Thank you for your post. After looking into this, it appears the formatting is just off slightly. When concatenating two fields, please be sure to do the following steps:
1. Create a new field, and ensure the type is set correctly (e.g. string)
2. In the Derive from Expression field, type the following: (Street)&” “&(Type)
NOTE: important to use brackets not quotes for the field names you want to concatenate.
If you are still having problems, please don’t hesitate to contact us via email at firstname.lastname@example.org