Unable to configure pages after liferay 7 GA2 upgrade

[Manish Yadav，修改在7 年前。]

Hi All,
After upgrading site from liferay 6.2 to liferay 7 ,We are facing some wired issues.

1 ) Unable to configure site pages [Changing layout and themes]
while trying to configure page its showing below message
liferay log says: 21:06:22,556 WARN [http-nio-9090-exec-3][code_jsp:181] {code="404", msg="/~/control_panel/manage", uri=/~/control_panel/manage}