We have a rails app which is throwing the following exception on startup on Apple Silicon Macs. The same codebase works on Intel Macs.
$ rails c
Traceback (most recent call last):
42: from ./bin/rails:4:in `<main>'
41: from ./bin/rails:4:in `require'
40: from /Users/user/.gem/ruby/2.7.0/gems/railties-6.0.3.4/lib/rails/commands.rb:18:in `<top (required)>'
39: from /Users/user/.gem/ruby/2.7.0/gems/railties-6.0.3.4/lib/rails/command.rb:46:in `invoke'
38: from /Users/user/.gem/ruby/2.7.0/gems/railties-6.0.3.4/lib/rails/command/base.rb:69:in `perform'
37: from /Users/user/.gem/ruby/2.7.0/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
36: from /Users/user/.gem/ruby/2.7.0/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
35: from /Users/user/.gem/ruby/2.7.0/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
34: from /Users/user/.gem/ruby/2.7.0/gems/railties-6.0.3.4/lib/rails/commands/console/console_command.rb:101:in `perform'
33: from /Users/user/.gem/ruby/2.7.0/gems/railties-6.0.3.4/lib/rails/command/actions.rb:14:in `require_application_and_environment!'
32: from /Users/user/.gem/ruby/2.7.0/gems/railties-6.0.3.4/lib/rails/command/actions.rb:22:in `require_application!'
31: from /Users/user/.gem/ruby/2.7.0/gems/railties-6.0.3.4/lib/rails/command/actions.rb:22:in `require'
30: from /Users/user/Code/appname/config/application.rb:7:in `<top (required)>'
29: from /opt/local/lib/ruby2.7/2.7.0/bundler.rb:174:in `require'
28: from /opt/local/lib/ruby2.7/2.7.0/bundler/runtime.rb:58:in `require'
27: from /opt/local/lib/ruby2.7/2.7.0/bundler/runtime.rb:58:in `each'
26: from /opt/local/lib/ruby2.7/2.7.0/bundler/runtime.rb:69:in `block in require'
25: from /opt/local/lib/ruby2.7/2.7.0/bundler/runtime.rb:69:in `each'
24: from /opt/local/lib/ruby2.7/2.7.0/bundler/runtime.rb:74:in `block (2 levels) in require'
23: from /opt/local/lib/ruby2.7/2.7.0/bundler/runtime.rb:74:in `require'
22: from /Users/user/.gem/ruby/2.7.0/gems/sassc-rails-2.1.2/lib/sassc-rails.rb:3:in `<top (required)>'
21: from /Users/user/.gem/ruby/2.7.0/gems/sassc-rails-2.1.2/lib/sassc-rails.rb:3:in `require_relative'
20: from /Users/user/.gem/ruby/2.7.0/gems/sassc-rails-2.1.2/lib/sassc/rails.rb:5:in `<top (required)>'
19: from /Users/user/.gem/ruby/2.7.0/gems/activesupport-6.0.3.4/lib/active_support/dependencies.rb:324:in `require'
18: from /Users/user/.gem/ruby/2.7.0/gems/activesupport-6.0.3.4/lib/active_support/dependencies.rb:291:in `load_dependency'
17: from /Users/user/.gem/ruby/2.7.0/gems/activesupport-6.0.3.4/lib/active_support/dependencies.rb:324:in `block in require'
16: from /Users/user/.gem/ruby/2.7.0/gems/activesupport-6.0.3.4/lib/active_support/dependencies.rb:324:in `require'
15: from /Users/user/.gem/ruby/2.7.0/gems/sassc-2.4.0/lib/sassc.rb:31:in `<top (required)>'
14: from /Users/user/.gem/ruby/2.7.0/gems/sassc-2.4.0/lib/sassc.rb:31:in `require_relative'
13: from /Users/user/.gem/ruby/2.7.0/gems/sassc-2.4.0/lib/sassc/native.rb:5:in `<top (required)>'
12: from /Users/user/.gem/ruby/2.7.0/gems/sassc-2.4.0/lib/sassc/native.rb:6:in `<module:SassC>'
11: from /Users/user/.gem/ruby/2.7.0/gems/sassc-2.4.0/lib/sassc/native.rb:16:in `<module:Native>'
10: from /Users/user/.gem/ruby/2.7.0/gems/sassc-2.4.0/lib/sassc/native.rb:16:in `require_relative'
9: from /Users/user/.gem/ruby/2.7.0/gems/sassc-2.4.0/lib/sassc/native/sass_value.rb:3:in `<top (required)>'
8: from /Users/user/.gem/ruby/2.7.0/gems/sassc-2.4.0/lib/sassc/native/sass_value.rb:4:in `<module:SassC>'
7: from /Users/user/.gem/ruby/2.7.0/gems/sassc-2.4.0/lib/sassc/native/sass_value.rb:52:in `<module:Native>'
6: from /Users/user/.gem/ruby/2.7.0/gems/sassc-2.4.0/lib/sassc/native/sass_value.rb:53:in `<class:SassList>'
5: from /Users/user/.gem/ruby/2.7.0/gems/ffi-1.13.1/lib/ffi/struct.rb:217:in `layout'
4: from /Users/user/.gem/ruby/2.7.0/gems/ffi-1.13.1/lib/ffi/struct.rb:311:in `array_layout'
3: from /Users/user/.gem/ruby/2.7.0/gems/ffi-1.13.1/lib/ffi/struct.rb:271:in `find_field_type'
2: from /Users/user/.gem/ruby/2.7.0/gems/ffi-1.13.1/lib/ffi/struct.rb:277:in `find_type'
1: from /Users/user/.gem/ruby/2.7.0/gems/ffi-1.13.1/lib/ffi/library.rb:589:in `find_type'
/Users/user/.gem/ruby/2.7.0/gems/ffi-1.13.1/lib/ffi/types.rb:69:in `find_type': unable to resolve type 'size_t' (TypeError)
We have a rails app which is throwing the following exception on startup on Apple Silicon Macs. The same codebase works on Intel Macs.