Cannot install forest admin - Zietwork error

Help me!
1

I’m trying to install Forest Admin on a new rails application. I have them gem installed and I’m running rails g forest_liana:install {key redacted}

When I run this I get the following Zeitwork error

/Users/hummingbear/.rvm/gems/ruby-3.0.2/gems/zeitwerk-2.4.2/lib/zeitwerk/loader/callbacks.rb:18:in `on_file_autoloaded': 

expected file /Users/hummingbear/.rvm/gems/ruby-3.0.2/gems/forest_liana-7.0.0/app/services/forest_liana/forest_api_requester.rb 

to define constant ForestLiana::ForestAPIRequester, but didn't (Zeitwerk::NameError)

Context

Rails 6.1.4
Ruby 3.0.2
pg 1.2.3
postgres 13
forest_liana 7.0.0

Thanks!

2

Hi @KidA001 !
I’m not fluent un ruby, however I found this stackoverflow post maybe it can solve your issue…

3

Thank you - It seems like the forest gem has not yet been setup to work with Rails 6. Changing the config to use the old autoloader fixed Forest

4

Has anyone come up with better solutions here? I’m trying to install ForestAdmin on a pre-existing Rails app that uses Zeitwerk. Turning the loader back to “classic” isn’t really an option. I’m currently stuck trying to install ForestAdmin.

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5

I would appreciate a solution too. I’m using rails 7 and would like to take advantage of zietwork loading.

6

hello @KidA001

I can’t reproduce this issue on my end, but could you execute these 2 commands and share the result please.

bin/rails zeitwerk:check
bin/rails runner 'p Rails.autoloaders.zeitwerk_enabled?'

Is your rails 6 a fresh install or an old rails 5 you migrated to rails 6 ?

7

Actually it must have been my last project on rails 6. My current rails 7 is on zeitwerk with no issues. I’ll try with my old project and see.

8

Thanks for your assistance. I tried running both commands, and both commands failed with the error:

Just FYI, I am running Rails 6 at the moment, and Zeitwerk is definitely enabled.

expected file /tmp/volumes/gems/gems/forest_liana-7.4.5/app/services/forest_liana/ip_whitelist_checker.rb to define constant ForestLiana::IPWhitelistChecker, but didn't (Zeitwerk::NameError)
9

Hello @ryangerard

It looks like your rails6 doesn’t load correctly the ip_whitelist_checker file.

Could you add this line into your config/initializers/inflections.rb

Rails.autoloaders.main.inflector.inflect("ip_whitelist_checker" => "IpWhitelistChecker")
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10

I’m back to try this again two years later, and this worked! I also needed to add an inflection for “ip_whitelist” => “IpWhitelist”, but it looks like it’s installed!

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