当登录我的drupal 7作为管理用户时，我无法访问我的自定义内容类型的"管理字段" 或"管理显示" 。
When in logged in to my Drupal 7 install as the administrative user, I can't access the "Manage fields" or "Manage Display" for my custom content types.
I've tried all the following with no joy:
I'm pretty sure I'm not using the hook_drupal_break hook anywhere!
I've got NO IDEA what I've done wrong. It used to work, but now I can't access it.
I feel so stupid. But I'm leaving this answer so that the next person to have this same problem will save 3 days of development time:
The module that allows fields to be created on entities (nodes, user etc.) is creatively called "Field".
But, that doesn't mean you'll have a UI to create/edit them. There is another creatively named module called "Field UI". If this modules isn't installed AND enabled you won't have a user interface to edit your fields...
If you did the above answer, and it is still not working - check if you have disabled Developer Modules by hovering the "HOME" in the administration menu and see if it says "Enable developer modules".
Disabling developer modules will disable Fields UI and Views UI.. even if you activate the modules manually you wont be able to edit views or fields - so check if Dev. Modules is enabled.