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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...tagPrefix error on every pagetagPrefix error on every page
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6/29/2010 8:06 PM
 
Abhishek Kant

Joined: 12/28/2004
Posts: 66
hi

i am getting "tagPrefix" errors on every page on my DNN install. I have updated my install to latest DNN 5.4.4 but the error has been there from earlier and still persisting. the exact error is:
The string parameter 'tagPrefix' cannot be null or empty.  Parameter name: tagPrefix

Stacktrace is as follows:
DotNetNuke.Services.Exceptions.PageLoadException: The string parameter 'tagPrefix' cannot be null or empty.  Parameter name: tagPrefix ---> System.ArgumentException: The string parameter 'tagPrefix' cannot be null or empty.  Parameter name: tagPrefix     at System.Web.UI.TagPrefixAttribute..ctor(String namespaceName, String tagPrefix)     at System.Reflection.CustomAttribute._CreateCaObject(RuntimeModule pModule, IRuntimeMethodInfo pCtor, Byte** ppBlob, Byte* pEndBlob, Int32* pcNamedArgs)     at System.Reflection.CustomAttribute.CreateCaObject(RuntimeModule module, IRuntimeMethodInfo ctor, IntPtr& blob, IntPtr blobEnd, Int32& namedArgs)     at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType, Boolean mustBeInheritable, IList derivedAttributes, Boolean isDecoratedTargetSecurityTransparent)     at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeAssembly assembly, RuntimeType caType)     at System.Reflection.RuntimeAssembly.GetCustomAttributes(Boolean inherit)     at System.Web.UI.AssemblyCache.GetAjaxFrameworkAssemblyAttribute(Assembly assembly)     at System.Web.UI.ScriptManager.get_DefaultAjaxFrameworkAssembly()     at System.Web.UI.ScriptManager..ctor()     at DotNetNuke.Framework.AJAX.AddScriptManager(Page objPage)     at DotNetNuke.Framework.PageBase.OnInit(EventArgs e)     at System.Web.UI.Control.InitRecursive(Control namingContainer)     at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)     --- End of inner exception stack trace ---

Can someone suggest how can this be corrected?

Cheers
Abhishek Kant
 
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6/30/2010 12:36 AM
 
William Severance


www.wesnetdesigns.com
Joined: 2/18/2005
Posts: 3253
That may be caused by the DNN Gallery module v 4.3.0 if you are running in an ASP.Net 4.0 application pool.

If you have the Gallery module installed but you are not using it on any pages of any portals of the installation, I would suggest uninstalling it.

If you are using the Gallery module I would suggest upgrading it to the  v 4.3.1 Release Candidate which is available at http://dnngallery.codeplex.com/releas... and which addresses the tagPrefix issue and several others when running under ASP.Net 4.0. Note however, that this is a release candidate and that it has not yet been submitted for DotNetNuke extensions release testing.
Bill, WESNet Designs
Team Lead - DotNetNuke Gallery Module Project (Not Actively Being Developed)
Extensions Forge Projects . . .
Current: UserExport, ContentDeJour, ePrayer, DNN NewsTicker, By Invitation
Coming Soon: FRBO-For Rent By Owner
 
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6/30/2010 1:58 AM
 
Abhishek Kant

Joined: 12/28/2004
Posts: 66
thanks.. Gallery module was the one creating the issue. have uninstalled the same and everything is working fine now...
 
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4/9/2012 1:29 PM
 
Bill Houston

househandler.com
Joined: 3/23/2006
Posts: 33
Had the same issue with the Gallery. I was not using the gallery but had it installed so I uninstalled it and had the same issue, so i updated all the module that needed updated and still had the same issue. Ended up installing the latest version of the Gallery and it fixed the issue.
 
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6/7/2013 11:30 AM
 
Eric Pontbriand

www.mediainfocus.com
Joined: 10/24/2005
Posts: 7
William Sir, YOU THE MAN!!! THANK YOU, THANK YOU, THANK YOU!!!
 
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