Upgrade question #6146

I have ASP.NET CORE MVC & jQuery with .NET Framework 4.6.1 on ASP.NET Zero version 6.2.1 up and running. I have added some entities with the RAD tool to test out a few things. I tried to upgrade to ASP.NET Zero 6.4.0, and did this by copying and pasting all files from 6.4.0 to my 6.2.1 files in Windows Explorer, overwriting any files in conflict. I realize this would probably break the entities I added with the RAD tool, but as a test, I expected at least to be up and running on 6.4.0 without the entities I added.

After copying over the files, I ran yarn, Update-Database, and npm run create-bundles.

Shouldn't this work (meaning get 6.4.0 working)?

I get these build errors:

Severity	Code	Description	Project	File	Line	Suppression State
Error	CS0117	'AppSettings.UserManagement' does not contain a definition for 'IsCookieConsentEnabled'	XYZ.WER.Application	D:\WER\src\XYZ.WER.Application\Configuration\Host\HostSettingsAppService.cs	94	Active
Error	CS0117	'AppSettings.UserManagement' does not contain a definition for 'IsCookieConsentEnabled'	XYZ.WER.Application	D:\WER\src\XYZ.WER.Application\Configuration\Host\HostSettingsAppService.cs	248	Active
Error	CS0117	'AppSettings.UserManagement' does not contain a definition for 'IsCookieConsentEnabled'	XYZ.WER.Application	D:\WER\src\XYZ.WER.Application\Configuration\Tenants\TenantSettingsAppService.cs	136	Active
Error	CS0117	'AppSettings.UserManagement' does not contain a definition for 'IsCookieConsentEnabled'	XYZ.WER.Application	D:\WER\src\XYZ.WER.Application\Configuration\Tenants\TenantSettingsAppService.cs	312	Active
Warning	MSB3245	Could not resolve this reference. Could not locate the assembly "System.ComponentModel.DataAnnotations". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.	XYZ.WER.Core.Shared	C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets	2110	
Warning	MSB3245	Could not resolve this reference. Could not locate the assembly "System.ComponentModel.DataAnnotations". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.	XYZ.WER.Application.Shared	C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets	2110	
Error	CS0579	Duplicate 'Area' attribute	XYZ.WER.Web.Mvc	D:\WER\src\XYZ.WER.Web.Mvc\Areas\App\Controllers\CommonController.cs	8	Active
Error	CS0101	The namespace 'XYZ.WER.Identity' already contains a definition for 'ISmsSender'	XYZ.WER.Core	D:\WER\src\XYZ.WER.Core\Net\Sms\ISmsSender.cs	5	Active
Error	CS0101	The namespace 'XYZ.WER.Web.Areas.App.Controllers' already contains a definition for 'CommonController'	XYZ.WER.Web.Mvc	D:\WER\src\XYZ.WER.Web.Mvc\Areas\App\Controllers\CommonController.cs	10	Active
Error	CS0101	The namespace 'XYZ.WER.Web.Areas.App.Views.Shared.Components.AppDefaultBrand' already contains a definition for 'AppDefaultBrandViewComponent'	XYZ.WER.Web.Mvc	D:\WER\src\XYZ.WER.Web.Mvc\Areas\App\Views\Shared\Components\AppDefaultBrand\AppDefaultBrandViewComponent.cs	9	Active
Warning	CS0472	The result of the expression is always 'true' since a value of type 'int' is never equal to 'null' of type 'int?'	XYZ.WER.Application	D:\WER\src\XYZ.WER.Application\Activities\ActivitiesAppService.cs	78	Active
Warning	CS0472	The result of the expression is always 'true' since a value of type 'int' is never equal to 'null' of type 'int?'	XYZ.WER.Application	D:\WER\src\XYZ.WER.Application\Contacts\ContactsAppService.cs	81	Active
Warning	CS0472	The result of the expression is always 'true' since a value of type 'int' is never equal to 'null' of type 'int?'	XYZ.WER.Application	D:\WER\src\XYZ.WER.Application\Opportunities\OpportunitiesAppService.cs	77	Active
Warning	CS0472	The result of the expression is always 'true' since a value of type 'int' is never equal to 'null' of type 'int?'	XYZ.WER.Application	D:\WER\src\XYZ.WER.Application\ServiceRequests\ServiceRequestsAppService.cs	77	Active
Error	CS0246	The type or namespace name 'IUiCustomizer' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Core	D:\WER\src\XYZ.WER.Web.Core\UiCustomization\Metronic\Theme11UiCustomizer.cs	11	Active
Error	CS0246	The type or namespace name 'IUiCustomizer' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Core	D:\WER\src\XYZ.WER.Web.Core\UiCustomization\Metronic\Theme2UiCustomizer.cs	11	Active
Error	CS0246	The type or namespace name 'IUiCustomizer' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Core	D:\WER\src\XYZ.WER.Web.Core\UiCustomization\Metronic\Theme3UiCustomizer.cs	11	Active
Error	CS0246	The type or namespace name 'IUiCustomizer' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Core	D:\WER\src\XYZ.WER.Web.Core\UiCustomization\Metronic\Theme7UiCustomizer.cs	11	Active
Error	CS0246	The type or namespace name 'IUiCustomizer' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Core	D:\WER\src\XYZ.WER.Web.Core\UiCustomization\Metronic\Theme8UiCustomizer.cs	11	Active
Error	CS0246	The type or namespace name 'IUiCustomizer' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Core	D:\WER\src\XYZ.WER.Web.Core\UiCustomization\Metronic\ThemeDefaultUiCustomizer.cs	11	Active
Error	CS0246	The type or namespace name 'IUiCustomizer' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Core	D:\WER\src\XYZ.WER.Web.Core\UiCustomization\UiThemeCustomizerFactory.cs	24	Active
Error	CS0246	The type or namespace name 'IUiCustomizer' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Core	D:\WER\src\XYZ.WER.Web.Core\UiCustomization\UiThemeCustomizerFactory.cs	30	Active
Error	CS0246	The type or namespace name 'IUiCustomizer' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Core	D:\WER\src\XYZ.WER.Web.Core\UiCustomization\UiThemeCustomizerFactory.cs	35	Active
Error	CS0246	The type or namespace name 'IUiThemeCustomizerFactory' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Core	D:\WER\src\XYZ.WER.Web.Core\UiCustomization\UiThemeCustomizerFactory.cs	11	Active
Error	CS0246	The type or namespace name 'IUiThemeCustomizerFactory' could not be found (are you missing a using directive or an assembly reference?)	XYZ.WER.Web.Mvc	D:\WER\src\XYZ.WER.Web.Mvc\Views\WERRazorPage.cs	16	Active
Error	CS0234	The type or namespace name 'Swagger' does not exist in the namespace 'XYZ.WER.Web' (are you missing an assembly reference?)	XYZ.WER.Web.Mvc	D:\WER\src\XYZ.WER.Web.Mvc\Startup\Startup.cs	42	Active
Error	CS0111	Type 'CommonController' already defines a member called 'LookupModal' with the same parameter types	XYZ.WER.Web.Mvc	D:\WER\src\XYZ.WER.Web.Mvc\Areas\App\Controllers\CommonController.cs	12	Active
Error	CS0111	Type 'ISmsSender' already defines a member called 'SendAsync' with the same parameter types	XYZ.WER.Core	D:\WER\src\XYZ.WER.Core\Net\Sms\ISmsSender.cs	7	Active

I do get ASP-NET Zero version 6.4.0 working by itself just fine, but not when copying over all the files to my existing 6.2.1 solution.