HI,
i have tried to make an upgrade from my 4.9.5 installation to a version 5.1.2, but i have had some error.
During the "upgrade" process i got this error

00:00:00.234 - Upgrading to Version: 05.01.02
00:00:01.757 -   Executing Script: 05.00.00.SqlDataProvider Error! (see 05.00.00.log for more information)
00:00:09.565 -   Executing Script: 05.00.01.SqlDataProvider Success
00:00:12.275 -   Executing Script: 05.01.00.SqlDataProvider Error! (see 05.01.00.log for more information)
00:00:17.021 -   Executing Script: 05.01.01.SqlDataProvider Success
00:00:18.662 -   Executing Script: 05.01.02.SqlDataProvider Success
... from this point all seems to be OK in the log.

after this i have tried to start the site but i receive this error

Could not load provider DotNetNuke.Services.Cache.FileBasedCachingProvider.FBCachingProvider, DotNetNuke.Caching.FileBasedCachingProvider

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.Configuration.ConfigurationErrorsException: Could not load provider DotNetNuke.Services.Cache.FileBasedCachingProvider.FBCachingProvider, DotNetNuke.Caching.FileBasedCachingProvider

Source Error: 

Line 71:             'Install most Providers as Singleton LifeStyle
Line 72:             ComponentFactory.InstallComponents(New ProviderInstaller("data", GetType(DotNetNuke.Data.DataProvider)))
Line 73:             ComponentFactory.InstallComponents(New ProviderInstaller("caching", GetType(Services.Cache.CachingProvider)))
Line 74:             ComponentFactory.InstallComponents(New ProviderInstaller("logging", GetType(Services.Log.EventLog.LoggingProvider)))
Line 75:             ComponentFactory.InstallComponents(New ProviderInstaller("scheduling", GetType(Services.Scheduling.SchedulingProvider)))

[ConfigurationErrorsException: Could not load provider DotNetNuke.Services.Cache.FileBasedCachingProvider.FBCachingProvider, DotNetNuke.Caching.FileBasedCachingProvider]
   DotNetNuke.ComponentModel.ProviderInstaller.InstallProvider(IContainer container, Provider provider) +383
   DotNetNuke.ComponentModel.ProviderInstaller.InstallComponents(IContainer container) +106
   DotNetNuke.ComponentModel.ComponentFactory.InstallComponents(IComponentInstaller[] installers) +44
   DotNetNuke.Common.Global.Application_Start(Object Sender, EventArgs E) in C:\DotNetNuke\WebSite\App_Code\Global.asax.vb:73

Can someone help me ??
Thanks in advance
Stefano

I just got the same error while attempting an upgrade, I had to roll back to 4.9.5 

anyone figure out the problem? I tried to comment out line 73 and it throws an error on the next line (line 74 ' logging' ).

I'm going to try to update one version at a time to see if I can figure out where it went wrong.

Hi, any news about this issue ???
I cannot upgrade and must i stay with 4.9.5 version forever ???

please help us !!!