CodePudding user response:

Prompt information write very clear, in the division of the statement can not specify different base class, you map the class inheritance in Page, another of the same name class division is surely not inherit in Page, check the code again

CodePudding user response:

You is partial distribution class, you see if other places, has inherited the different base class

CodePudding user response:

There may be another AppClientInfoPage, but not integrated from the Page.

CodePudding user response:

WPF? See your xaml file