I have installed dnn on windows server 2008 (not R2).
Everything seem to be working ok with my DNN install but when I came to enter my store credentials I received the following error
Critical Error: Object reference not set to an instance of an object.
Going into Admin > Event viewer I see a few entries with the following
ActiveTabID:36
ActiveTabName:Extensions
RawURL:/Host/Extensions/ctl/Store/mid/345/portalid/0?popUp=true
AbsoluteURL:/Default.aspx
AbsoluteURLReferrer:http://109.123.110.124/Host/Extensions/ctl/Store/mid/345/portalid/0?popUp=true
UserAgent:Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36
DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke
ExceptionGUID:ca46a6b6-bc7d-4b24-b6f8-e30cb0768d73
InnerException:Object reference not set to an instance of an object.
FileName:
FileLineNumber:0
FileColumnNumber:0
Method:DotNetNuke.Modules.Admin.Extensions.Store.OnSaveClick
StackTrace:
Message:
DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at DotNetNuke.Modules.Admin.Extensions.Store.OnSaveClick(Object sender, EventArgs e)
at System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e)
at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument)
at System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
--- End of inner exception stack trace ---
How do I fix this?
I had a very similar problem while installing the forums module. I was not able to get an answer on how to fix it. I ended up installing an older version of it and it worked fine.
Also, Make sure that all the permissions for files and folders for the site are set to read and write.. I had a few problems with files and folders that were not set to read and write and it kept on throwing error messages.... If you get really stuck I would recommended using the forum listed below.
http://www.dnnsoftware.com/forums
Related
I created a basic coding in visualbasic to download from NSE website.
While the coding still downloads the previous years data, it gives an download error for the current new year.
The RAW URL is https://www.nseindia.com/products/content/equities/equities/archieve_eq.htm If you choose a date (say today) and then select BHAVCOPY report, the site will provide you with a link to download the csv.zip file.
However, if you click on the link directly (https://www.nseindia.com/content/historical/EQUITIES/2017/JAN/cm02JAN2017bhav.csv.zip), the URL returns an error: Access Denied
You don't have permission to access "THE LINK" on this server.
Reference #18.11367a5c.1483362327.35d38c1b
What might be the problem with change in year?
i also facing same issue. fixed by adding 2 http header property.
"User-Agent" : "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.95 Safari/537.11"
"Referer" : "https://www1.nseindia.com/products/content/equities/equities/archieve_eq.htm"
After a bit tweaking I noticed it was something to do with browser. Blocked the cookies and everything is working fine.
I am relatively new to vb.net, so please bear with me. . .
I created a web app using Visual Studio Professional 2012. When I was coding/testing on my box, everything worked well. Now that I have deployed the project to our server, I am having a problem. While in my application, the user clicks a hyperlink (filename) and I use System.Diagnostics.Process.Start(PDFFile) to open my documents. Before deployment, it would open pdf/doc/xls documents, but after deployment, I receive the following error message:
The system cannot find the drive specified
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.ComponentModel.Win32Exception: The system cannot find the drive specified
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:
[Win32Exception (0x80004005): The system cannot find the drive specified]
System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo) +1075
System.Diagnostics.Process.Start(ProcessStartInfo startInfo) +60
CEI_PerformanceReviews.ScannedReviewReader.Page_Load(Object sender, EventArgs e) +301
System.Web.UI.Control.LoadRecursive() +71
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3178
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.17929
I've tried to rename some of the filenames to see if it didn't like the Network Mapping. That got rid of the error message. I don't really understand the above stack trace - was it telling me that it didn't like the mapping?
After changing the filename, the error seems to have gone away, but now nothing happens. It doesn't appear to be trying to open the document I click on. I've checked on the server that I have deployed to, and it doesn't have Microsoft office installed. Could that be the problem? Again, I'm new to this, so please excuse my lack of understanding.
If anyone could please help me resolve this problem, I would appreciate the help.
Thank you!
Wendy
The stack trace was telling you that it did not understand the path you were providing to the StartWithShellExecute method.
Yes, the issue is most likely that you do not have any software on the server that can handle the PDF/DOC/XLS MIME types.
We're getting errors every so often with a WCF service (consumed by Silverlight) that don't give us much to go on:
The service '/ourservice.svc' cannot be activated due to an exception during compilation.
The exception message is: Object reference not set to an instance of an object.. --->
System.NullReferenceException: Object reference not set to an instance of an object.
at System.Web.Compilation.DiskBuildResultCache.CacheBuildResult(String cacheKey, BuildResult result, Int64 hashCode, DateTime utcStart)
at System.Web.Compilation.BuildManager.CacheBuildResultInternal(String cacheKey, BuildResult result, Int64 hashCode, DateTime utcStart)
at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath)
at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
The service compiles/runs fine whenever I use it via the browser or using the silverlight client. The Silverlight side of the system reports this also equally un-helpful error:
System.ServiceModel.CommunicationException:
[HttpWebRequest_WebException_RemoteServer]Arguments: NotFound
The only lead I've managed to find is possibly changing the instancing behaviour but I'm not sure why we would need to do that, and I can't tell what the default is anyway.
It's hosted on Windows 2008 SP1
The server is behind a load balancer
The timeouts in the web.config for the service are 5 minutes
The maximum object size is 50000000
The services have AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)
Any suggestions would be great
Update
This is another symptom - the Silverlight client frequently sends this exception to our logging service (which writes to the event log + emails)
There was an error saving the report - The error object contained errors
System.ServiceModel.CommunicationException: [HttpWebRequest_WebException_RemoteServer]
Arguments: NotFound
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=4.0.60129.0&File=System.Windows.dll&Key=HttpWebRequest_WebException_RemoteServer ---> System.Net.WebException: [HttpWebRequest_WebException_RemoteServer]
Arguments: NotFound
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=4.0.60129.0&File=System.Windows.dll&Key=HttpWebRequest_WebException_RemoteServer ---> System.Net.WebException: [HttpWebRequest_WebException_RemoteServer]
Arguments: NotFound
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=4.0.60129.0&File=System.Windows.dll&Key=HttpWebRequest_WebException_RemoteServer
at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
at System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClass5.<EndGetResponse>b__4(Object sendState)
at System.Net.Browser.AsyncHelper.<>c__DisplayClass4.<BeginOnUI>b__1(Object sendState)
--- End of inner exception stack trace ---
at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result)
--- End of inner exception stack trace ---
at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
at System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result)
at MyNamespaceSilverlight.Core.ReportServiceReference.ReportServiceClient.ReportServiceClientChannel.EndUpdateReport(IAsyncResult result)
at MyNamespaceSilverlight.Core.ReportServiceReference.ReportServiceClient.MyNamespaceSilverlight.Core.ReportServiceReference.IReportService.EndUpdateReport(IAsyncResult result)
at MyNamespaceSilverlight.Core.ReportServiceReference.ReportServiceClient.OnEndUpdateReport(IAsyncResult result)
at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)
Is anything in the service modifying the contents of the \bin directory? When hosting under ASP.NET, the ASP.NET runtime will monitor the \bin directory for any changes and, when a change is seen, it will attempt to reinitialize the application so that it picks up whatever changes there might have been.
You should not have anything writing to the \bin directory as part of your service's normal operation. Usually this is a problem with log files being configured to write to the \bin directory rather than a specific directory of their own. If you are unable to write the log files someplace outside the root of your application directory for whatever reason, just write them into a \logs sub-directory and configure ASP.NET to block all access to that directory like so:
<location path="logs">
<system.web>
<authorization>
<deny users="*" />
</authorization>
</system.web>
</location>
A similar problem is reported here: Service activation problem that seems to be related to log files.
Looks like a bug in System.Web. Same issue is reported here: http://connect.microsoft.com/VisualStudio/feedback/details/550511/nullreferenceexception-during-service-compilation.
The jury is still out, but I think you have better chances of getting this issue resolved if you post your details on http://connect.microsoft.com.
We've received the similar error during testing of WCF services, when one of the developers started a deployment of a new version of the service.
I'm POSTing data to a server and successfully execute BeginGetRequestStream, then EndGetRequestStream, write my POST data to the fill the RequestStream, and call BeginGetResponse.
BeginGetResponse successfully returns and I then call:
Dim response As HttpWebResponse = CType(MyHttpRequest.EndGetResponse(asynchronousResult), HttpWebResponse)
This line throws the folloing SecurityException Error:
{System.Security.SecurityException ---> System.Security.SecurityException: Security error.
at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
at System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClass5.b__4(Object sendState)
at System.Net.Browser.AsyncHelper.<>c__DisplayClass2.b__0(Object sendState)
--- End of inner exception stack trace ---
at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at EtsyV2NetSL.WebQuery.POST_ResponseCallback(IAsyncResult asynchronousResult)}
So my first thought was that I was being blocked by the server with their clientaccesspolicy.xml or crossdomain.xml. I've fired up Fiddler and saw the following:
GET http://openapi.etsy.com/clientaccesspolicy.xml > 596 (text/xml)
GET http://openapi.etsy.com/crossdomain.xml > 200 OK (application/xml)
So I checked their crossdomain.xml and the settings appear ok:
<!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
<allow-access-from domain="*"/>
</cross-domain-policy>
I've hit a dead end in trying to solve this problem. I'm running the test app on my dev machine from VS.
Does anyone have any ideas as to why Silverlight would be throwing this error?
Thanks
It seems like it's a client access policy issue, check this:
http://forums.silverlight.net/forums/p/26566/90867.aspx
It worked for me.
I dealt with a very similar problem today - however instead of an HTTP POST, I was attempting to do a WCF service call.
Here is the comment I placed in my code - please let me know if its not clear enough to be helpful.
// NB: Cross-domain bug
// If you end up here with a System.Security.SecurityException "Security error."
// Check that you're not trying to cross zones when making a service call
// (eg: Accessing Trigger Driver TimeSource service on http://IASWEB01/ when accessing the site via usertest.local
// or any other URI with dots in it - yes it seems crazy)
This seems to be some security 'feature'. With the WCF call I got this exception even before the Silverlight client attempted to fetch the clientaccesspolicy.xml from the target host. Very annoying issue without a real solution in sight!
I'm new to Silverlight programming and networking in general and I've been trying to find an answer to this all day. I'm trying to build a very simple Silverlight4 web application in VS2010 that calls a webservice on the ASP.NET website (exact same Solution as the Silverlight client app so there shouldn't be any cross-domain issues???). I wrote a Webservice using VS' "Silverlight-Enabled WCF Service" that simply returns a string.
I then wrote the code to consume the service in Silverlight:
public MainPage()
{
InitializeComponent();
TestServiceClient proxy = new TestServiceClient();
EndpointAddress address = new EndpointAddress("http://localhost:" + HtmlPage.Document.DocumentUri.Port +
"/SilverlightApplication1.web/TestService.svc");
proxy.Endpoint.Address = address;
proxy.GetStringCompleted += new EventHandler<GetStringCompletedEventArgs>(proxy_GetStringCompleted);
proxy.GetStringAsync();
}
void proxy_GetStringCompleted(object sender, GetStringCompletedEventArgs e)
{
MessageBox.Show(e.Result.ToString());
}
This works great when I run it from VS2010. However, when I publish it to my personal webserver (IIS7) on the same computer, I get an error:
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; OfficeLiveConnector.1.4; OfficeLivePatch.1.3; .NET4.0C; .NET4.0E)
Timestamp: Mon, 17 May 2010 08:29:51 UTC
Message: Unhandled Error in Silverlight Application An exception occurred during the operation, making the result invalid. Check InnerException for exception details. at System.ComponentModel.AsyncCompletedEventArgs.RaiseExceptionIfNecessary()
at SilverlightApplication1.TestServiceReference1.GetStringCompletedEventArgs.get_Result()
at SilverlightApplication1.MainPage.proxy_GetStringCompleted(Object sender, GetStringCompletedEventArgs e)
at SilverlightApplication1.TestServiceReference1.TestServiceClient.OnGetStringCompleted(Object state)
Line: 1
Char: 1
Code: 0
URI: http://thunder.webhop.org:8001/home.html
When I catch the exception in App.xaml.cs, I get the following message:
System.InvalidOperationException: Eval failed.
at System.Windows.Browser.HtmlWindow.Eval (String code)
at
SilverlightApplication1.App.ReportErrorToDOM(ApplicationUnhandledExceptionEventArgs e)
I should mention that the webserver otherwise seems to work fine. I can host Silverlight apps on it without any problems through port 8001. I just can't for the life of me figure out how to make a successful webservice call! Any help with this would be GREATLY appreciated. I've wasted an entire afternoon and evening on this. My mind's flipping in circles right now... :-(
Many, many thanks in advance!
Luck
P.S. Apologies for cross-posting at Silverlight forums but had some problems there while posting.
I guess this doesn't actually have to do with the web service call as the exception caught in App.cs says something about "Eval failed."
I think it might be the code in your proxy_GetStringCompleted handler. MessageBox.Show is nothing else than a JavaScript alert behind the scenes. Maybe you're using a browser that has a JavaScript blocker activated or the like? Anyway; what you could try is to simply use something else than MessageBox.Show(), e.g.
(new ChildWindow { Content = new TextBlock { Text = e.Result.ToString() } }).Show();
.
Cheers, Alex