Add explicit nkf, base64 dependency to fix CFPropertyList issue on Ruby 3.4

Author: amorde

CHANGELOG.md

@@ -8,7 +8,9 @@
 
 ##### Bug Fixes
 
-* None.  
+* Fix `cannot load such file -- kconv`, `cannot load such file -- base64` crash when running on Ruby 3.4.  
+  [Eric Amorde](https://github.com/amorde)
+  [#1046](https://github.com/CocoaPods/Xcodeproj/pull/1046)
 
 
 ## 1.28.0 (2026-07-06)

Gemfile.lock

@@ -17,9 +17,11 @@ PATH
     xcodeproj (1.28.0)
       CFPropertyList (>= 2.3.3, < 4.0)
       atomos (~> 0.1.3)
+      base64
       claide (>= 1.0.2, < 2.0)
       colored2 (~> 3.1)
       nanaimo (~> 0.4.0)
+      nkf
       rexml (>= 3.3.6, < 4.0)
 
 GEM
@@ -31,6 +33,7 @@ GEM
     ast (2.4.3)
     atomos (0.1.3)
     bacon (1.2.0)
+    base64 (0.3.0)
     claide-plugins (0.9.2)
       cork
       nap
@@ -75,6 +78,7 @@ GEM
     multipart-post (2.1.1)
     nanaimo (0.4.0)
     nap (1.1.0)
+    nkf (0.3.0)
     notify (0.5.2)
     octokit (4.21.0)
       faraday (>= 0.9)

spec/project/object_spec.rb

@@ -158,10 +158,18 @@ module ProjectSpecs
       end
 
       it 'warns if it encounters an unknown attribute in a plist' do
-        UI.expects(:warn).with "[!] Xcodeproj doesn't know about the following " \
+        if Gem::Requirement.new('>= 3.4.0').satisfied_by?(Gem::Version.new(RUBY_VERSION))
+          UI.expects(:warn).with "[!] Xcodeproj doesn't know about the following " \
+                                 "attributes {\"unknown_attribute\" => \"might be a reference\"} for the 'PBXFileReference' isa." \
+                                 "\nIf this attribute was generated by Xcode please file " \
+                                 'an issue: https://github.com/CocoaPods/Xcodeproj/issues/new'
+        else
+          UI.expects(:warn).with "[!] Xcodeproj doesn't know about the following " \
                                "attributes {\"unknown_attribute\"=>\"might be a reference\"} for the 'PBXFileReference' isa." \
                                "\nIf this attribute was generated by Xcode please file " \
                                'an issue: https://github.com/CocoaPods/Xcodeproj/issues/new'
+        end
+
         @objects_by_uuid_plist[@object.uuid]['unknown_attribute'] = 'might be a reference'
         @object.configure_with_plist(@objects_by_uuid_plist)
       end

xcodeproj.gemspec

@@ -27,6 +27,8 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'colored2',       '~> 3.1'
   s.add_runtime_dependency 'nanaimo',        '~> 0.4.0'
   s.add_runtime_dependency 'rexml',          '>= 3.3.6', '< 4.0'
+  s.add_runtime_dependency 'nkf' # required for older CFPropertyList versions on Ruby 3.4
+  s.add_runtime_dependency 'base64' # required for older CFPropertyList versions on Ruby 3.4
 
   ## Make sure you can build the gem on older versions of RubyGems too:
   s.rubygems_version = '1.6.2'