13: from /usr/local/bin/pod:23:in `<main>'
12: from /usr/local/bin/pod:23:in `load'
11: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0.beta.2/bin/pod:55:in `<top (required)>'
10: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0.beta.2/lib/cocoapods/command.rb:52:in `run'
9: from /Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:324:in `run'
8: from /Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:337:in `rescue in run'
7: from /Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:396:in `handle_exception'
6: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0.beta.2/lib/cocoapods/command.rb:66:in `report_error'
5: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0.beta.2/lib/cocoapods/user_interface/error_report.rb:30:in `report'
4: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0.beta.2/lib/cocoapods/user_interface/error_report.rb:105:in `markdown_podfile'
3: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0.beta.2/lib/cocoapods/config.rb:226:in `podfile_path'
2: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0.beta.2/lib/cocoapods/config.rb:166:in `installation_root'
1: from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0.beta.2/lib/cocoapods/config.rb:166:in `unicode_normalize'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/unicode_normalize/normalize.rb:141:in `normalize': Unicode Normalization not appropriate for ASCII-8BIT (Encoding::CompatibilityError)
我面临这些错误，不知道为什么当我运行 pod update 时会出现此错误。有什么解决办法吗？？