Magento 2管理员用户角色页面显示空白

In magento 2.2.0, user role pages shows blank. What missed in this?
- I cleared cache.
- Removed var/cache
- Removed var/page_cache
- Removed var/view_preprocessed
- run php bin/magento setup:static-content:deploy

Is any other issue in this version or anything have to do?.,

The issue is that one of your modules doesn't have a title defined in the acl.xml file. The easiest way to fix this is to update in src/vendor/magento/module-integration/Helper/Data.php to have:

$item['data'] = isset($resource['title']) ? $resource['title'] : '';

This will enable the UI to load but for one or many of the modules will have a blank space next to the folder. You then need to let the module developer know to fix the issue, but as a short term fix just add a title attribute to the acl.xml for the module yourself. You can work out which module by inspecting the element.