On some rare occasions, you might need to update your .NET Framework version. If you encounter the following error: "Unable to retrieve type info for NinjaTrader.NinjaScript.AddOnBase ...",
- Please visit: Download .NET Framework 4.8 (Microsoft website);
- Download from the link above;
- Close NinjaTrader;
- Run the installer from .NET Framework 4.8;
- Restart your machine;
The .NET Framework 4.8 was released on 18 of April 2019. Most updated machines since Windows 8.1 have this component already installed. Nevertheless, if you encounter this error please follow the steps above.