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HomeHomeUsing DNN Platf...Using DNN Platf...Upgrading DNN P...Upgrading DNN P...Upgrading to 5.5 / Downgrading ProblemsUpgrading to 5.5 / Downgrading Problems
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8/26/2010 9:12 AM
 
nectar

Joined: 4/14/2005
Posts: 232
Hello all,

I was running version 5.4.4 and decided to upgrade to the BETA version of DNN 5.5 a few weeks ago.
The upgrade went fine, but had a few problems with the an external module and decided to downgrade
back to 5.4.4. After that, I got an error.

Now I that the 5.5 version is out, I tried to upgrade to that but I still get an error which looks like this:

DotNetNuke Error

Error An error has occurred.
An error has occurred.

There's nothing else to help me with the error's description. Could anyone please help?

Thanks!
 
New Post
8/26/2010 9:25 AM
 
Sebastian Leupold


Sebastian Leupold's Avatar

Sebastian Leupold's Avatar

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Sebastian Leupold's Avatar

www.dnnwerk.de
Joined: 3/8/2004
Posts: 46212
how did you try downgrade? did you restore a previous backup of all files and the database?
Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
New Post
8/26/2010 9:34 AM
 
nectar

Joined: 4/14/2005
Posts: 232
Hello Sebastian,

no, I downloaded the 'install packages of 5.4.4' and tried to downgrade.
Now, after the downgrade I get the following message:

Server Error in '/' Application.

Object reference not set to an instance of an object.

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.NullReferenceException: Object reference not set to an instance of an object.

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: 

[NullReferenceException: Object reference not set to an instance of an object.]
   DotNetNuke.Entities.Tabs.TabController.GetTabByTabPath(Int32 portalId, String tabPath) +15
   DotNetNuke.HttpModules.UrlRewriteModule.RewriteUrl(HttpApplication app) +2453
   DotNetNuke.HttpModules.UrlRewriteModule.OnBeginRequest(Object s, EventArgs e) +809
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053
 
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8/26/2010 12:12 PM
 
Sandro De Matteis


www.sandrodematteis.com
Joined: 12/30/2005
Posts: 190
You cannot downgrade a Dnn installation.
You can only restore 5.4.4 db and all files you have before upgrade.

Sandro


Sandro De Matteis Microsoft IT Pro: Enterprise Admin, Enterprise Messaging Admin Technology Specialist: Microsoft Virtualization Dnn portals: http://www.dbdog.it , http://www.royalcrestgoldn.it, http://www.retrieversclub.it
 
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8/26/2010 1:13 PM
 
Sebastian Leupold


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www.dnnwerk.de
Joined: 3/8/2004
Posts: 46212
sandro is right, only upgrades are supported.
Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
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