when i click "edit task" or "create subtask",it shows 404,and the url is myhost/maniphest/task/edit/1,after i remove "task" from the url,which is :myhost/maniphest/edit/1,it's ok.
how can i fix it?
Please see Contributing Bug Reports for instructions on reporting bugs. The "Common Fixes" section of that document has some common fixes, including "Upgrade Phabricator", which is the most common way to resolve issues.
For instructions on how to upgrade, see Upgrading Phabricator.