Question

I just installed IIS on Windows XP.

When I try to execute an app, I get an error:

Access to the path ‘c:\inetpub\wwwroot\myapp\App_Data’ is denied.
Description: An unhandled exception occurred during the execution of
the current web request. Please review the stack trace for more
information about the error and where it originated in the code.

Exception Details: System.UnauthorizedAccessException: Access to the
path ‘c:\inetpub\wwwroot\myapp\App_Data’ is denied.

ASP.NET is not authorized to access the requested resource. Consider
granting access rights to the resource to the ASP.NET request
identity. ASP.NET has a base process identity (typically
{MACHINE}\ASPNET on IIS 5 or Network Service on IIS 6) that is used if
the application is not impersonating. If the application is
impersonating via , the identity will be
the anonymous user (typically IUSR_MACHINENAME) or the authenticated
request user.

To grant ASP.NET access to a file, right-click the file in Explorer,
choose “Properties” and select the Security tab. Click “Add” to add
the appropriate user or group. Highlight the ASP.NET account, and
check the boxes for the desired access.

Source Error:

Line 70: Protected Sub cmbSettingFiles_SelectedIndexChanged(ByVal
sender As Object, ByVal e As System.EventArgs) Handles
cmbSettingFiles.SelectedIndexChanged
Line 71: Dim doc As XmlDocument = New XmlDocument()
Line 72: doc.Load(Path.Combine(basePath, cmbSettingFiles.SelectedValue))
Line 74: Dim settingsNode As XmlNode = doc.SelectSingleNode(“/settings”)

Source File: C:\myapp\install\install.aspx.vb Line: 72

I have tried grating permission by doing this:

To grant ASP.NET access to a file, right-click the file in Explorer,
choose “Properties” and select the Security tab. Click “Add” to add
the appropriate user or group. Highlight the ASP.NET account, and
check the boxes for the desired access.

But the error persists.

Does this have anything to do with my code?

How can I resolve this?

EDIT

I have solved the problem on my dev machine, but I am still getting the error on my web server.

Thanks.

Answer 1

Try to go to App_Data folder property and add ASPNET user with read
and write privileges

Ref:
How to assign correct permissions to App_Data folder of WebMail Pro ASP.NET
Permissions on APP_DATA Folder
ASP/ASP.NET Best way to handle write permissions?

If it does not solve your problem then check whether your XML files are not open by another thread using these configuration files.. and provide some more details if still persists.