When using the client test tools using a GetParameterMessage I get this message back for a parameter with the parameter in the xml with these tags:

<Type>read</Type>
            <Interprete>
                <RawType>other</RawType>
                <LengthType>next param</LengthType>
                <Type>string</Type>
            </Interprete>
            <Display>
                <RTDisplay>false</RTDisplay>
            </Display>
            <Measurement>
                <Type>string</Type>
            </Measurement>
        </Param>

Does anyone know what's causing the error below?