I have a website in IIS and if I open it in Visual Studio (running as admin) the application pool always restarts - which is a big problem on my live server. Can anyone help me prevent it from happening?
I realise precompiled web applications exist and that RDPing to live server and using VS like that is not ideal but I can't change that right now.
My project is a VB website (no MVC - just .aspx pages) and I use Roslyn and all the new language features so I can't remove DotNetCompilerPlatform (I don't think choice of language or the code has anything to do with the problem). This happens on Windows 10 and Server 2016.
From my investigation I found the following:
It seems VS does SetSecurityFile on every file in /roslyn directory which triggers a NotifyChangeDirectory message. The permissions on the files remain the same - VS updates them for no apparent reason and that rightfully causes a recompile of the website.
I've cleaned out the NuGet package DotNetCompilerPlatform. I've tried applying loose permissions on the project directory (Everyone - Full Control). I've tried VS 2017, 2019 and the new 2019 preview. Nothing helped so far. What I do know is that this didn't used to happen in the past.
Any ideas would be appreciated.
The application pool will not automatically restart unless you set the recycling time or an error occurs, So please check if there are related errors in your Event Viewer. and try to change the startMode of your application pool to AlwaysRunning:
Open Internet Information Services (IIS) Manager.
In the Connections pane, select the Application Pools node, revealing the Application Pools pane in the main view.
Click Advanced Settings…
Locate the Start Mode option under the General group and set it to AlwaysRunning.
Related
It seems like the View in Browser option doesn't really require IIS and it seems to process ASP pages fine. So how does it really work without a web server?
They used to have a developer web server (Cassini) which is dead long time back so is there some kind of built in capability in visual studio? Who processes the requests by asp pages if it doesn't require IIS?
I already have IIS installed so I am not sure if is servicing the pages but seems like it will work without IIS because I don't configure anything in IIS and new ASP.NET projects work out of the box as well View in Browser option for an asp page option which just directly executes that page.
Actually this is what occurs:
Your web web.config is copied.
Then VS spools up a WHOLE running copy of IIS (it is the express version - but it is the same for the most part as the full edition of II).
Once VS spools up and starts and configures that running copy of IIS?
Then your web page and web application can run. If you look at your system try, you see this:
So in above that 2nd from the left in the tray shows that blue thing icon. I have right clicked on it to show the options you see.
So now you have a running copy of IIS on your computer. So you ARE running a full web server here. (well, ok IIS express - but the base parts and what that means is much the same as the full edition).
Around about VS version 2010, they USED to have a smaller built in web server as part of VS. The problem of course was for Microsoft to maintain 100% compatibility was VERY hard. So while for a considerable time frame and history of VS? Yes, they had a built in web server as part of VS. But they dropped it a number of versions ago in VS, and as noted now use IIS express.
So Now? Well, when you install VS, they also install a working copy of IIS. (the express version). The express version is quite much the same as the full pop edition of IIS. What is removed is "most" if not "all" of the IIS management screens and setup. (and sometimes I wish they would just install that part too!).
Your experience thus that a copy of IIS is launched. Once launched IIS does keep running during your development process (depends on your VS config and setup). But, if you go file->close solution, then you find that IIS express then also shuts down.
So, to view that web page? Yes, VS does config, and then does spool up and start internet services and that web server. So this running of IIS on your computer is what allows those web pages to work and run correctly. As noted, while this is a copy of IIS, it is for the most part the same as the full edition - just with most of the management tools removed. As noted, you SHOULD see that new icon appear in the system tray.
And as noted, I believe around VS 2010, they made that switch from the VS built in IIS to that of now using IIS express edition. As noted, this change was made to ensure a greater probability that when coding and debugging your web site in VS, that the end result will be much the same when running a full edition.
I do find that over time, the production (web hosted site) does get so many config and tweaks and changes, that I now can't include my web.config file in the publish (can't risk overwriting the server production web.config). So, over time, we added things like https security certificates and installed them, and set them up for the production web site. I don't have those same security certificates setup on my local machine. And of course there are some virtual folders and few more things that exist on the production web site as opposed to the dev copy I use. So, it somewhat my fault to let the production web.config over time to become "different" then what I run local when coding and debugging the web site. So now, when I publish - I remove the web.config file before I actually copy the new updated web application to the final production server (which of course is running the full edition of IIS).
But to make a long story short?
Yes, a whole copy of IIS web server is configured for you, and that whole copy of IIS is spooled up, launched, and once that occurs, then your web page option "view in browser" can run. But make no mistake here - IIS services is setup, is started, and is running for that web page preview to occur.
Our company ships an MVC based product (targeting v4.5) which has stopped working on a customer site for what appear to be environmental issues - a build which worked with no problems once upon a time now gives a 403.14 - The Web server is configured to not list the contents of this directory.
.
What I think is happening...
The user accesses http://server/AppName
Because it's an MVC app, the default route (Reports/Index) should be used.
Instead IIS is looking for a default document...
... and, not finding one, it assumes the user wants to list the contents of the directory...
...which is not enabled so it throws a 403.14.
.
What I've tried so far...
Accessing the route directly.. results in 404 error. So I'm pretty
sure IIS doesn't realise it should use routing.
Use aspnet_regiis to register ASP.Net with IIS. This was done from the Framework64 folder since...
OS is 64 bit - Windows Server 2008 (Standard without Hyper-V)
IIS is 64 bit - though Enable 32-Bit Applications is true
Checked AppPool is targeting v4 of the framework - it is.
Changed AppPool mode to Classic - was pretty sure it should be integrated but was worth ruling it out. It is now back to Integrated
Confirmed RunAllManagedModulesForAllRequests is set to true in the web.config.
Checked permission conditions defined in <system.webServer> section of web.config are met - they are.
Created the simplest of MVC applications and deployed it - same problem.
Running the command shell as Administrator unregistered ASP.Net using aspnet_regiis -ua and re-registered using aspnet_regiis -enable -i. We hit a couple of permission problems - and the Temporary ASP.NET Files directory was missing but once they were address we were back to the same error.
Added a simple default.htm - when present, this is served in response to the http://server/AppName request.
I'm clean out of ideas and all google hits suggest some combination of the above - or enabling directory browsing (which I think is just a symptom rather than the root cause).
Also, not sure if it's relevant but the amount of configurable elements available for the application in IIS seems a bit below what I would have expected...
Have you Checked the user the application pool process is running under? I think Your site needs to run with permissions to execute the .net libraries and I've seen this just change for seemingly no reason (probably related to an overzealous update to the system).
You can try with the Enabling directory browsing .
assuming you are under Windows Server 2012 or Windows Server 2012 R2
On the taskbar, click Server Manager.
In Server Manager, click the Manage menu, and then click Add Roles
and Features.
In the Add Roles and Features wizard, click Next. Select the
installation type and click Next. Select the destination server and
click Next.
On the Server Roles page, expand Web Server (IIS), expand Web
Server, expand Common HTTP Features, and then select Directory
Browsing. Click Next.
On the Select features page, click Next. On the Confirm installation
selections page, click Install. On the Results page, click Close.
if you using the Windows PC try this in your command prompt as follows:
go to C:\Program Files\IIS Express
then press Enter:appcmd set config
/section:system.webServer/directoryBrowse /enabled
Maybe this is your case https://forums.iis.net/t/1157304.aspx
SQL Server Reporting Services creates a folder called Reports by
default if you install it on IIS. If you install SQL 2008 then
Reporting Services doesn't need to use IIS and instead will try to
reserve the URL with the HTTP.Sys service.
I believe this is the cause of the conflict you are seeing. What you
could try is changing the URL that Reporting Services uses via the SQL
Server Configuration Wizard.
Also I found that
Report Manager of SQL Server can use reports path http://<server name>/reports
Configure a Native Mode Report Server for Local Administration (SSRS)
I think the problem is IIS features that are not installed yet. I have met this kind of problem frequently in Windows Pro. Make sure to turn on every feature under Internet Information Service -> World Wide Services because by default IIS is configured to use WebForms. So there might be some features that not installed yet to use MVC, especially ISAPI filters. In my case, that was the solution. I hope it helps.
Something similar i encountered using VS 2017 & ASP.NET MVC.
Was working on the project for long with no problems at all but suddenly the routing started misbehaving & stopped working.
So I changed the Port in Project Properties Page & it started working.
I really don't know what is the relation between a port & MVC routing modules. Someone else can enlighten if at all this helps.
I had the same problem and I just created an application pool out of the Default Web Site in IIS and stoped the default web site. With that difference you will not have the application pool's path
I know it's been a long time since this question but i've had the same problema recently. I've tried every single configuration, just like #amcdermott did, but the only action that solve the problem was reinstalling .NET Framework.
My app was built under .NET Framework 4.5.2. The application server had the version 4.6.1 and 4.5.2 installed. So, i uninstalled all framework versions and installed the one that i needed.
Please, make sure that no other applications use superior versions of .NET Framework if you going to try this solution.
Here are some quote I find on Microsoft official site which I think may help:
For site administrators
This problem occurs because the Web site does not have the Directory Browsing feature enabled, and the default document is not configured. To resolve this problem, use one of the following methods:
Method 1: Enable the Directory Browsing feature in IIS (Recommended)
To resolve this problem, follow these steps:
Start IIS Manager. To do this, click Start, click Run, type inetmgr.exe, and then click OK.
In IIS Manager, expand server name, expand Web sites, and then click the website that you want to modify.
In the Features view, double-click Directory Browsing.
In the Actions pane, click Enable.
Method 2: Add a default document
To resolve this problem, follow these steps:
Start IIS Manager. To do this, click Start, click Run, type inetmgr.exe, and then click OK.
In IIS Manager, expand server name, expand Web sites, and then click the website that you want to modify.
In the Features view, double-click Default Document.
In the Actions pane, click Enable.
In the File Name box, type the name of the default document, and then click OK.
Method 3: Enable the Directory Browsing feature in IIS Express
Note This method is for the web developers who experience the issue when they use IIS Express.
To do this, follow these steps:
Open a command prompt, and then go to the IIS Express folder on your computer. For example, go to the following folder in a command prompt:
C:\Program Files\IIS Express
Type the following command, and then press Enter:
appcmd set config /section:directoryBrowse /enabled:true
This is my first ASP.NET project so I am a bit of a rookie when it comes to a lot of the configuring of IIS/Visual Studio so bear with me...
I am using Visual Studio 2010 running on Windows Server 2008 SR2. We recently did some updates on the server and now my project no longer loads when I attempt to debug. When I try to debug the default "Welcome" page for IIS 7 loads instead of my project. I am set up to use the development server to debug, not IIS so I don't understand why I get the IIS page. Before the updates the debugger was pulling up my page without any issues.
Any ideas? Thanks in advance!
It looks like IIS is now bound to the port number that Visual Studio Development Web Server was using previously. You can change the port number in the properties of the web site project.
I have found a solution to my issue. I decided to use IIS instead of the Development Server for debugging. After attempting to debug unsuccessfully yet again, I took a look at the identity that was being used in the application pool and I changed to one with more privileges and that seemed to do the trick. Thanks for the suggestions.
I had the same problem but non-of the earlier answers worked.
I am using Windows 7 enterprise 64-bit, IE11, VS2010, Silverlight 5
I have been developing and maintaining a number of Silverlight projects for the past 5 years, and have always been able to debug them within VS2010 using the ASP.NET Development Server. However, on returning from some well deserved holiday, I found that none of my existing Silverlight projects would run in the debugger. In each case there is a Web project set as the start-up project, and in each case on starting the project within VS2010 (with or without debugging) I got the IIS7 web page instead of my application.
I tried creating a new Silverlight web application, and found that this started normally in the ASP.NET Development Server. I checked my source code and found that no changes had been made in my absence.
After a lot of head scratching, etc., the solution was to clear the IE cache. These are the explicit steps I used:
Close all instances of IE and ASP.NET Development Server.
Open Internet Properties from the Control Panel.
Click "Delete" on the General Tab.
In the Delete Browsing History box check the following options:
a) "Preserve Favourites website data"
b) "Temporary Internet files and website data"
c) "Cookies and website data"
Leave the others unchecked
5) Click "Delete" and wait for the command to complete.
6) Close the Internet Properties box.
7) Rebuild ASP.NET project
8) Start (with or without debugging) in VS2010 - it should now load normally.
Hope this works for you.
I have searched all the usual but come up empty. I must be doing something silly!
Simply I created a new project, ASP.NET Web App, and wish to use and debug it with the local install of IIS 7.5 on my Windows 7 x64 box.
According to what I have read it should be a simple process; my issue is that Visual Studio will not stop at breakpoints nor at errors etc.
I just don't get it:
Visual Studio is attaching to the w3p process for me automatically.
If I hover over the breakpoints it shows a message saying the same, that it is in the same w3p process.
I am in Administrator context. I manually ran it like so to be sure but in any case if you are an admin it runs like that anyway.
Some notes:
I do not wish to use IIS Express as I require native IIS 7.5 for my tasks, however it does debug in express - no surprise there.
As mentioned above, all this is being done locally.
The path of the virtual directory is pointed towards the project files, as set by Visual Studio 2010. It even set the Network Service as read on the folder structure.
When debugging from VS the web site runs fine, just debugging is the issue.
Maybe it is permissions? The Default App Pool is using the ApplicationPoolIdentity not Network Service... Should it be? I had assumed they we.re one and the same essentially. Although I changed this and no luck unless I didn't do something I should of
Keep in mind here that my issue is semi-unique in that I am not receiving error messages, not even in the event logs... For all intents and purposes it should be working fine, just it isn't.
VS and IIS, and all updates, are applied to date.
Note: I'm familiar with IIS7.5, I run my own public web hosting server. I just never tried to debug
Note: It is Visual Studio 2010 Ultimate
Thanks for your time.
Sigh!
I went back to basics... Uninstalled IISExpress and tested; It worked! Re-installed IISExpress; It worked!.
I guess installing IIS7 native after IISExpress did something screwy? I had ran the register ISS command on IIS7 when I installed it.
Right, so now I have both installed in tandem and they work fine. Thanks for all your help guys, appreciated.
you can try right-click on project in VS go to properties select web from left menu tab. Check if ASP.NET debugger is checked and also you can select Use Local IIS Server and give localhost url there (in project Url textbox) and then Say start debugging from VS and put breakpoints.
I had a similar issue the other day, I attached the debugger to the wrong w3p process, make sure you attach it to the one the app pool identity is running under.
I wanted to write it as comment by I don't think I can add pictures..
Are you sure you are running the same version of dll?
Is your breakpoint filled like this?
or hollow like this?
1st go to ,Program and Feature in control panel and then in that turn on or off windows features. and now check all check boxes(activate features) related to Internet Information server & windows service managers. once this is done run your visual studio as administrator and then attach to right w3p process.
Why are the code-behind pages for an ASP.NET web application locked at run time? I have older projects (probably defined as "web sites" instead of "web apps") where I can edit the code behind, refresh the browser, and see my changes. With the web app, I have to continually close and reopen the browser if I want to see my changes live. Is there a setting or something I'm missing to allow me to edit at run time, and without restarting the debugging session?
You can enable Edit and Continue in the project properties. Right click the project in the solution explorer, select the Web tab and check Enable Edit and Continue.
Now you can edit your sources, but you have to pause the debugger to do so.
When using IIS as your development server, Edit and continue is not currently available for Visual Studio for ASP.NET.
See this blog entry, however, that shows it is possible for the Visual Studio 2005 Web Application Project Project type. It requires using the Visual Studio Development Server (Cassini) during development instead of your local IIS (see the properties box on the project).
No, in web applications, the codebehinds are pre-compiled into dlls, so any change in the dlls will recycle the App pool, and stop your debugging session,
If you press ctrl-F5 instead of just F5 to start (or host you site in IIS), you start without the debugger, and don't need to restart the browser all the time...
Unless you really really need to debug a problem you can't figure out, You should start the web app without debugger, makes it snappier to start up. Every minute spent debugging is a minute not spent writing a unit test. IMHO you should write unit tests, they last longer.