CS1056 unexpected character '`'

[goelon]

I am trying to create the WaveTrend/WaveMotion Indicator into a automated strategy. I am running into an issue while loading the data

I coded it like this, but I keep on getting an error CS1056 for the (`)
else if (State == State.DataLoaded)
{

WaveMotion201 = WaveMotion20(Close, 10, 21, NinjaTrader.NinjaScript.Series1`[System.Double]);

}

What should I do. I've attached the indicator and snappshot

https://ninjatraderecosystem.com/user-app-share-download/wave-trend-oscillator-2/

This is the indicator

[bltdavid]

That download link is not for the "WaveMotion20" indicator you are using.

Where does WaveMotion20 come from?

[goelon]

Hey, I figured this out. The wavemotion is identical to thee wavetrend indicator, except the wavetrend is coded better. I was able to use the wavetrend instead of the wavemotion.