rails 6 webpacker in production: rake assets:precompile fails

问题

I have a typical rails 6.0.2 app set up on a production server and I'm using git hooks to deploy the app. When I try to run: rails assets:precompile I get the following error:

rake aborted!
Sprockets::ArgumentError: link_directory argument must be a directory
/home/user/myapp/app/assets/config/manifest.js:2

Here is the manifest.js file

//= link_tree ../images
//= link_directory ../stylesheets .css

I cant figure out what Im doing wrong. Unless I'm mistaken, doesn't webpacker replace sprockets?

回答1:

In manifest.js, your error tells that in manifest.js line 2, link_directory argument must be a directory, and not a file. It should probably look like this

//= link_directory ../stylesheets .css

If you notice there is gap between stylesheets and .css, it means that link all the css files from stylesheets directory, there must be some formatting problem in your code. Fix it and it should work!

回答2:

double check all the asset folder for an empt .keep file

common culprit could be images folder

this post may also help out

require_tree argument must be a directory in a Rails 5 upgraded app

回答3:

For anyone else who got this error, I simply added a directory in assets, called stylesheets, and added a file .keep within it. That fixed my problem.

来源：https://stackoverflow.com/questions/60216082/rails-6-webpacker-in-production-rake-assetsprecompile-fails