Spectrum Modeling Gateway import exception "Parse error: invalid element"

Spectrum Modeling Gateway import exception "Parse error: invalid element". The entire error is seen below:

Modeling Gateway import exception: 

java.lang.Exception: Parse error: invalid element <Device model_handle="0x1c96f6" /> 

Examine the xml file used for the import. Find the <Device model_handle=....> tag for the model handle displayed in the error. In the above example, the following is seen in the xml file for that model handle: 

<Device model_handle="0x1c96f6" > <Port identifier_name="portID" identifier_value="" model_handle="0x1c9795" /></Device> 

The above entry is missing the network_address parameter. It should look like the following: 

<Device network_address="1.2.3.4" model_handle="0x1c96f6" > <Port identifier_name="portID" identifier_value="10140" model_handle="0x1c9795" /></Device> 

The cause of the missing network_address parameter is the associated model in the database where the Modeling Gateway export was run does not have the Network_Address attribute id 0x12d75 populated.