Current controlled voltage source trouble

Hello, I've searched around and can't find anything that explains why I'm getting errors when trying to simulate this circuit.  I would apppreciate any help.  I need the votage source on the right to be controlled by the current going through R4, specifically 150 * I(R4).  I can't seem to get it to work.  Thanks for your time.
Attachments:
design2.png ‏21 KB

Hi
You should use the AC button on the multi-meter instrument.
Tien P.
National Instruments

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