I have VS2008 and VS2010 installed on my machine. Both works fine when there is only one IDE is running i.e. Vs2010 works fine when there is no Vs2008 instance opened and vice versa.
When I run application from VS2008/2010 in debug mode I get below error message
Unable to connect to Asp.net development server.
Even doing iisreset doesn't solve this, I need to restart my machine and then work on only one IDE at a time. My development machine has win7 & IIS7.
The IDEs are probably trying to use the same port. Check the icons of the Development servers in the notification area to see what port each of them is using. This gives details about how to change it.
Related
I am setting up my new workstation (Windows 10 Pro) with my ASP.NET projects with Visual Studio 2017. I have enabled local IIS and the project throws a timeout error while trying to debug the project.
It is not failing 100% of the time though, mostly fails but when it runs it is taking longer than expected to give the startup page. The error thrown is
Unable to start debugging on the web server. The operation has timed out
I did notice that the IIS worker process (w3wp.exe) was only executed in the completed console output. So it looks like the IIS worker process is not always being executed.
Any help would be appreciated!
Thank you!
The project runs successfully on an old workstation (Windows 10 Edu) with Visual Studio 2017. App pool settings has been compared between both and it seems same. IIS reset is tried as well. Visual studio has been repaired and IIS local has been restarted as well (unchecking and enabling followed by restarting the machine). Default app pool is used and its been recycled as well. Nothing worked!
Possibly the Visual Studio project version does not match the ASP.NET configured application pool. Update the ASP.NET version in the application pool and restart it.
Make sure you have the correct version of ASP.NET installed on IIS. A version mismatch between ASP.NET in IIS and the Visual Studio project can cause this issue. May need to set the framework version in web.config. To install ASP.NET on IIS, use the Web Platform Installer (WebPI).
If the issue is not related to IIS configuration, try the following steps:
Restart Visual Studio with administrator privileges and try again.
For example, using the Web to deploy some ASP.NET debugging scenarios that require elevated Visual Studio privileges.
If you are running multiple instances of Visual Studio, reopen your project in one instance of Visual Studio (with administrator privileges) and try again.
If using a HOSTS file with a local address, try using the loopback address instead of the computer's IP address.
If not using a local address, make sure the HOSTS file contains the same project URL as in the project properties, Properties > Web > Server or Properties > Debug, depending on the project type.
Reference link:
Visual Studio "Unable to start debugging on the web server. The web server did not respond in a timely manner.".
I have web app running locally in IIS. App of Net Framework 4.7.2. When I tried "Attach to Process" for w3wp process in Visual studio I am unable to do so. Visual Studio is running under Administrator account. Things I tried:
Restart of IIS and VS in different sequence.
Setting "Enable 32-bit Applications" flag on app pool in IIS to true
Tried to run process monitor to see if there would be errors. Nope, no errors.
Tried manually set type of app in "Attach to" combobox to various types with same results. Types tried: Managed 4.x, with and without Compatibility mode, Managed(Native compilation), Native.
Tried Visual Studio repair - still having issue.
Created brand new web app .Net Framework 4.7.2, deployed it under IIS and tried to attach to the w3wp process and got same issue.
Things I noticed:
When I tried to attached to 64 version of the w3wp the type is "Managed Net 4, x64" and I am getting "Unable connect to the process" message with justification: VS must run as administrator. Funny thing: VS IS running as administrator.
When I turn 32-bit application flag on I am getting type as x86 and plain "Access denied". Even if restart IIS and try to access the app to start new w3wp process. I think it should be: "Managed Net 4, x86", but I am not 100% sure.
At this point I am out of ideas. Any help would greatly appreciated
UPDATE.
I noticed, when I turn on 32bit applications on app pool in IIS I am getting following error in Event Viewer:
"The description for Event ID 0 from source .NET Runtime cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer."
Turned out corrupted Avecto installation was the culprit. Reinstalling offending software resolved the issue. Live and learn. At least I lived.:)
When I just installed a Visual Studio 2017 and created my Xamarin.Forms application, it ran fine on my Windows 10 PC. However, I then installed some apps from Steam (which is the only thing I can think of that could change system settings). After that, when I try to create another Xamarin.Forms project, it does not deploy well to my machine and gives the following error:
DEP6200: Bootstrapping failed. Device cannot be found.
SmartDeviceException - Deployment failed because no
device was detected. Make sure a device is connected
and powered on. [0x80131500]
Strangely enough, my first app continues to build and run fine, even if I uninstall it from Windows and then deploy it again.
What could be the issue?
I have just noticed that Visual Studio makes ARM the default architecture. Changing it to "Any CPU" brought back the option to run the app on my machine.
My task is simple: I need to test my ASP.NET web application in a 64-bit environment on my development machine. (At this point I don't even ask about running it through a debugger. All I need is to run it in a 64-bit process.)
So I created a stock C# Web Application in Visual Studio 2010 and adjusted its properties as such:
I then did Ctrl+F5 (or run without debugging) and IE loaded up and hangs up like so:
What am I doing wrong here?
PS. Running it on Windows 7 Ultimate (64-bit).
We had the same problem and when the team jumped to Visual Studio 2012, this registry key was really useful to us :
you can add a registry key to force visual studio to use the 64 bits version of iisexpress.exe ; unfortunately for you, it is a VS2012-only solution.
reg add HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\11.0\WebProjects
/v Use64BitIISExpress /t REG_DWORD /d 1
Then restart Visual Studio and tick [X] Use IIS Express in your settings.
(see also the source).
UPDATE: For reference, in Visual 2013, this option can be found in the interface : Options/Projects and Solutions/Web Projects/Use the 64 bit version of IIS Express for web sites and projects
In IIS make sure the Application Pool, Advance Settings, Enable 32-Bit Applications = false
If this setting is true then the worker process will run as 32bit WOW64 process.
Chris
No settings required in project or solution level. I am developing WebApp on VS2010 on 32 bit and 64-bit machines simultaneously. Actually We are working on SVN and our few machines have Win7 32-bit and my few mates have Win7-64bit laptops. But there we haven't faced any such issue while compiling the app on two different machines and Even on the live server, it runs butter smooth. Hardly care about the bit and bytes.
To verify a test run. Publish your code and host in your local IIS or Cassini Webserver and access it over LAN.
Also if possible revert back solution and project settings to its original configuration settings. Generally, We do not need to change target until and unless it is strictly required. As, AFAIK, It compiles the assembly under "Any CPU" as target, which is eligible for all i.e. IA, X64 and X86..
Finally, if you are coming across any error, please do post it here. It will help you and us as well.
First of all how to do you know if your IIS process is running your website as 32-bit or 64-bit as of now?
Open Task manager to check the bitness of w3wp.exe. If your machine is 64-bit then IIS will run 64-bit by default. Your problem seems to be something else. If bitness is the issue then you won't even come this far. Check IIS logs (c:\inetpub\logs{website-ID}{date})... that might give you some pointers. If there is nothing in there, check event viewer. If nothing then check if the virtual directory is actually created in IIS Manager under Default Web Site.
Have you actually tested if IIS (sans ASPX) is functional? http:// localhost ? does that work? if that is working then I would recommend checking if your ASP.NET modules are properly installed within IIS.
Hope this Helps.
I am running visual studio 2008 on vista business 64-bit. I am getting the following exception when I try to debug against IIS.
"Unable to start debugging on the web server. The object identifier does not represent a valid object".
IIS and Visual Studio are on the same box.
I've tried adding Windows Authentication but no luck (my app requires forms authentication, fyi).
Any thoughts? I have a binding on the Web Site. The IIS app is a Web SIte not a virtual directly.
Thanks!
You have switch on Windows Authentication in IIS
Is your pc and the webserver on the same Windows domain? If not, or there is a DMZ between your pc and the web server you could experience problems unless you've explicitly setup trust between the machines.
Go to IIS right click on your project go to Asp.Net tab change the version to your current verion you are using.
This problem comes when you are using a higher version and decided to switch to a lower version and vice versa changing to your version might solve the problem