Unexpected Error When Launching Package Builder

Updated May 21, 2025

Reported In

Software

  • NI Package Builder

Issue Details

Most of the times, NI Package Builder throws the following exception when I launch for the first time. Upon closing and trying again, it opens fine. 

 

Unexpected Error

Package Builder encountered an unexpected error. The application will now close.

Error message: An exception was thrown while activating

NationalInstruments.PackageBuilder.Editor.Views.MainWindow

 

 

 

 

Solution

This a know issue reported on version 2023 Q4 and fixed on version 2025 Q2. Please update to NI Package Builder 2025 Q2 or later.