PCA10040 won't connect

[rdpoor]

I just downloaded SEGGER Embedded Studio (ARM V4.52c) and plugged in my rather old PCA10040.  It offered to upgrade the driver, which I accepted.  Now, when I click "Connect J-Link", it appears to connect ("CortexM4 on J-Link"), and I can click on "Target => Erase All" and "Target => Reset J-Link" without error.

But when I click on "Debug => Go", I get a dialog

Is there a simple remedy for this?  Or perhaps is this a "PICNIC" error (Problem In Chair, Not In Computer")?

Thanks in advance.

[rdpoor]

Confirmed PICNIC error: the target processor (Project => Options => Debug => Debugger => Target Device) was not set properly.  After setting it to nRF52832_xxAA, all happy.