Thank you dibl, I look forward to seeing your explanation.
I was inspired to try it again - as usual, I was concentrating so hard I missed the fact that they had a folder in the text I copied that I do not have.
With that corrected, I was able to open it from the terminal, with a few errors, but flash worked.
One of the errors was a sandbox error, but it seems to have corrected itself. I added the entry to the menu and it works fine.
Now, I just see the following errors if I open it from the terminal. I would certainly welcome input. I'm guessing the tracker and registration errors may not be all bad.
[4875:4891:0416/175221:ERROR:connection_factory_impl.cc(368)] Failed to connect to MCS endpoint with error -105
[4875:4875:0416/175223:ERROR:account_tracker.cc(357)] OnGetTokenFailure: Invalid credentials.
[4875:4875:0416/175223:ERROR:account_tracker.cc(357)] OnGetTokenFailure: Invalid credentials.
[4875:4891:0416/175223:ERROR:registration_request.cc(184)] URL fetching failed.