How to fix ASP.NET error "The file 'nnn.aspx' has not been pre-compiled, and cannot be requested."?

user_37268 0
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I have a VS 2005 web site that I publish using "Publish Web Site", and I clear all the three checkboxes. I also have a deployment project that picks up the published files and creates an MSI. I then install the package on a separate test server.

In other words, the whole site is pre-compiled. However, when I go to any .aspx file in a specific subfolder named "Services", I get an HttpException:

System.Web.HttpException: The file '/myapp/Services/mypage.aspx' has not been pre-compiled, and cannot be requested.

If I go to an .aspx file in an other folder, be it the root or other subfolder, it works properly.

The contents of mypage.aspx itself is: <%@ Page Language="C#" AutoEventWireup="true" CodeFile="mypage.aspx.cs" Inherits="Services_mypage" %>"

In the /myapp/bin folder I can see a mypage.aspx.989dc2fb.compiled file. The content of this seems to point to a certain assembly that is also present in the bin folder.

Why is this error occurring? The .compiled file is there, and the assembly is there, and the type in question is present in that assembly (I can see it in Object Browser). Is it something about the name or the content of the .compiled file? Do I have the wrong version somehow? What does the seemingly random number in the .compiled filename mean and is it important?

I also want to mention that this issue appeared suddenly, and I'm not sure what changes there can have been done since it worked properly a few days ago (but to the best of my knowledge, none).

deployment webforms asp.net
26 Answers

I've not had that error, but after a little Googling I came across this link, I'm not sure if you've seen it yet: http://forums.asp.net/t/956297.aspx

Edit (adding the key text):

This error will come when a reference is specified in web.config and deployment folder/site does not contain these dlls installed in the system or bin folder does not contain them(if they are private assemblies). For Example: (add assembly="Namespace1.NameSpace2, Version=x.x.x.x, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/) if your web.config contains any assemblies like this and deployed server doesnot contain these assembiles in bin or GAC, then this error will occur.

People were reporting that missing assemblies on the destination server ended up being the root cause, in their cases, but they had the same error as you. Weird.

Maybe that's the problem?

Carl_383750

It turned out to be a missing (non-web) DLL in the MSI, which I assume was used by the pages giving the error. A quite misleading error message I'd say, as the page was certainly precompiled, but had a missing reference to that DLL.

user_372680

For me, I had a script that deletes the production folder and then copies up the new files.

The script failed to delete the production folder properly leaving that the old and new files were mixed in together causing the error.

I manually deleted the entire folder and redeployed successfully...then updated the script.

user_27073310

This problem can be caused by many different reasons. Mine was sporadic on pages that woked for a while and suddenly gave the error mentioned. It was a memory pressure related problem
this thread had the correct answer for me and i've also posted my workaround there.

user_54276480

Redeployment of the same files also fixed this issue in my case.

So maybe before trying anything else first try to deploy you app again (bin folder content should be enough)

BTW: In my case the error started when C drive run out of space.

Happy coding! ChiTec

user_3242030

Under the website root folder, there is one file named PrecompiledApp.config, after updating the updatable="true", the site is working again.

user_7601390

This is the solution for VS 2008.

Please tick the box as shown below to resolve the issue.

enter image description here

user_59523240
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