Cannot Download Micro Motion Inc 2000 DevRev 5

Hi all am facing problem in downloading Micro Motion Inc 2000 DevRev 5!!! I am able to commission and decommission the device and am also able to read the values in AMS device manager but after commissioning the device am not ale to download the device and also the module (AI).

I am getting error could not transfer the configuration to the field device One or more of the function blocks referenced may not be available in the device.

And am sure its not the problem with DD file as i have commissioned and downloaded same make device just before this one.