As I was working on a build server, I ran into an issue importing pfx (assembly signing) files. I kept getting an error – “Failed to install key pair–Object already exists” trying to run the following command:
sn –I myfile.pfx VS_KEY_XXXXXX
Of course, I have to import my files on build machine in order to perform successful build. I tried to delete the container, issuing the following command:
sn –d VS_KEY_XXXXXX
I got an error – “Container does not exist”.
I kept on struggling with this issue for a while, but got nowhere. Then it hit me. Maybe another user tried to import the same file already? I logged in as one of the users who also tried to work on the build process. I was able to delete the container. Then I logged in as the TFS Build service user again and was able to successfully import the PFX file then. Moral of the story – apparently on Windows Server 2012 you can run into issues if multiple user profile try to import the same PFX file.
I hope this post will save someone some grey hairs. Mine is practically gone already, so no harm done here.