What are the supported fieldtypes? Also are the type names available in the csv identical to the types you would define in the python dict "fieldType" key?
I see this document https://github.com/numenta/nupic/wiki/NuPIC-Input-Data-File-Format but is it out of date? When I tried specifying an "integer" field I got RuntimeError: Unsupported field type "integer" Replacing it with int seems to have fixed it. The document also mentions a boolean type but that also gives: RuntimeError: Unsupported field type "boolean"
