EFCorePowerTools: Method not found: IServiceCollection AddHandlebarsScaffolding

Hi! Great tool, I use it daily for updating my model from db changes. It’s the best one I’ve used so far. From some days ago, I’m unable to reverse engineer my db. I get the following exception when I try to do so:

System.MissingMethodException: Method not found: 'Microsoft.Extensions.DependencyInjection.IServiceCollection Microsoft.EntityFrameworkCore.Design.ServiceCollectionExtensions.AddHandlebarsScaffolding(Microsoft.Extensions.DependencyInjection.IServiceCollection, Microsoft.EntityFrameworkCore.Design.ReverseEngineerOptions, System.ValueTuple`2<System.String,System.Action`3<System.IO.TextWriter,System.Object,System.Object[]>>[])'.
   at ReverseEngineer20.EfCoreReverseEngineer.GenerateFiles(ReverseEngineerOptions reverseEngineerOptions)
   at EFCorePowerTools.Handlers.ReverseEngineerHandler.<ReverseEngineerCodeFirst>d__2.MoveNext() in C:\projects\efcorepowertools\src\GUI\EFCorePowerTools\Handlers\ReverseEngineerHandler.cs:line 153

from the looks of it, it is similar to issue #35

Steps to reproduce

I guess the error started happening when I uninstalled another related tool, but to be honest, I really don’t know, so I’m asking for help. This my guess of the steps that would cause it again:

1. install https://github.com/ErikEJ/SqlCeToolbox
2. install https://github.com/ErikEJ/EFCorePowerTools
3. uninstall SqlCeToolbox
4. right click on project
5. select ef core power tools -> reverse engineer
6. click ok in the next 3 modals until the model generation is triggered
7. The exception is shown on the output window

First I used sqlcetoolbox for a few months. then I had to stop using it due to project requirements, so I went to using the old scaffold-dbcontext. After some months I came across efcorepowertools which made us very happy for some months. and now I’m having this issue. I hope I can go back to using it soon!

Further technical details

EF Core Power Tools version: Version 1.0.612.0

SQL Server Compact 4.0 in GAC - Yes - 4.0.8876.1 SQL Server Compact 4.0 DbProvider - Yes

SQL Server Compact 4.0 DDEX provider - No SQL Server Compact 4.0 Simple DDEX provider - Yes

SQLite ADO.NET Provider included: 1.0.107.0 SQLite EF6 DbProvider in GAC - No

System.Data.SQLite DDEX provider - No SQLite Simple DDEX provider - Yes

Database engine: SQL Server

Visual Studio version: Visual studio enterprise 2017 version 15.6.6