自从我开始安装RedMine以来，我一直遇到问题，但是我已经阅读了所有内容。
现在-重新安装并访问网站后，我得到乘客错误屏幕。
每个刷新错误ID都会随机化，因此我在apache中搜索了/var/log/apache2/error.log，在乘客中挖掘了/usr/share/redmine/log/production.log
因此它的输出是
Error.log
[ E 2018-06-27 16:00:11.8755 18052/Tt age/Cor/App/Implementation.cpp:221 ]: Could not spawn process for application /usr/share/redmine: The application process exited prematurely.
Error ID: 75cee840
Error details saved to: /tmp/passenger-error-5eiekf.html
[ E 2018-06-27 16:00:11.8780 18052/Ta age/Cor/Con/CheckoutSession.cpp:276 ]: [Client 2-2] Cannot checkout session because a spawning error occurred. The identifier of the error is 75cee840. Please see earlier logs for details about the error.
Production.log
Migrating to RemovePositionDefaults (20160416072926)
Migrating to AddRolesSettings (20160529063352)
Started GET "/" for 127.0.0.1 at 2018-06-27 14:01:37 +0200
Processing by WelcomeController#index as */*
WARNING: Can't mass-assign protected attributes for AnonymousUser: login
app/models/user.rb:750:in `anonymous'
app/models/user.rb:742:in `current'
app/controllers/application_controller.rb:93:in `user_setup'
Current user: anonymous
Rendered welcome/index.html.erb within layouts/base (43.1ms)
Completed 200 OK in 451ms (Views: 276.7ms | ActiveRecord: 41.3ms)
我也尝试过在日志中访问该html，但是我不知道如何使用，如果我少用它，我会弄乱html文件。
只有我知道匿名用户出错，但是默认情况下不是这样吗？
此外，如果我需要为您提供更多信息，我也会这样做
更新 我通过将ruby降级到2.3.3并“重做”安装redmine的ruby阶段的所有配置来解决它。