[Solved] A Dockerfile has this line:COPY package.json /app/but the build fails with 'no such file or directory'. What should you check? | Remix

Remix - Deployment

A Dockerfile has this line:

COPY package.json /app/

but the build fails with 'no such file or directory'. What should you check?

AAdd EXPOSE before COPY command.

BEnsure package.json exists in the build context folder.

CChange COPY to RUN for copying files.

DRemove WORKDIR command.

Step-by-Step Solution

Solution:

Step 1: Understand COPY command
COPY copies files from build context (local folder) into container.
Step 2: Check file presence
If package.json is missing locally, COPY fails; other options do not fix missing file error.
Final Answer:
Ensure package.json exists in the build context folder. -> Option B
Quick Check:
COPY source file must exist locally [OK]

Quick Trick: COPY source files must be in build folder [OK]

Common Mistakes:

MISTAKES

Master "Deployment" in Remix

9 interactive learning modes - each teaches the same concept differently

More Remix Quizzes

A Dockerfile has this line: