@Brendan thanks for the help
So looks like you're combining Portal Engine and MVC dev in one project. Was that working prior to applying the HF?
This doesn't have the hotfix applied. It's a branch up from the dev environment. And yes, it's working fine. I have already applied the hotfix to this same project by extracting files with cmd.exe then just merging them manually and running the SQL script
Secondly, what directory are you pointing to when you're running the tool? It should be pointing to the first screenshot you provided.
I get this message whether I point at the (root) or at /CMS/
Lastly, if you downloaded the HF application from the DevNet, you should be able to run/extract it by double clicking it. Then follow the on-screen instructionsfrom the tool. It will direct you through the process. If it errors out, it does keep a log of the process and errors so you could view that and look for further details on where and why it failed.
Log files are typically stored in here C:\Program Files (x86)\Kentico. You can also find log files in the root of the project under log.txt.
I'm not seeing this log file. I don't think the log runs unless you can actually get past the message in description. I've had no issues once the installer actually runs. The problem in this case is that it won't let me even start the hotfix against my project. I had to manually extract the files and manually merge 20k lines of csproj, plus delete files etc