ssh/known_hosts — usually because the server was rebuilt or the IP was…

NO_PUBKEYLinux

The following signatures couldn't be verified because the public key is not available: NO_PUBKEY

apt can’t verify a repository’s signature because the repo’s signing key isn’t installed (or has expired/rotated).

cannot find package in any of GOROOT / GOPATHGo

Go: cannot find package "github.com/pkg/errors" in any of: /usr/local/go/src/github.com/pkg/errors (from $GOROOT) /go/src/github.com/pkg/errors (from $GOPATH)

Go could not locate an imported package — it is not downloaded, the module is not initialised, or GOPATH mode is in effect.

listen tcp :8080: bind: address already in useGo

Go: listen tcp :8080: bind: address already in use

The port your Go server wants is already taken by another process (or a previous instance of your app).

go: updates to go.mod neededGo

Go: go: updates to go.mod needed; to update it: go mod tidy

`go.mod` is out of sync with the imports in your code, and Go is running with `-mod=readonly` (the default).

missing go.sum entryGo

Go: missing go.sum entry for module providing package github.com/pkg/errors (imported by app); to add: go get app

`go.sum` lacks the checksum for a dependency that your build needs.

terminal prompts disabled / 410 Gone (private module)Go

Go: fatal: could not read Username for 'https://github.com': terminal prompts disabled

Go tried to fetch a private repository without credentials (and, via the public proxy, got 404/410).

no required module provides packageGo

Go: no required module provides package github.com/foo/bar; to add it: go get github.com/foo/bar

The code imports a package whose module is not listed in `go.mod`.

invalid version: unknown revisionGo

Go: go: github.com/foo/bar@v1.2.3: invalid version: unknown revision v1.2.3

Go cannot fetch the requested module version — the tag or branch doesn't exist, the repository is private or the proxy hasn't see…

Two steps away (16)

EACCESLinux

Linux: Permission denied

Your user (or the service user) lacks read/write/execute permission on a file, directory or one of its parents.

webhook signatureAPI

Webhook signature verification failed (Stripe, Razorpay, GitHub…)

Your endpoint computed a different HMAC signature than the one the provider sent, so the webhook is rejected.

sudoersLinux

user is not in the sudoers file. This incident will be reported.

Your account isn’t allowed to use sudo.

publickeyGit

Git: Permission denied (publickey). fatal: Could not read from remote repository.

SSH authentication to GitHub/GitLab/Bitbucket failed — no key, wrong key, or the key isn’t added to your account.

Host key verification failedGit

Host key verification failed. fatal: Could not read from remote repository.

SSH doesn’t trust the server’s host key — first connection in a non-interactive environment, or the key changed.

ssh port 22 Connection refusedLinux

ssh: connect to host x port 22: Connection refused

The server answered, but nothing is listening on the SSH port — sshd isn’t running, it uses another port, or a firewall actively…

dpkg lockLinux

E: Could not get lock /var/lib/dpkg/lock-frontend — is another process using it?

apt can’t run because another package operation (often automatic updates) holds the dpkg lock.

Unable to locate packageLinux

E: Unable to locate package (apt / apt-get install)

apt can’t find the package name in its package lists — the lists are stale, the repository isn’t enabled, or the name is wrong fo…

Sub-process /usr/bin/dpkg returned an error code (1)Linux

E: Sub-process /usr/bin/dpkg returned an error code (1)

A package’s install/configure script failed, so dpkg aborted. The real error is a few lines above this message.

import cycle not allowedGo

Go: package app/models imports app/utils imports app/models: import cycle not allowed

Two or more packages import each other directly or indirectly, which Go forbids.

x509: certificate signed by unknown authorityGo

Go: x509: certificate signed by unknown authority

The Go TLS client does not trust the CA that signed the server's certificate.

too many open filesGo

Go: accept tcp [::]:8080: accept4: too many open files / open x: too many open files

The process reached its file-descriptor limit — usually leaked connections, files or response bodies.

port is already allocatedDocker

Docker: Bind for 0.0.0.0:80 failed: port is already allocated

Another container or host process already publishes that host port.

network not foundDocker

Error response from daemon: network X not found

The container or Compose project refers to a Docker network that doesn’t exist (any more).

Pool overlapsDocker

Error response from daemon: Pool overlaps with other one on this address space

Docker tried to create a network whose subnet clashes with an existing Docker network (or a VPN/host route).

no Go files in directoryGo

Go: package app/cmd: no Go files in /app/cmd / build constraints exclude all Go files

The directory you asked Go to build contains no buildable `.go` files.

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