Error 1357 When Building an Application

Updated Sep 13, 2019

Reported In

Software

  • LabVIEW
  • LabVIEW Application Builder Module

Issue Details

I am trying to build an executable or library from my LabVIEW project but I getting Error -1357: 

With the following the error description:
Error 1357 occured at AB_Source_Vi.lvclass:Copy_SourceItem.vi -> AB_Build.lvclass:Copy_Files.vi
Possible reason(s):
LabVIEW: A LabVIEW file from that path already exists in memory, or exists within a project library already in memory.

Solution

This problem occurs when the LabVIEW project include two or more VIs that have same name and only capitalization differences. For example: 
  •  Read Username.vi
  •  Read UserName.vi
This issue was identified in LabVIEW 2013 SP1 as CAR (Corrective Action Request) #517128 and has been fixed in LabVIEW 2015.
If you are unable to update LabVIEW, as workaround, please make sure the VIs' names differ in more than capitalization.