当我尝试运行rails项目时，收到以下LoadError：
randomize/Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/bcrypt-3.1.11/lib/bcrypt.rb:16：在`require'中：不兼容的库版本-/ Users / marko / WebDevSchool / hello_U_official_files / helloU / vendor / ruby / 2.5.0 / gems / bcrypt-3.1.11 / lib / bcrypt_ext.bundle（LoadError）
我尝试过：
Traceback (most recent call last):
22: from bin/rails:4:in `<main>'
21: from bin/rails:4:in `require'
20: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands.rb:18:in `<top (required)>'
19: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/railties-5.2.0/lib/rails/command.rb:46:in `invoke'
18: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/railties-5.2.0/lib/rails/command/base.rb:65:in `perform'
17: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
16: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
15: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
14: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:142:in `perform'
13: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:142:in `tap'
12: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:145:in `block in perform'
11: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/railties-5.2.0/lib/rails/commands/server/server_command.rb:145:in `require'
10: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/config/application.rb:8:in `<top (required)>'
9: from /Users/marko/.rvm/gems/ruby-2.5.1/gems/bundler-1.16.3/lib/bundler.rb:114:in `require'
8: from /Users/marko/.rvm/gems/ruby-2.5.1/gems/bundler-1.16.3/lib/bundler/runtime.rb:65:in `require'
7: from /Users/marko/.rvm/gems/ruby-2.5.1/gems/bundler-1.16.3/lib/bundler/runtime.rb:65:in `each'
6: from /Users/marko/.rvm/gems/ruby-2.5.1/gems/bundler-1.16.3/lib/bundler/runtime.rb:76:in `block in require'
5: from /Users/marko/.rvm/gems/ruby-2.5.1/gems/bundler-1.16.3/lib/bundler/runtime.rb:76:in `each'
4: from /Users/marko/.rvm/gems/ruby-2.5.1/gems/bundler-1.16.3/lib/bundler/runtime.rb:81:in `block (2 levels) in require'
3: from /Users/marko/.rvm/gems/ruby-2.5.1/gems/bundler-1.16.3/lib/bundler/runtime.rb:81:in `require'
2: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/bcrypt-3.1.11/lib/bcrypt.rb:12:in `<top (required)>'
1: from /Users/marko/WebDevSchool/hello_U_official_files/helloU/vendor/ruby/2.5.0/gems/bcrypt-3.1.11/lib/bcrypt.rb:16:in `rescue in <top (required)>'
gem pristine --all和gem uninstall bcrypt
gem install bcrypt和gem uninstall railties
到目前为止什么都没做