上次部署完Redmine，登陆后，进入个人页面或设置中，就会提示500 Internal error错误：

Internalerror
Anerroroccurredonthepageyouweretryingtoaccess.
IfyoucontinuetoexperienceproblemspleasecontactyourRedmineadministratorforassistance.
IfyouaretheRedmineadministrator,checkyourlogfilesfordetailsabouttheerror.

但首页等地方，却没有问题，翻阅资料查出可能是language的问题

cd/var/www/redmine
vimapp/helpers/application_helper.rb

定位到这段代码

deflang_options_for_select(blank=true)
(blank?[["(auto)",""]]:[])+languages_options
end

替换成

deflang_options_for_select(blank=true)
(blank?[["(auto)",""]]:[])+valid_languages.collect{|lang|[ll(lang.to_s,:general_lang_name),lang.to_s]}.sort{|x,y|x.last<=>y.last}
end

最后重启下httpd

systemctlrestarthttpd.service

再次访问网页，错误消失。