Dear all, 

I do a fresh install of DotnetNuke 4.5.5 with IIS 5.1 and SQL Server 2005 Express.

The database's script installation works fine (text in French):

Installation de la base de données - Version 4.4.0...Succès
Mise à jour vers la Version 4.4.1...Succès
Mise à jour vers la Version 4.5.0...Succès
Mise à jour vers la Version 4.5.1...Succès
Mise à jour vers la Version 4.5.2...Succès
Mise à jour vers la Version 4.5.3...Succès
Mise à jour vers la Version 4.5.4...Succès
Installation terminée

The initialisation of the database return:

Installation de la base de données - Version 4.4.0...Mise à jour vers la Version ERROR: See E:\DNN455\Providers\DataProviders\SqlDataProvider\04.04.00.log for more information...

The debugger stops at the line:

Private Function InstallVersion(ByVal strVersion) As String

With the error:Conversion from string "ERROR: See E:DNN455ProvidersData" to type 'Integer' is not valid.

Can you help me please ?

Thanks

Dim strErrorMessage As String = Null.NullString

Dim version As Integer() = Services.Upgrade.Upgrade.GetVersion(strVersion)

I've finally found the problem.

Check the SQL scripts with SQL Server Query Analyzer. Scripts for the version 4.5.1 have a bad stored procedure definition. But a newer definition can be found on script version 4.5.3 (or another).

I've simply deleted the bad stored procedure on the 4.5.1 script, and running the script.

Please note that other errors exists, on the constraint check. Manually runs script, verify with SQL Management Console that the constraint already exists, delete them on the script and re-run the script.

One or more scripts want to change the datatype of fields. If your table is empty, you can modify the datatype manually and delete them on the script.

Finally, run InstallWizard.aspx. If no portal have been defined on the database, modify the InstallWizard.aspx to starts at step 4. Then, the wizard tell you about admin account, portal information and initialize the database.

It's hard to do, but now my DNN works fine.