Deb file could not be opened on Ubuntu

I have an Ubuntu 11.10 Beta 1 and I am trying to install Chrome 14 on it. However, I got the following error. How can I install Chrome 14 on it? The error is stating that the .deb file could not be opened. How to fix this issue and install from the Software Center?

Ubuntu Software Center
Internal Error
The file "/home/mark/Downloads/google-chrome-stable_current_amd64.deb" could not be opened.
