Error Codes & Fixes

npm ERESOLVE

Dependency resolution conflict in npm install

npm ENOENT

File or directory not found during npm operation

npm EACCES Permission Denied

Permission denied when installing npm packages globally

npm E404 Not Found

Package not found in npm registry

npm EBADENGINE Wrong Node Version

Package requires different Node.js version

npm EPERM Operation Not Permitted

Operation not permitted during npm install

npm EINTEGRITY Checksum Failed

Package integrity check failed

npm ETARGET No Matching Version

No version of package satisfies the requested range

npm ELIFECYCLE Script Failed

Lifecycle script exited with non-zero code

npm WARN deprecated package

Package is deprecated and should be replaced

Node Cannot Find Module

Required module not found in node_modules

Node EADDRINUSE Port in Use

Port already in use by another process

Node Unhandled Promise Rejection

Promise rejected without catch handler

Node SyntaxError Unexpected Token

JavaScript syntax error in code

Node TypeError Not a Function

Attempted to call a non-function value

Node ECONNREFUSED Connection Refused

Unable to connect to remote server

Node Stack Overflow Error

Infinite recursion caused stack overflow

Node ENOMEM Out of Memory

Node.js ran out of memory

Node ETIMEDOUT Connection Timeout

Connection attempt timed out

Node Self-Signed Certificate Error

SSL certificate is self-signed

Python ModuleNotFoundError

Python module not installed or not found

Python TypeError Operand

Invalid operation between types

Python IndexError

List index exceeds list length

Python ValueError Int Conversion

Cannot convert string to integer

Python ImportError Name

Cannot import specific name from module

Python IndentationError

Incorrect indentation in Python code

Python SyntaxError

Invalid Python syntax

Python KeyError Dictionary

Dictionary key does not exist

Python AttributeError

Object does not have the specified attribute

Python FileNotFoundError

File or directory does not exist

Docker Daemon Not Running

Docker daemon is not accessible

Docker Unauthorized Error

Docker registry requires authentication

Docker Network Not Found

Specified Docker network does not exist

Docker Container Conflict

Container name already in use

Docker Container Not Found

Specified container does not exist

Docker COPY File Not Found

COPY instruction cannot find source file

Docker OCI Runtime Error

Container failed to start

Docker Port Already Allocated

Port mapping conflict in Docker

Docker Image Not Found

Docker image does not exist locally or remotely

Docker Exec Format Error

Container cannot execute command

Git Not a Repository

Current directory is not a Git repository

Git Push Rejected

Push was rejected by remote

Git Unrelated Histories

Cannot merge branches with no common ancestor

Git Local Changes Conflict

Operation would overwrite uncommitted changes

Git Authentication Failed

Git credentials were rejected

Git Merge Conflict

Same file changed in both branches

Git Remote Already Exists

Remote with that name is already configured

Git Pathspec No Match

Specified file or path not found

Git Bad Object HEAD

HEAD reference is corrupted

Git Line Ending Warning

Line endings will be converted

APT Unable to Locate Package

apt-get cannot find requested package

SSH Permission Denied Publickey

SSH authentication failed with public key

Sudo Unable to Resolve Host

sudo command shows hostname error

DPKG Package Processing Error

dpkg failed to install or configure package

Systemctl Command Not Found

systemctl is not available on this system

Systemd Service Start Failed

Service failed to start with systemd

Linux No Space Left on Device

Disk is full and cannot write files

Python Command Not Found

python command does not exist

SSH Connection Refused

Cannot connect to SSH server

Yum Command Not Found

yum package manager not available

AWS AccessDenied Error

IAM permissions insufficient for operation

AWS Invalid Client Token

AWS access key is invalid or inactive

AWS Expired Token Error

Temporary security credentials expired

RDS Connection Timeout

Cannot connect to RDS database

AWS Throttling Exception

API rate limit exceeded

AWS Resource Not Found

Specified AWS resource does not exist

AWS Invalid Parameter Value

API parameter value is invalid

AWS Limit Exceeded

Service quota limit reached

S3 Access Denied Error

Cannot access S3 bucket or object

EC2 Insufficient Capacity

AWS cannot launch instance in zone

Windows Access Denied

Permission to access resource denied

Windows Error 0x80070057

The parameter is incorrect

Windows Error 0x80004005

Unspecified error

Windows IRQL Blue Screen

Blue screen caused by driver or memory issue

Windows Kernel Data Error

Blue screen from disk read failure

Windows Update 0x800F0922

Windows Update installation failed

Windows Application Error 0xc000007b

Application failed to initialize properly

Windows Cannot Access File

File access blocked by permissions or security

Windows RPC Server Unavailable

Remote Procedure Call service not responding

Windows DPC Watchdog BSOD

Blue screen from driver taking too long

macOS Error -43 File Not Found

Finder cannot complete operation - file not found

macOS App Damaged Error

Application cannot run due to Gatekeeper

macOS Kernel Panic

System crash requiring restart

macOS Permission Error

Insufficient permissions to open file or app

macOS Disk Full Error

Startup disk has no free space

macOS Bluetooth Not Available

Bluetooth is disabled or not working

macOS WiFi No Hardware

macOS cannot detect WiFi card

macOS Time Machine Backup Failed

Time Machine cannot complete backup

macOS Terminal Operation Not Permitted

Terminal lacks permission for operation

macOS Installer Cannot Be Verified

Downloaded installer failed verification

LG Washer OE Error

LG washing machine drain error

LG Washer UE Error

LG washing machine unbalanced load

LG Fridge Er FF Error

LG refrigerator freezer fan error

LG Dishwasher AE Error

LG dishwasher leak detected

LG Dryer d80 Error

LG dryer exhaust blockage

Samsung Washer 4E Error

Samsung washing machine water supply error

Samsung Washer SE Error

Samsung washing machine drain motor error

Samsung Fridge 22 E Error

Samsung refrigerator fan error

Samsung Dishwasher 5E Error

Samsung dishwasher drain error

Samsung Dryer HE Error

Samsung dryer heating error

Browser ERR_CONNECTION_REFUSED

Browser cannot connect to the server

Browser ERR_NAME_NOT_RESOLVED

Browser cannot find the domain name

Browser SSL Protocol Error

SSL/TLS connection failed

Browser Certificate Authority Invalid

SSL certificate not trusted

Browser Internet Disconnected

No internet connection detected

Browser CORS Error

Cross-origin request blocked

Browser Mixed Content Error

HTTPS page loading HTTP content

Browser Too Many Redirects

Page redirect loop detected

Browser Request Blocked by Extension

Request blocked by browser extension

JavaScript Cannot Read Property of Undefined

JavaScript tried to access property of undefined

Connection Not Private Warning

Browser detected SSL certificate issue

Chrome Deceptive Site Warning

Google Safe Browsing flagged this site

Windows Defender Threat Alert

Windows detected malware on your system

Ransomware Lock Screen Warning

Ransomware or scareware on your computer

Google Suspicious Sign-in Blocked

Google blocked an unusual login attempt

Chrome Harmful File Download Warning

Chrome blocked a potentially harmful download

Firefox Unknown Certificate Issuer

Firefox does not trust the certificate issuer

Windows Defender High CPU Usage

Windows Defender using high system resources

Browser Password Breach Alert

Your saved password was found in a data breach

SSL Handshake Failed Error

Browser could not complete SSL negotiation

Fake Microsoft Tech Support Popup

This is a SCAM - Microsoft never shows popups like this

Fake Apple ID Locked Email Scam

This is a phishing email - do NOT click links

Fake Windows Security Alert Popup

This is a browser scam - NOT a real Windows alert

Fake Prize Giveaway Popup Scam

This is a SCAM - you did not win anything

Fake Subscription Expiry Email Scam

This is a phishing attempt to steal payment info

Fake IRS Tax Scam Call or Email

This is a SCAM - IRS never threatens arrest by phone

Fake Package Delivery SMS Scam

This is a phishing text message scam

Fake Virus Broadcasting Popup Scam

This is a tech support SCAM popup

Fake PayPal Security Email Scam

This is a phishing email impersonating PayPal

Fake FBI Browser Lock Ransomware

This is ransomware or a scam popup - NOT the FBI