Can't figure out invalid ELF headers error

[hobgoblina]

Issue or Feature

Issue

Steps to Reproduce

Canvas was installed as a dependency for the pdf-img-convert module, and is throwing an ELF header error that's preventing my docker container from spinning up. Here's a related issue I made in the pdf-img-convert repo ol-th/pdf-img-convert.js#7

I've got node_modules in my .dockerignore and have tried things mentioned elsewhere like removing the contents of node_modules and reinstalling - no dice. I haven't ran into this issue with any other modules in this environment.

Your Environment

• Version of node-canvas (output of npm list canvas or yarn list canvas): 2.6.1
• Environment (e.g. node 4.2.0 on Mac OS X 10.8): node 13.6 in a docker container

[zbjornson]

That most likely means that the MacOS or Win canvas build is being used on Linux. I don't have much experience with Docker to provide any guidance on how to fix it, but one way or another the npm install step needs to run on Linux so the correct build is downloaded.

[gagangoku]

In my case I had to add node_modules to the .dockerignore file