How to get rid of "Invalid Command Line" on Arena

[jplchess]

To chess community:
I don't ask much but the error message "Invalid Command Line" is really annoying.
The previous Arenas (like Arena 3 and before) did not have this.
I put the 2 engines to the test and black's side is usually not working.
Should I use something not Demo to start a game?

Thanks for any input,
Jonathan Lee

[Colin-G]

To chess community:
I don't ask much but the error message "Invalid Command Line" is really annoying.
The previous Arenas (like Arena 3 and before) did not have this.
I put the 2 engines to the test and black's side is usually not working.
Should I use something not Demo to start a game?

Thanks for any input,
Jonathan Lee

I've never seen that message using v3.5 or v3.51
To start engine-engine matches, I just click on start or resume button in the Tournament window.
"Engines" menu >> "Tournament..."
To start playing against an engine, just make a move, or if you want to play with black, just click on "Move now!"
"Game" menu >> "Move now!"
I never use the "Demo" option.
If you still have problems, have a look in the log file
"Engines" menu >> "Log-Window"
and see if there is more info about the problem.

[jplchess]

Thanks Colin for quick reply and some input but not all worked yet.
I have Arena 3.5.1.
I have not used Demo lately and I don't get "Invalid Command Line" anymore.
I had SF 8 working a few days ago.

Move Now works with one ply, not the whole game.

More input needed please for Christmas,
Jonathan Lee

[gerold]

Have you tried downloading it again and also using different engines.

I use the same Arena as you, have had no problem with any engine running.

[jplchess]

Gerold:
Thank you.
Nice shiny pieces of wood for computer graphics on Arena 3.5.1!

By downloading from the start does make it work.
Jonathan Lee