[Solved] In a CI pipeline, the command docker build -t app . fails with:failed to solve: rpc error: code = Unknown desc = failed to copy files: no such file or directoryWhat is the most probable fix? | Docker

Docker - in CI/CD

In a CI pipeline, the command docker build -t app . fails with:

failed to solve: rpc error: code = Unknown desc = failed to copy files: no such file or directory

What is the most probable fix?

AChange the image tag to a valid name

BRestart the Docker daemon

CCheck that all files referenced in Dockerfile exist in the build context

DRun the build command with sudo

Step-by-Step Solution

Solution:

Step 1: Understand error meaning
Build failed because a file needed during build is missing in the context.
Step 2: Identify fix
Ensure all files COPY or ADDed in Dockerfile exist in the directory sent to docker build.
Final Answer:
Check that all files referenced in Dockerfile exist in the build context -> Option C
Quick Check:
Missing files cause build copy errors [OK]

Quick Trick: Verify all Dockerfile files exist in build folder [OK]

Common Mistakes:

Master "in CI/CD" in Docker

9 interactive learning modes - each teaches the same concept differently

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