Flutter 运行颤振项目时出错”；运行pod安装时出错"； 错误

[！]在目标

Runner

上自动分配版本为

8.0

的平台

iOS

，因为未指定平台。请在播客文件中为此目标指定一个平台。参见

https://guides.cocoapods.org/syntax/podfile.html#platform

运行pod安装时出错 在iPhone 8上启动应用程序时出错

ArgumentError - invalid byte sequence in US-ASCII
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/cdn_source.rb:287:in `split'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/cdn_source.rb:287:in `block in ensure_versions_file_loaded'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/cdn_source.rb:286:in `each'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/cdn_source.rb:286:in `reduce'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/cdn_source.rb:286:in `ensure_versions_file_loaded'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/cdn_source.rb:208:in `search'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/source/aggregate.rb:83:in `block in search'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/source/aggregate.rb:83:in `select'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-core-1.9.3/lib/cocoapods-core/source/aggregate.rb:83:in `search'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/resolver.rb:416:in `create_set_from_sources'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/resolver.rb:385:in `find_cached_set'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/resolver.rb:360:in `specifications_for_dependency'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/resolver.rb:165:in `search_for'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/resolver.rb:274:in `block in sort_dependencies'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/resolver.rb:267:in `each'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/resolver.rb:267:in `sort_by'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/resolver.rb:267:in `sort_dependencies'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/molinillo-0.6.6/lib/molinillo/delegates/specification_provider.rb:53:in `block in sort_dependencies'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/molinillo-0.6.6/lib/molinillo/delegates/specification_provider.rb:70:in `with_no_such_dependency_error_handling'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/molinillo-0.6.6/lib/molinillo/delegates/specification_provider.rb:52:in `sort_dependencies'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:754:in `push_state_for_requirements'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:746:in `require_nested_dependencies_for'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:729:in `activate_new_spec'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:686:in `attempt_to_activate'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:254:in `process_topmost_state'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:182:in `resolve'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/molinillo-0.6.6/lib/molinillo/resolver.rb:43:in `resolve'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/resolver.rb:94:in `resolve'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/installer/analyzer.rb:1065:in `block in resolve_dependencies'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/user_interface.rb:64:in `section'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/installer/analyzer.rb:1063:in `resolve_dependencies'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/installer/analyzer.rb:124:in `analyze'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/installer.rb:410:in `analyze'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/installer.rb:235:in `block in resolve_dependencies'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/user_interface.rb:64:in `section'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/installer.rb:234:in `resolve_dependencies'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/installer.rb:156:in `install!'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/command/install.rb:52:in `run'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/claide-1.0.3/lib/claide/command.rb:334:in `run'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/lib/cocoapods/command.rb:52:in `run'
/Users/papps/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0/gems/cocoapods-1.9.3/bin/pod:55:in `<top (required)>'
/usr/local/bin/pod:23:in `load'
/usr/local/bin/pod:23:in `<main>'
/Users/papps/.rvm/rubies/ruby-2.7.0/bin/ruby_executable_hooks:24:in `eval'
/Users/papps/.rvm/rubies/ruby-2.7.0/bin/ruby_executable_hooks:24:in `<main>'

export LANG=en_US.UTF-8