I've noticed some folks having problems installing Terraman in the latest version (3.6). Particularly users that don't previously have a userSetup.mel created in their scripts directory.
Follow these steps if you are having problems, especially creating and exporting cameras:
Add these lines to your userSetup.mel - if you don't have one, simply create a text file named userSetup.mel in C:\Users\<YOUR USER NAME>\Documents\maya\<VERSION>\scripts
Note the case and the extension is .mel not .txt
Add these lines to file:
Launch or restart Maya.
Thanks for maintaining this so well for the community! :)