Replikanto stops loading after a NinjaTrader upgrade (version mismatch)

Symptom

After a NinjaTrader 8 upgrade, Replikanto no longer loads or is not recognized by NinjaTrader. You may see a pop-up saying the add-on cannot be found, or Replikanto simply does not appear in the Control Center.

Cause

Each Replikanto release targets a specific range of NinjaTrader 8 builds. When NinjaTrader updates to a new build, the installed Replikanto version may fall outside the supported range, causing NinjaTrader to refuse to load it.

Fix

Step 1 — Check your NinjaTrader version

1. In the NinjaTrader Control Center, go to Help > About.
2. Note the exact version number (for example: 8.1.7.1).

Step 2 — Download the matching Replikanto build

1. Go to your FlowBots downloads page: https://flowbots.ninja/my-profile/downloads/
2. Under Replikanto, find the download that matches your NinjaTrader version range. Each download is labeled with its compatibility range, for example:
   • NT >= 8.1.7.0
   • NT >= 8.1.6.0 and <= 8.1.6.3
   • NT <= 8.1.5.2
3. Download the zip file for the range that includes your NT version.

Step 3 — Install the correct build

1. In NinjaTrader, go to Tools > Import > NinjaScript Add-On…
2. Select the zip file you just downloaded.
3. Allow NinjaTrader to overwrite the existing installation.
4. Restart NinjaTrader when prompted.

If the problem persists — OneDrive conflict

If your Documents folder is synced with Microsoft OneDrive, OneDrive can silently restore the old Replikanto DLLs after the import, reverting your installation.

1. Pause OneDrive sync, or exclude the NinjaTrader 8 folder from sync.
2. Repeat Step 3 above.
3. Restart NinjaTrader.

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