ASP.NET HTTP error 500.19 "cannot read config file"

Question

I have a really frustrating problem. I have a website in ASP.NET. I use IIS Express for development. I recently moved my project files and folders from a usb drive to my dropbox folder to avoid carrying the drive around.

After moving my project to the dropbox folder, I got this error that IIS cannot read my config file. I noticed the path was pointing to my usb drive. So I copied my web.config to the path displayed in the error message and it worked again, if I delete it again, the error comes again.

So I think that somewhere in my project there is a config setting that points to my usb drive, although it should point to my local dropbox folder.

I have attached a screenshot of the error:

enter image description here

Translation:

Module IIS Web Core Message Unknown Handler still undetermined Error code 0x80070003 Config error The config file cannot be read Config file ......... Requested URL ........... Physical path Authentication method still unknown Authenticated user still unknown Debug path ..................

I did but so far I have had no success. I also dont really know what to look for, I searched web.config, path, location, etc. but it turned out no helpful results — LeonidasFett
– LeonidasFett, Commented Jul 4, 2013 at 13:53

Davronbek Rahmonov · Accepted Answer · 2019-07-26 21:39:27Z

4

Uhh, I have looked for the answer for more than 2 hours. I tried cleaning up every bin, .vs folders. But those did not help me.

Eventually, I fixed the issue by re-showing (re-binding) the path to the project in IIS Manager

answered Jul 26, 2019 at 21:39

Davronbek Rahmonov

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ProgrammingLlama · Accepted Answer · 2017-08-03 02:03:23Z

2

I had this problem when trying to launch a service from a project created on another machine that was saved in DropBox.

In the project folder there is a file in PROJECTFOLDERNAME/.vs/config/applicationhost.config

In that file is a list of sites in XML like so:

<sites>
    <site name="WebSite2" id="2">
        <application path="/" applicationPool="Clr4IntegratedAppPool">
            <virtualDirectory path="/" physicalPath="C:\Users\WRONGPATH\Dropbox\Website2\src\Website2" />
        </application>
        <bindings>
            <binding protocol="http" bindingInformation="*:64655:localhost" />
        </bindings>
    </site>
    <site name="WebSite4" id="3">
        <application path="/" applicationPool="Clr4IntegratedAppPool">
            <virtualDirectory path="/" physicalPath="C:\Users\Nick\Dropbox\Website3\src\Website3" />
        </application>
        <bindings>
            <binding protocol="http" bindingInformation="*:64655:localhost" />
        </bindings>
    </site>
    <siteDefaults>
        <logFile logFormat="W3C" directory="%IIS_USER_HOME%\Logs" />
        <traceFailedRequestsLogging directory="%IIS_USER_HOME%\TraceLogFiles" enabled="true" maxLogFileSizeKB="1024" />
    </siteDefaults>
    <applicationDefaults applicationPool="Clr4IntegratedAppPool" />
    <virtualDirectoryDefaults allowSubDirConfig="true" />
</sites>

Change the virtualDirectory physicalPath to the correct path. The problem I still face is I work on this project from two different locations, I don't really want to change this back and forth all the time.

edited Aug 3, 2017 at 2:03

ProgrammingLlama

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answered Jan 26, 2017 at 5:46

nick

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1 Comment

Francis Over a year ago

I was researching for an solution to a similar problem in ASP.NET MVC Core and came across your answer. Looks like the same issue persists in ASP.NET MVC Core. Thanks for the solution.

Anwar Chandra · Accepted Answer · 2015-02-26 16:44:03Z

1

I had this issue when I moved my "My Documents" folder to another location. IIS Express was still pointing to old path. The only way I could fix this is by doing clean installation of IIS Express.

Uninstall IIS Express
Remove the 'IIS Express' folder that contains configuration file.
Install IIS Express

answered Feb 26, 2015 at 16:44

Anwar Chandra

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Comments

Thierry Brémard · Accepted Answer · 2023-06-09 12:36:26Z

solved my issue by updating virtual directory/advanced settings/LongonType = Batch (instead of network)

<virtualDirectory 
    path="/extractions" 
    physicalPath="\\data.myspector.com\data\ExecResults" 
    userName="MySpector.com\Admin" 
    password="[enc:IISCngProvider:2Wewwm4zL0+BeTbjR1dE/FM0i6g4GpoGt0IBHBfknBdklddXYYYBNbb3uDn0c6abzW8ZV1xGFu8TegyDNgmds7egqd54A==:enc]" 
    logonMethod="Batch"  <<<<<<<<<<<<<<<<<<<
    allowSubDirConfig="false" />

Also be aware in context of Apache to IIS migration on the side of the slashes in network folder: Apache uses / when physical path on IIS must be with '\'.
Also if you are internal to a company checkout the domain name and add a binding if not yet done (but this is not exactly for this precise error, but for a 404).
Last point to help you to trouble shoot : click on browse button inside IIS manager of server machine itself as web page will show you more detailed info that are hidden for security if you test from another machine.

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