I am getting the exact same error message.
And when I check in the preferences I can't pick GPU. It worked fine with 11.0.0, but with 11.0.1 it does not work.
I even upgrade my CUDA past 4.2.7 to 4.2.10 which didn't show up in the control panel, but can be downloaded from NVIDIA's web site, but that didn't help.
And I have tried trashing both the Adobe After Effects 11.0 MC Prefs file and Adobe After Effects 11.0-x64 Prefs, and then tried the entire 11.0 folder in After Effects Preferences, but the problems continues to occur.
Europe, Middle East and Africa