Option Strict On does not allow narrowing in implicit type conversions between method and delegate

Error: Option Strict On does not allow narrowing in implicit type conversions between method 'context_beginRequest<ByVal sender As Object, ByVal e As WindowsAuthenticationEventArgs>' and delegate '<BeginRequest>'

For the code:

Public Sub Init(ByVal context As System.Web.HttpApplication) Implements System.Web.IHttpModule.Init
    'context.
    AddHandler context.BeginRequest, New EventHandler(AddressOf context_BeginRequest)
End Sub

context_BeginRequest function::

Public Sub context_BeginRequest(ByVal sender As Object, ByVal e As WindowsAuthenticationEventArgs)
.....

..... End Sub