Question

I’m attempting to deploy a WPF application to IIS. After copying the files to the server, when I attempt to download and run the .application file, I get an error:

Application cannot be started, please contact the vendor.

The detailed log shows the error:

Deployment and application do not have matching security zones.

I noticed someone else had a similar problem a while ago.

Can anyone help?

Answer 1

This error was due to me copying the wrong root path up to the web server. I copied the entire “Release” folder to my target URL, but I needed to copy just the app.publish sub-folder.

I encountered a couple more problems on the way:

1. My deployment included some files in the App_Data folder. IIS7 was blocking this, and I needed to remove “App_Data” from the “Hidden Segments” of “Request Filtering”.
2. I started seeing an error "my.dll already exists in some-random-temp-folder". I just excluded the DLL from my deployment files. I think it had already been marked as “prerequisite”.

There’s an excellent answer here that provides instructions and some context.