asp.net invalid file name for monitoiring

[simpsoro]

I am trying to run asp.net pages. The server is accessed by students
via http://sitename/username

I have verified it is using port 80 and aspx extensions
are configured. But when I run and asp.net page I get the
following error:

Invalid file name for monitoring: 'E:\'. File names for
monitoring must have absolute paths, and no wildcards.
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.Web.Http Exception: Invalid file
name for monitoring: 'E:\'. File names for monitoring must
have absolute paths, and no wildcards.

Source Error:

An unhandled exception was generated during the execution
of the current web request. Information regarding the
origin and location of the exception can be identified
using the exception stack trace below.

Stack Trace:
[HttpException (0x80070057): Invalid file name for
monitoring: 'E:\'. File names for monitoring must have
absolute paths, and no wildcards.]
System.Web.File ChangesMonitor. StartMonitoring Path
(String alias, FileChangeEvent Handler callback) +611
System.Web.Cach ing.CacheDepend ency.Init(Boole an
isPublic, Boolean isSensitive, String[] filenamesArg,
String[] cachekeysArg, CacheDependency dependency,
DateTime utcStart) +1535
System.Web.Cach ing.CacheDepend ency..ctor(Bool ean
isSensitive, String[] filenames, DateTime utcStart) +50

System.Web.Conf iguration.HttpC onfigurationSys tem.GetCacheDe
pendencies(Hash table cachedeps, DateTime utcStart) +151

System.Web.Conf iguration.HttpC onfigurationSys tem.ComposeCon
fig(String reqPath, IHttpMapPath configmap) +697
System.Web.Http Context.GetComp leteConfigRecor d(String
reqpath, IHttpMapPath configmap) +434
System.Web.Http Context.GetComp leteConfig() +48
System.Web.Http Context.GetConf ig(String name) +195
System.Web.Cust omErrors.GetSet tings(HttpConte xt
context, Boolean canThrow) +20
System.Web.Http Response.Report RuntimeError(Ex ception e,
Boolean canThrow) +40
System.Web.Http Runtime.FinishR equest(HttpWork erRequest
wr, HttpContext context, Exception e) +480


-----------------------------------------------------------
---------------------
Version Information: Microsoft .NET Framework
Version:1.1.432 2.2032; ASP.NET Version:1.1.432 2.2032
..