This issue affects Vivado 2016.1 and the Soft Error Mitigation (SEM) IP v4.
Impacted Devices: 7 Series and Zynq-7000
Targeting any 7 Series/Zynq-7000 device to generate the SEM IP and trying to customize the core will return the following error in Vivado 2016.1:
1) Install the patch that is attached to this AR. AR67055_Vivado_2016.1_SEMIP_v4.1_preliminary_rev1.zip
Do not upgrade the core in a 2016.1 Vivado project prior to installing the patch.
2) Generate and use the SEM IP from Vivado 2015.4
The SEM IP has had no changes made with regard to 7 Series/Zynq-7000 in Vivado 2016.1, so continuing to use the 2015.4 version is a safe workaround.