"Unable to Load Configuration" Error for Periodic I/O Server in Distributed System Manager

Issue Details

When using my Periodic I/O Servers, it shows the following on Distributed System Manager: Error code 1125 and error message: Unable to load configuration. This happens after I migrated my LabVIEW project from 2019 to 2023.

The error looks like this:

Solution

Error 1125 indicates that the file version is later that current LabVIEW version. Follow the steps below:

• • Navigate to C:\Program Files (x86)\National Instruments\Shared\DSC\Custom VI Periodic Server.
  • Delete the files in this directory that are related to the server with the issue.
  • Rebuild the Periodic I/O server from your LabVIEW project. 

You may them get error 1003 with error Message: "The VI is not executable. This error may occur because the VI is either broken or contains a subVI that LabVIEW cannot locate. Select File>>Open to open the VI and verify that you can run it."

Steps to resolve:

1. Remove Server from Project:
   • Remove the Periodic I/O server from the project.
2. Disconnect Base VI:
   • Disconnect the base.vi from the library. In the project tree, move it outside the library.
3. Rebuild Server:
   • Rebuild the server from the disconnected base.vi.

Alternative Fix:

• • Verify that the VIs under C:\Program Files (x86)\National Instruments\Shared\DSC\Custom VI Periodic Server\25.0 related to your server are all able to run (i.e., they do not have a broken arrow).

Additional Information

• The issue arises due to version incompatibility between the LabVIEW project files and the LabVIEW version being used.
• Error 1003 indicates that the VI is not executable, which can be due to broken VIs or missing subVIs.