MasterPage Error (Parser) Could not load type 'filename'

dt86uk — Mon, 16 Mar 2009 04:00:00 GMT

Hello everyone,

This is my first post and i'm a beginner at Visual Studio. After plenty research im aware that this problem is a persistant one in many instances, just not one as similar as mine. So far I've been developing my Web Site and when I have gone to view my web site (Ctrl+F5) i'm presented with the following error. Of which i have no idea what it means as the file IS actually there, im baffled.

Additional Info: I'm using Visual Studio 2008 and its being coded in C#

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: Could not load type 'where2Party.Master'.

Source Error:

Line 1:  <%@ Master Language="C#" AutoEventWireup="true" CodeBehind="where2party.master.cs" Inherits="where2Party.Master" %>
Line 2:  
Line 3:  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

Source File: /Where2Party/where2party.Master Line: 1

Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053

how to parse a web page?

test84 — Mon, 21 May 2007 04:00:00 GMT

Hi! I wanted to parse a page each day and get some numbers from it, how can i do it in asp.net? is there any controls that speeds up my coding? i heard some ppl use regular expressions, should i use them too? thnx in advance.

Showstopper parser/compilation issue

SWarren — Mon, 11 Dec 2006 05:00:00 GMT

I'm seeing an unusual parser/compilation issue with an ASP.NET 2.0 application I need help with. I've deployed a few commercial ASP.NET 2.0 apps already (including one really big one: ~1M visitors/day) but it's the first time I've seen this issue. From my Google searches it appears this question has been asked before only once --here on these forums-- but not answered. This bug is a showstopper for our current project; we can't deploy because of it.

Once the application gets into the error state, I see one of these two error messages for all pages. For simple .ASPX pages, the error is:

Unable to cast object of type 'System.Web.Compilation.BuildResultCompiledAssembly' to type 'System.Web.Util.ITypedWebObjectFactory'.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidCastException: Unable to cast object of type 'System.Web.Compilation.BuildResultCompiledAssembly' to type 'System.Web.Util.ITypedWebObjectFactory'.

Stack Trace:

[InvalidCastException: Unable to cast object of type 'System.Web.Compilation.BuildResultCompiledAssembly' to type 'System.Web.Util.ITypedWebObjectFactory'.]
System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +123
System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +54
System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +31
System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +40
System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +139
System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +120
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

For pages with user controls, the issue manifests itself as a nonsense parser error:

Parser Error Message: The file 'src' is not a valid here because it doesn't expose a type.

Source Error:

Line 1:  <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Profile.aspx.cs" Inherits="RDWeb.Profile" %>
Line 2:  
Line 3:  <%@ Register src="Controls/PostList.ascx" TagName="PostList" TagPrefix="rd" %>
Line 4:  <%@ Register src="Controls/Expertise.ascx" TagName="Expertise" TagPrefix="rd" %>
Line 5:  <%@ Register src="Controls/Activities.ascx" TagName="Activities" TagPrefix="rd" %>

Source File: /profile.aspx Line: 3

Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.210

The only way I've found to "reset" the web site is to replace the DLL file in \bin. The usual means of app domain recycling (IISRESET, change web.config) do not clear this error. Unfortunately the "fix" doesn't last long... the site returns to this state quickly, usually within an hour.

Can anyone tell me what this issue is, and how to resolve it?

thanks!
Susan

Search results matching tag 'Parser'

MasterPage Error (Parser) Could not load type 'filename'

Parser Error

how to parse a web page?

Showstopper parser/compilation issue

Unable to cast object of type 'System.Web.Compilation.BuildResultCompiledAssembly' to type 'System.Web.Util.ITypedWebObjectFactory'.