Error: EDK:3759 AddressGen MHS

ERROR:EDK:3759 - AddresGen MHS Error Address Generator can not generate address map for your design. Please check if there is address conflict, clear the conflict and re-generate the address map.Please consult the online help for how to let Address Generator to overwrite the address. If Address Generator still can not generate the address map, please provide the address map manually.
axi_plbv46_bridge_1 has been deleted from the project


So the setup here is I was try to add one normal core that just connects to an axi, and then another core that connects to a plb that also connects to an axi, so axi-to-plb bridge

ISE 14.7

Here are the steps to make it work:

1. Add just the core that only connects the that axi first and then click the address gen button
2. For the Axi-to-plb bridge core, first add the core, set the address
3. Then add the bridge, the bridge MUST be connected to the same interconnect as any other bridges of the same type

Yea this one is frustrating.