Kentico Xperience Baseline Walkthrough

I am following the YouTube tutorial video by Trev Frayas and have an issue when trying to add the Nuget Package for "RelationshipsExtended" at this point of the video. I get an error E 11/4/2020 3:16:27 PM Import objects IMPORT administrator

Error during import process ERROR:@@Error during import process Message: Error during temporary files creation. Original exception: [ImportProvider.CreateTemporaryFiles]: Data not found or the package is not a valid export package. (C:\inetpub\sites\Kentico12Local\KenticoAdmin\CMS\App_Data\CMSTemp\ImportExport\Data) Exception type: System.Exception Stack trace: at CMS.CMSImportExport.ImportProvider.CreateTemporaryFiles(SiteImportSettings settings) at CMS.CMSImportExport.ImportProvider.ImportObjectsDataInternal(SiteImportSettings settings) Message: [ImportProvider.CreateTemporaryFiles]: Data not found or the package is not a valid export package. (C:\inetpub\sites\Kentico12Local\KenticoAdmin\CMS\App_Data\CMSTemp\ImportExport\Data) Exception type: System.Exception Stack trace: at CMS.CMSImportExport.ImportProvider.CreateTemporaryFiles(SiteImportSettings settings) ERROR:@@Error during temporary files creation. Message: [ImportProvider.CreateTemporaryFiles]: Data not found or the package is not a valid export package. (C:\inetpub\sites\Kentico12Local\KenticoAdmin\CMS\App_Data\CMSTemp\ImportExport\Data) Exception type: System.Exception Stack trace: at CMS.CMSImportExport.ImportProvider.CreateTemporaryFiles(SiteImportSettings settings) Preparing temporary files Plus E 11/4/2020 3:16:27 PM ModuleInstaller FAILURE Source: ModuleInstaller Event code: FAILURE Description: Message: Installation of module 'RelationshipsExtended' in version 12.29.5 failed. Exception type: CMS.Modules.ModuleInstallationException Stack trace: at CMS.Modules.ModuleInstaller.InstallModule(BasicModuleInstallationMetaData basicModuleInstallationMetaData, IUserInfo userInfo) at CMS.Modules.ModuleInstaller.ProcessInstallation() Message: Module with name 'RelationshipsExtended' was not found. Parameter name: moduleInstallationMetaData Exception type: System.ArgumentException Stack trace: at CMS.Modules.InstallableModulesManager.SetModuleInstallationState(BasicModuleInstallationMetaData moduleInstallationMetaData, String state) at CMS.Modules.ModuleInstaller.InstallModule(BasicModuleInstallationMetaData basicModuleInstallationMetaData, IUserInfo userInfo) Event URL: /CMSModules/ApplicationDashboard/ApplicationDashboard.aspx When I started ran the Hotfix (as the video recommended) it was "v12.0.90" while in his video Trev only could go up to “v12.0.80”, would this be the cause of the problem?

All the other packages successfully installed. Any help at all would be appreciated.

Also: When I run the hotfix for the MVC site which level of the directory do I select as the "physical path" in KIM? C:\inetpub\sites\Kentico12Local\MVC or C:\inetpub\sites\Kentico12Local\MVC\MVC