I'm having a sligt problem, I've written my program, tested and debugged it, and yet whenever I go to publish the program this error appears, and the Publishing is suddenly halted. I have tried a solution i have found elsewhere on the Internet, it involved loading the temporary key as the certificate, but this meant that i would be the only one able to use this project, and I need this to work on multiple accounts/machines. Any help is very much appreciated.

Thanks for any help in advance,