could not load file or assembly ASP_WEB_... in ASP.NET 2.0

[urs]

Two days ago, I built an ASP.NET 2.0 application and published it on a
shared IIS 6 Web server. After publishing, and during the whole day, it
worked fine.

The server remained untouched since. Today, I wanted to access the home
page of the application again with a browser. But instead of the proper
page, I just got an ugly message:

Server Error in '/' Application.

Could not load file or assembly 'App_Web_rsznkz do, Version=0.0.0.0 ,
Culture=neutral , PublicKeyToken= null' or one of its dependencies. The
system cannot find the file specified.

the stack trace reads as follows:
[FileNotFoundExc eption: Could not load file or assembly
'App_Web_rsznkz do, Version=0.0.0.0 , Culture=neutral ,
PublicKeyToken= null' or one of its dependencies. The system cannot find
the file specified.]
ASP.usercontrol s_nav_ascx.__Bu ildControlTree( usercontrols_na v_ascx
__ctrl) +0
ASP.usercontrol s_nav_ascx.Fram eworkInitialize () +21
System.Web.UI.U serControl.Init ializeAsUserCon trolInternal() +31
System.Web.UI.U serControl.Init ializeAsUserCon trol(Page page) +14
ASP.catalog_mai n_aspx.__BuildC ontroln1() +53
ASP.catalog_mai n_aspx.__BuildC ontroll(Control __ctrl) +51
System.Web.UI.C ompiledTemplate Builder.Instant iateIn(Control
container) +12
ASP.masterpages _3col_master.__ BuildControll() +105
ASP.masterpages _3col_master.__ BuildControlf() +118

ASP.masterpages _3col_master.__ BuildControlTre e(masterpages_3 col_master
__ctrl) +136
ASP.masterpages _3col_master.Fr ameworkInitiali ze() +45
System.Web.UI.U serControl.Init ializeAsUserCon trolInternal() +31
System.Web.UI.M asterPage.Creat eMaster(Templat eControl owner,
HttpContext context, VirtualPath masterPageFile, IDictionary
contentTemplate Collection) +1978544
System.Web.UI.P age.get_Master( ) +48
System.Web.UI.P age.ApplyMaster Page() +18
System.Web.UI.P age.ProcessRequ estMain(Boolean
includeStagesBe foreAsyncPoint, Boolean includeStagesAf terAsyncPoint)
+543

Version Information: Microsoft .NET Framework Version:2.0.507 27.42;
ASP.NET Version:2.0.507 27.42
It seems to me like somehow ASP.NET disposed the generated assemblies
in the meantime. Please notice that this application was published by
XCOPY over FTP, that means it is not a precompiled app or something
like this.

How can that happen? I know that I could probably resolve the problem
with restarting IIS, but since I am not the ISP hosting this site, it
is not in my power. Anyway, I think this is a real bug, since I cannot
tell my ISP to just restart the IIS process every now and then. Does
anyone has an idea what is happening here?

Thanks for any help
Urs

[Steven Cheng[MSFT]]

Hi Urs,

Welcome to ASPNET newsgroup.
From your description, you've deployed an ASP.NET 2.0 web application onto
a hosting server, the application run well intially , but now you're
encountering "cound not load file or assembly..." error when try visting
the web application's home page, yes?

From the callstack and error info, it seems that the page is try locating a
dynamic compiled UserControl class's assembly. Is your web application
purely dynamically compiled without any precompilation? Also, how is the
usercontrol referenced in the home page, is it statically declare in the
aspx template or created dynamically and added into the page's control
collection? Based on my experience, since asp.net 2.0 dynamic compilation
will compile pages or usercontrols in different assemblies, if we dosn't
explictly reference usercontrol (through @reference or @register directive
) in aspx page, the page may fail to locate the Usercontrol's dynamic
generated assembly..... So if this is the case, you can use the following
directive to explicitly reference the usercontrol file in your page which
use that usercontrol:

<%@ Reference VirtualPath="~/Products.ascx" %>

elsewise, I'll do some further research on this...

Thanks,

Steven Cheng
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)
--------------------
| From: ur*@prismanet.c h
| Newsgroups: microsoft.publi c.dotnet.framew ork.aspnet
| Subject: could not load file or assembly ASP_WEB_... in ASP.NET 2.0
| Date: 21 Dec 2005 12:32:09 -0800
| Organization: http://groups.google.com
| Lines: 62
| Message-ID: <11************ **********@g47g 2000cwa.googleg roups.com>
| NNTP-Posting-Host: 84.73.233.50
| Mime-Version: 1.0
| Content-Type: text/plain; charset="iso-8859-1"
| X-Trace: posting.google. com 1135197134 21790 127.0.0.1 (21 Dec 2005
20:32:14 GMT)
| X-Complaints-To: gr**********@go ogle.com
| NNTP-Posting-Date: Wed, 21 Dec 2005 20:32:14 +0000 (UTC)
| User-Agent: G2/0.2
| X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.8)
Gecko/20051111 Firefox/1.5,gzip(gfe),g zip(gfe)
| Complaints-To: gr**********@go ogle.com
| Injection-Info: g47g2000cwa.goo glegroups.com; posting-host=84.73.233. 50;
| posting-account=hmlk0A0 AAABA00P_j215Tr NL0lU6v41c
| Path:
TK2MSFTNGXA02.p hx.gbl!TK2MSFTN GP08.phx.gbl!ne wsfeed00.sul.t-online.de!t-onli
ne.de!border2.n ntp.dca.giganew s.com!border1.n ntp.dca.giganew s.com!nntp.giga n
ews.com!postnew s.google.com!g4 7g2000cwa.googl egroups.com!not-for-mail
| Xref: TK2MSFTNGXA02.p hx.gbl
microsoft.publi c.dotnet.framew ork.aspnet:3663 84
| X-Tomcat-NG: microsoft.publi c.dotnet.framew ork.aspnet
|
| Two days ago, I built an ASP.NET 2.0 application and published it on a
| shared IIS 6 Web server. After publishing, and during the whole day, it
| worked fine.
|
| The server remained untouched since. Today, I wanted to access the home
| page of the application again with a browser. But instead of the proper
| page, I just got an ugly message:
|
| Server Error in '/' Application.
|
| Could not load file or assembly 'App_Web_rsznkz do, Version=0.0.0.0 ,
| Culture=neutral , PublicKeyToken= null' or one of its dependencies. The
| system cannot find the file specified.
|
| the stack trace reads as follows:
| [FileNotFoundExc eption: Could not load file or assembly
| 'App_Web_rsznkz do, Version=0.0.0.0 , Culture=neutral ,
| PublicKeyToken= null' or one of its dependencies. The system cannot find
| the file specified.]
| ASP.usercontrol s_nav_ascx.__Bu ildControlTree( usercontrols_na v_ascx
| __ctrl) +0
| ASP.usercontrol s_nav_ascx.Fram eworkInitialize () +21
| System.Web.UI.U serControl.Init ializeAsUserCon trolInternal() +31
| System.Web.UI.U serControl.Init ializeAsUserCon trol(Page page) +14
| ASP.catalog_mai n_aspx.__BuildC ontroln1() +53
| ASP.catalog_mai n_aspx.__BuildC ontroll(Control __ctrl) +51
| System.Web.UI.C ompiledTemplate Builder.Instant iateIn(Control
| container) +12
| ASP.masterpages _3col_master.__ BuildControll() +105
| ASP.masterpages _3col_master.__ BuildControlf() +118
|
| ASP.masterpages _3col_master.__ BuildControlTre e(masterpages_3 col_master
| __ctrl) +136
| ASP.masterpages _3col_master.Fr ameworkInitiali ze() +45
| System.Web.UI.U serControl.Init ializeAsUserCon trolInternal() +31
| System.Web.UI.M asterPage.Creat eMaster(Templat eControl owner,
| HttpContext context, VirtualPath masterPageFile, IDictionary
| contentTemplate Collection) +1978544
| System.Web.UI.P age.get_Master( ) +48
| System.Web.UI.P age.ApplyMaster Page() +18
| System.Web.UI.P age.ProcessRequ estMain(Boolean
| includeStagesBe foreAsyncPoint, Boolean includeStagesAf terAsyncPoint)
| +543
|
| Version Information: Microsoft .NET Framework Version:2.0.507 27.42;
| ASP.NET Version:2.0.507 27.42
|
|
| It seems to me like somehow ASP.NET disposed the generated assemblies
| in the meantime. Please notice that this application was published by
| XCOPY over FTP, that means it is not a precompiled app or something
| like this.
|
| How can that happen? I know that I could probably resolve the problem
| with restarting IIS, but since I am not the ISP hosting this site, it
| is not in my power. Anyway, I think this is a real bug, since I cannot
| tell my ISP to just restart the IIS process every now and then. Does
| anyone has an idea what is happening here?
|
| Thanks for any help
| Urs
|
|