Good idea. I do not know the log file.
It gives me a better idea now:
2011-01-13 22:37:46,849 ERROR mojoPortal.Web.UI.CmsPage - failed to load control KSearchEngine/KSearchEngineModule.ascx
System.Web.HttpCompileException (0x80004005): C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\6468bc7a\b2bc0684\App_Web_ksearchenginemodule.ascx.f3207536.dhspqbsw.0.vb(86): error BC32206:
The project currently contains references to more than one version of mojoPortal.Web.Controls,
a direct reference to version 1.0.4001.14108
and an indirect reference (through 'KSearchEngine.UI.KSearchEngineModule.ctop1') to version 1.0.4030.37713.
Change the direct reference to use version 1.0.4030.37713 (or higher) of mojoPortal.Web.Controls.
at System.Web.Compilation.AssemblyBuilder.Compile()
at System.Web.Compilation.BuildProvidersCompiler.PerformBuild()
at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath)
at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate)
at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate)
at System.Web.Compilation.BuildManager.GetVPathBuildResult(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean ensureIsUpToDate)
at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath)
at mojoPortal.Web.UI.CmsPage.LoadPage()
My local PC run v2.3.5.8 and the site is v2.3.5.8 too.
What's the best idea? I cleaned and recompiled my dev project et updated all the files to the site: always the same error.
A Idea?