Server Error in tag Application can't load master page tag

Question

I have this error and i don't know how to fix it, the master page is there and linked properly:

Server Error in '/' Application.

Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

Parser Error Message: The file '/AEDMasterPage.master' does not exist.

Source Error:

Line 1: <%@ Page Title="" Language="C#" MasterPageFile="~/AEDMasterPage.master" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> Line 2:
Line 3:

Answer 1

change

_Default 

to

Default

and make sure path of master file is correct this is the simple error that file path is not valid