Solution
Bug in NI LabVIEW Toolkits 2026 Q1 are causing compatibility issue with LabVIEW 2025 Q3.
To resolve this issue, there are two approaches:
- Install NI LabVIEW Toolkits 2026 Q3. The bug has been fixed and will now compatible with LabVIEW 2025 Q3.
- Manually update lvaddoninfo.json:
- Launch text editor software such as Notepad as an administrator.
- Navigate to C:\Program Files\NI\LVAddons
- Open the folder of the LabVIEW toolkit(s) experiencing the issue. Below is the acronym of each of the LabVIEW toolkits:
| LabVIEW Toolkit | Acronym |
| Advanced Signal Processing Toolkit | aspt |
| Database Connectivity Toolkit | dct |
| Desktop Execution Trace Toolkit | dett |
| DataFinder Connectivity VIs | dfc |
| Digital Filter Design Toolkit | dfdt |
| Report Generation Toolkit | rgt |
| Unit Test Framework Toolkit | utf |
| VI Analyzer Toolkit | viawin |
- Right-click lvaddoninfo.json within the toolkit's folder and select Properties.
- Uncheck Read-only attributes, then select Apply and OK

- Open the lvaddoninfo.json using the text editor with administrator privileges
- Change the MinimumSupportedLVVersion value to 25.0 as illustrated below and save.

- Restart LabVIEW