Unable to import wsdl file into Service Test Manager or Service Test

I am receiving the following error when trying to import a wsdl file into STM. "An error occurred while importing the service - Service import start

Importing service from C:\Users\sokol\Documents\Automation\Seats\WSDL\wsdlname.wsdl...
Parsing WSDL...
Parsing with .NET toolkit...
Creating directory for parsing...
Creating directory for parsing - done.
Quality Center was unable to parse the WSDL using the .NET toolkit, possibly due to one of the following reasons:
- The WSDL does not conform to Web services specifications.
- The WSDL requires authentication or is accessible through a proxy server only.
- The WSDL is not supported by the toolkit.

Parsing with Axis toolkit...
Creating directory for parsing...
Creating directory for parsing - done.
Quality Center was unable to parse the WSDL using the Axis toolkit, possibly due to one of the following reasons:
- The WSDL does not conform to Web services specifications.
- The WSDL requires authentication or is accessible through a proxy server only.
- The WSDL is not supported by the toolkit.

Quality Center was unable to parse the WSDL after using all available toolkits."

This wsdl works fine in SOAPUI so I am confused. Please assist.