strange error when deploying new code-behind assemblies

I have an asp.net application that is running and I updated code behind
assemblies after I modified some internal logic.

Then I tried to view the page and got a very strange error, something like
the following:

Could not find file "C:\WINDOWS\TEMP\qoqdmvbc.dll".

I get errors like that in different places where I've updated assemblies.
They are all named with random alpha letters + .dll.
I'm assuming I am getting caught between the page compilation somehow
because I get the correct pages after a bit.

Can someone clarify on what is really happening?
Thanks
JihoJiho Han wrote:

> I have an asp.net application that is running and I updated code behind
> assemblies after I modified some internal logic.
> Then I tried to view the page and got a very strange error, something like
> the following:
> Could not find file "C:\WINDOWS\TEMP\qoqdmvbc.dll".
> I get errors like that in different places where I've updated assemblies.
> They are all named with random alpha letters + .dll.
> I'm assuming I am getting caught between the page compilation somehow
> because I get the correct pages after a bit.
> Can someone clarify on what is really happening?
> Thanks
> Jiho

these are asp.net compiled code files, they are in directory

C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\Tempo rary ASP.NET
Files\<yourvirtualdirectory> , or whatever version you are using ..

i get these errors sometimes, when file locking gets asp.net confused, I
just go there and delete the <yourvirtualdirectory> directory.., that
solves the problem,

hth
-ashish