I am getting HTTP Error 502.5 - Process Failure error while running the application. When I execute dotnet C:\app.dll on command line, it gives me below message
I installed windows hosting package 1.0.4-1.1.1 and 1.0.5-1.1.2 but no luck. It is still complaining the same.
Can anyone please help me out. I already spent my whole day trying to fix this issue.
Have you installed correct .net core version? Basically issue above that the server unable to detect that .net core has been installed on the server. Check your web.config file again, maybe this post http://dotnet4europeanhosting.hostforlife.eu/post/European-ASPNET-Core-Hosting-HostForLIFEeu-How-to-Fix-Error-5025-Process-Failure-in-ASPNET-Core.aspx can help you.
I am creating an ASP .Net Core (2.0) MVC application within Visual Studio 2017 which was working absolutely fine.
After turning off my computer yesterday and coming back to my application today, I now receive this browser error when I start the application in chrome without debugging.
Running dotnet run within the directory of the application, I can access the site just fine. It is just when I run it via Visual Studio/IIS Express I get this error.
HTTP Error 502.5 - Process Failure
The application builds and compiles just fine. I have also cleaned the solution.
Looking in the event logs I find:
Application 'MACHINE/WEBROOT/APPHOST/MYAPP' with
physical root 'C:\Users\Ben Hawkins\Desktop\Development Folder
\Dev\Website\Version_2\MYAPP\MYAPP\'
failed to start process with commandline 'C:\Program Files
(x86)\Microsoft Visual
Studio\2017\Community\Common7\IDE\Extensions\Microsoft\Web
Tools\ProjectSystem\VSIISExeLauncher.exe -argFile "C:\Users\Ben
Hawkins\AppData\Local\Temp\tmp3547.tmp"', ErrorCode = '0x80004005 :
0.
Within my output window in Visual Studio 2017 I recieve this message under
ASP NET CORE WebServer
Failed to initialize CoreCLR, HRESULT: 0x80131534
What I have tried:
Cleaning the solution, rebuilding etc
Restarting the computer
Trying to launch another application. (Same result)
Created a new application from scratch. Same result.
Repairing Visual Studio Community 2017. Same result.
Stopping/Closing IIS Express
My setup was working perfectly yesterday and suddenly is not.
Thank you for your time. I hope we can find a solution.
We finally found the issue! After logging on to the machine as a different user, we saw a warning that the main user had ignored initially. There was a 0 byte file in the root of the directory named "Program" with no file extension. It appears that this causes some sort of issue when VSIISExeLauncher.exe is invoked through Visual Studio. (Note it would work if executed from the command prompt). After deleting the file, everything worked!
We do not know how this file was placed there for certain, but suspect it was some sort of copy error when the user was pulling in files from his old hard drive.
I don't know if anyone else will come across this, but if so hopefully this helps!
Maybe you need install previous versions of .NET Core, isn't it? I installed here and it works now. I had only .NET Core 2.0 installed and I realized that applications with 1.1 stopped so when running. In Windows' event logs I've had the same error registered.
Try to change the IISExpress to IIS by creating new IIS profile and change the Lunch to IIS. It resolved my problem.
I have hit a very similar issue with ASP.net Core 2.0. I had copied my VS project to a new one, and I was getting this error message.
After doing some research, I was able to determine that the nlog.config file was not copied into the bin > Debug > net461 folder. Once I did this, I was able to run my application.
I found it by running dotnet run from the command line on my project where the csproj files live.
Had same issue yesterday (windows 10).
Solved it this way:
Update Microsoft.AspNetCore to latest (Nuget manager - 2.1.3)
Make sure the sdk also updated to latest version. if not, update it manually from Nuget console like this:
Install-Package Microsoft.NETCore.App -Version 2.1.3
Download and install latest ASP.NET Core/.NET Core: Runtime & Hosting Bundle
from here
Same problem with version 2.2. Reinstalling .NET Core SDK fixed the problem for us.
In my case, my project was setup as a website in IIS and the file "bin\IISSupport\VSIISExeLauncher.exe" was missing in the project's directory.
I simply selected "IIS" when debugging the project in Visual Studio 2019 and it generated the missing file. It also generated 2 text files (IISExeLauncherArgs.txt, pidfile.txt) in the IISSupport folder, made changes to my web.config file, and my project ran successfully.
After that I was able to access the local website that was setup in IIS without running it in Visual Studio.
Created a asp.net 5 project with another team member and works on everyone's computer but mine. I get "Failed to load resource: the server responded with a status of 500 (Internal Server Error and the web page is blank.
I thought maybe I was missing a .net version but when downloading .NET Framework 4.6 it says ".NET Framework 4.6 or a later update is already installed on this computer."
If someone could point me in the right direction it would be a lot of help! Thanks!
The error code is very general in that some error happened in your code that stopped the execution of the webpage.
If you are running the webpage in debug mode from Visual Studio on your computer, VS should have stopped on the line of code containing the error.
If, for some reason, Visual Studio does not stop on the error, you can also look in Windows Logs -> Application. It should appear as an Asp.Net Warning with details regarding the error.
See Log #3:
http://blog.leansentry.com/the-server-logs-you-need-to-know-to-fix-any-iis-aspnet-error/
I figured out my problem! I had a dependency issue in my project.json file.
"Oracle.ManagedDataAccess": "12.1.2400"
"FluentNHibernate": "2.0.3"
"NHibernate.Caches.SysCache": "4.0.0.4000"
These packages didn't support dnx 5.0 so they couldn't be in the default dependencies section. They needed to go under dnx451 -> dependencies.
I have an ASP.Net site running on 4.5.2, using the report viewer control. All of a sudden on our server, we are getting
An unexpected error occurred while compiling expressions. Native
compiler return value: ‘255’.
This is occurring for all of our reports (Most of which haven't been modified in over a year). I am trying to identify what potentially changed and is causing this and am coming up short.
We are on Windows Server 2012.
I have found some articles pointing to an issue that occurs with some security patches. We had 4.6 installed on the server so I updated to 4.6.1 and still same issue occurs
So turns out that if you had installed some security patches then installed .net 4.6, it breaks the VB compiler.
I had to remove those two patches as indicated here.
I been beating my head against the wall trying to get this to work. I have a project I did a while ago that used JWT to authenticate users. When I copied the template code from one project to the other, It claimed to be missing a package or libary. I check nuget and apparently I have installed the latest version of the frameworks I need.
Any suggestions for what i am doing wrong?
Check if the assembly is showing any warnings under Project -> References. I've sometimes found that one has a warning. Most commonly this is because there is a mismatch in the .Net version.
I've had a package add a .net 4.5.2 assembly into a project targeting .net 4.5 which exhibited similar behavior.