Ninjascript Error After Importing Indacator

[babba]

I'm getting errors in these indicators after importing an indicator.
Tried to delete but can't they are system indicators. Maybe they can be
fixed. Please advise.
Thank You

[babba]

These are the rest of the errors.

[NinjaTrader_Matthew]

Hello,

Please shut down NinjaTrader and go to Documents\NinjaTrader 7\bin\custom\Indicator and check to see if you have the @StdDev.cs file

If it exists, please delete it and proceed. If it does not exist, you may proceed with below

Download the attached @StdDv.cs file and save it in the location mentioned above.

Once you have this file saved in this directory, please restart NinjaTrader and recompile your script.

[babba]

Thanks, it worked.