A NinjaTrader import error can come from the file, the platform, missing dependencies, old code, duplicate assemblies, licensing, or a previous failed install. The fix depends on the error message and what type of package you are installing.
Moore Tech can help with paid NinjaTrader support for bounded setup issues and NinjaScript repair when the import failure exposes broken code.
Common causes
Common NinjaTrader import and install problems include:
- The exported
.zipwas built for a different NinjaTrader version. - The package depends on files that are not included.
- An older version of the same add-on is already installed.
- NinjaTrader is blocked by compile errors in another script.
- The add-on imports but does not appear where expected.
- Licensing or machine ID setup is incomplete.
Before trying random fixes, capture the exact error text. That message usually determines whether this is a setup issue or a code repair issue.
What to try first
Start with the safe checks:
- Restart NinjaTrader.
- Confirm the file is a NinjaTrader export package, usually a
.zip. - Check the NinjaScript Editor for existing compile errors.
- Remove or update older versions only if you know the package source.
- Confirm whether the tool should appear under Indicators, Strategies, Add-Ons, or a custom menu.
Do not delete platform folders or assemblies unless you know exactly what they do. That can make the install problem harder to diagnose.
When to ask for help
Ask for help when the error mentions compile failures, missing references, duplicate types, protected assemblies, licensing, or code that used to work but stopped after an update.
Book NinjaTrader install support if the product or add-on is legitimate and you need setup help. Request code repair if the import error appears to come from broken NinjaScript.