All Errors
4963 error solutions available - Page 170 of 249
DockerBEGINNERMEDIUM
How to fix 'executable file not found' caused by Windows line endings in Docker
This error occurs when a shell script has Windows-style line endings (CRLF), causing Docker to interpret the shebang line literally as '#!/bin/bash\r' instead of '#!/bin/bash'. Converting the script to Unix line endings (LF) fixes the issue.
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exec: "#!/bin/bash\r": executable file not found i...Node.jsINTERMEDIATEMEDIUM
How to fix "ENOTFOUND: hostname not resolved" in Node.js
The ENOTFOUND error occurs when Node.js cannot resolve a hostname to an IP address through DNS lookup. This typically happens with invalid hostnames, typos in URLs, network connectivity issues, or DNS configuration problems.
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Error: getaddrinfo ENOTFOUND invalid-hostname.loca...GitINTERMEDIATELOW
How to fix 'refs/heads/main exists; cannot create' in Git Bundle
The 'refs/heads/main exists; cannot create' error occurs when unbundling a Git bundle file into a repository that already has a reference with the same name. Use git fetch from the bundle instead, or delete the conflicting ref first.
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error: refs/heads/main exists; cannot createDockerBEGINNERLOW
How to fix 'invalid reference format' in Docker
The Docker 'invalid reference format' error means Docker cannot parse your image name. Common causes include uppercase letters, spaces in paths, unset environment variables, or copy-pasted special characters. Fix it by using lowercase names, quoting paths, and verifying your image reference syntax.
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Error response from daemon: invalid reference form...DockerINTERMEDIATEMEDIUM
BuildKit Cache Mount Failed
This error occurs when Docker BuildKit cannot create or access a cache mount during the build process. It is typically caused by permission issues, incorrect mount syntax, or file system constraints.
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failed to solve: failed to prepare cache mount: fa...PythonBEGINNERMEDIUM
How to fix "ValueError: Semaphore released too many times" in Python
This Python error occurred during execution. Check the error message for details on what went wrong and follow the steps below to diagnose and fix the issue.
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ValueError: Semaphore released too many timesDockerINTERMEDIATEMEDIUM
How to fix 'connection reset by peer' in Docker
The 'connection reset by peer' error occurs when the Docker daemon unexpectedly closes the connection to the Docker socket. This typically indicates daemon crashes, resource exhaustion, or socket communication issues.
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error during connect: Post http://%2Fvar%2Frun%2Fd...DockerBEGINNERLOW
How to fix 'address already in use' in Docker
The 'address already in use' error occurs when Docker tries to bind a container port to a host port that's already occupied by another process or container. Identify and stop the conflicting process, or use a different port.
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Error starting userland proxy: listen tcp4 0.0.0.0...DockerBEGINNERLOW
How to fix 'manifest not found' in Docker
The 'manifest not found' or 'manifest unknown' error occurs when Docker cannot locate the image manifest in the registry. This typically happens because the image tag doesn't exist, the image name is misspelled, or the 'latest' tag was never pushed to the repository.
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Error response from daemon: manifest for myimage:l...PythonBEGINNERMEDIUM
How to fix "PytestUnraisableExceptionWarning: Event loop is cl" in Python
This Python error occurred during execution. Check the error message for details on what went wrong and follow the steps below to diagnose and fix the issue.
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PytestUnraisableExceptionWarning: Event loop is cl...DockerBEGINNERMEDIUM
How to fix 'You have reached your pull rate limit' in Docker
The Docker Hub rate limit error occurs when you exceed the allowed number of image pulls. Unauthenticated users are limited to 10 pulls per hour, while authenticated free users get 40 pulls per hour. Fix this by authenticating with Docker Hub, using a registry mirror, or mirroring images to a private registry.
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toomanyrequests: You have reached your pull rate l...DockerBEGINNERLOW
How to fix 'COPY failed: file not found in build context' in Docker
This error occurs when Docker cannot locate a file or directory you're trying to copy during the build process. The file may be outside the build context, excluded by .dockerignore, or the path may be incorrect.
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COPY failed: file not found in build context or ex...PythonBEGINNERMEDIUM
How to fix "websockets.exceptions.ConnectionClosed: WebSocket " in Python
This Python error occurred during execution. Check the error message for details on what went wrong and follow the steps below to diagnose and fix the issue.
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websockets.exceptions.ConnectionClosed: WebSocket ...DockerBEGINNERLOW
How to fix "ADD failed: file not found in build context" in Docker
This error occurs when Docker's ADD or COPY instruction tries to access a file that either doesn't exist in the build context directory, is located outside the context, or is excluded by .dockerignore.
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ADD failed: file not found in build context or exc...ReactINTERMEDIATEMEDIUM
How to fix "revalidatePath can only be used in a Server Action" in React
This Next.js error occurs when attempting to call revalidatePath outside of a Server Action or Route Handler context. The function requires server-side execution and cannot be used in Client Components or browser environments.
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revalidatePath can only be used in a Server ActionDockerINTERMEDIATEHIGH
How to fix Docker OOM Killed (Out of Memory)
This error occurs when a Docker container exceeds its memory limit and the Linux kernel's OOM (Out of Memory) killer terminates it. The fix involves setting appropriate memory limits, optimizing application memory usage, and configuring swap settings.
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Container killed due to OOM (Out of Memory)DockerBEGINNERMEDIUM
How to fix 'two-factor authentication is required' in Docker login
The 'two-factor authentication is required' error occurs when your Docker Hub account has 2FA enabled, but you're trying to log in with your password instead of a Personal Access Token (PAT). Docker Hub requires access tokens for CLI authentication when two-factor authentication is active.
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Error response from daemon: unauthorized: two-fact...DockerBEGINNERLOW
How to fix 'dockerfile parse error: unknown instruction' in Docker
This error occurs when Docker encounters an unrecognized command or malformed syntax in your Dockerfile. Common causes include file encoding issues, missing RUN prefixes, incorrect line continuations, or Windows line endings (CRLF vs LF).
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dockerfile parse error line X: unknown instructionDockerBEGINNERLOW
How to fix 'unable to delete image: image is being used by stopped container' in Docker
The 'unable to delete image - image is being used by stopped container' error occurs when you try to remove a Docker image that still has one or more stopped containers associated with it. Remove the stopped containers first, or use the force flag to delete the image anyway.
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Error response from daemon: conflict: unable to de...PythonBEGINNERMEDIUM
How to fix "jwt.exceptions.ExpiredSignatureError: Signature ha" in Python
This Python error occurred during execution. Check the error message for details on what went wrong and follow the steps below to diagnose and fix the issue.
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jwt.exceptions.ExpiredSignatureError: Signature ha...