Source Control Error 1025 When Opening LabVIEW

Updated May 13, 2026

Reported In

Software

  • LabVIEW

Issue Details

I have installed and activated LabVIEW on my computer. When I launch the program, an error 1025 from source control appears, after which the application crashes, and I am unable to do anything. How can I fix this?

Solution

The Source Control error 1025 indicates an invalid application reference, which usually occurs because of corrupted or missing source control settings/files.
To resolve this issue, try repairing the LabVIEW from the NI Package Manager using the following article: Repair Software in NI Package Manager (NIPM). If unsuccessful, perform a complete NI software uninstall from the NI Package Manager, manually remove all remaining files, and clean the registry. Once done, reinstall LabVIEW. 
Prefer an offline installer since a bad network connection can cause corrupted files and unexpected behaviors