I'm experiencing the same issue while trying to recompile and build a project for a customer after a clean macOS Sonoma install and installing Xcode 15.4. When I run pod install, I encounter the following error:
error: EXML::ParseException - #<TypeError: wrong argument type String (expected Regexp)>/Library/Ruby/Gems/2.6.0/gems/rexml-3.2.9/lib/rexml/source.rb:220:in `scan'/Library/Ruby/Gems/2.6.0/gems/rexml-3.2.9/lib/rexml/source.rb:220:in `match'/Library/Ruby/Gems/2.6.0/gems/rexml-3.2.9/lib/rexml/parsers/baseparser.rb:227:in `pull_event'/Library/Ruby/Gems/2.6.0/gems/rexml-3.2.9/lib/rexml/parsers/baseparser.rb:207:in `pull'/Library/Ruby/Gems/2.6.0/gems/rexml-3.2.9/lib/rexml/parsers/treeparser.rb:23:in `parse'/Library/Ruby/Gems/2.6.0/gems/rexml-3.2.9/lib/rexml/document.rb:448:in `build'/Library/Ruby/Gems/2.6.0/gems/rexml-3.2.9/lib/rexml/document.rb:101:in `initialize'/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/workspace.rb:83:in `new'/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/workspace.rb:83:in `from_s'/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/workspace.rb:66:in `new_from_xcworkspace'/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer/user_project_integrator.rb:102:in `create_workspace'/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer/user_project_integrator.rb:71:in `integrate!'/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:929:in `block in integrate_user_project'/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/user_interface.rb:64:in `section'/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:925:in `integrate_user_project'/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:185:in `integrate'/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:170:in `install!'/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/command/install.rb:52:in `run'/Library/Ruby/Gems/2.6.0/gems/claide-1.1.0/lib/claide/command.rb:334:in `run'/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/command.rb:52:in `run'/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/bin/pod:55:in `<top (required)>'/usr/local/bin/pod:23:in `load'/usr/local/bin/pod:23:in `<main>'It seems to be related to the rexml gem. How can I resolve this issue and successfully run pod install?