Sprocket error at install

[Ruff9]

My app (Rails 6.1.3 / Administrate v0.16) was working before I tried to integrate this plugin.

I just added the gem and bundle, and now I get this error when I load any administrate page :

Sprockets::Rails::Helper::AssetNotPrecompiled in Admin::Users#index

Showing /app_path/app/views/admin/application/_stylesheet.html.erb where line #11 raised:
administrate-field-nested_has_many/application.css
Extracted source (around line #11):

9     
10    <% Administrate::Engine.stylesheets.each do |css_path| %>
11      <%= stylesheet_link_tag css_path %>
12    <% end %>
13

Application Trace | Framework Trace | Full Trace
app/views/admin/application/_stylesheet.html.erb:11
app/views/admin/application/_stylesheet.html.erb:10:in `each'
app/views/admin/application/_stylesheet.html.erb:10
app/views/layouts/admin/application.html.erb:24 

[Ruff9]

There is a current PR addressing this issue : #45

If you have this pb, you can use this workaround by @pablobm : https://stackoverflow.com/questions/67762580/rails-6-administrate-sprocket-error-when-installing-administrate-field-neste