LabVIEW VI Cannot Open with Error: Failed to Load Dynamic Library

Updated Jun 15, 2018

Reported In


  • LabVIEW 2016 Full
  • LabVIEW Professional
  • LabVIEW Base
  • LabVIEW Full

Issue Details

When trying to open a VI, LabVIEW gives an error with the following text:
Failed to Load Dynamic Library Because of Missing External Symbols or Dependencies, or Because of an Invalid File Format

​LabVIEW was unable to save this VI before the error started occurring.


LabVIEW gives this error when a VI lacks the data necessary to open. It may have become corrupted and unrecoverable.
  • Try opening a backup copy of the VI
  • Try to open the file in other versions of LabVIEW or on another computer.
To prevent or mitigate this issue:
  • Make frequent backup copies of the VI
  • Save VIs in a local location instead of on a network
  • Uninstall and Reinstall LabVIEW

Additional Information

This can also occur if conflicting changes are made to a body of code. For example, if 2 developers make independent edits to the same code and do not merge the changes, the conflicting changes can cause a VI to become corrupt.
To prevent conflicting changes, make sure each developer only submits edits on the latest version of code. For more information, take a look at our White Paper on Software Configuration Management and LabVIEW.