Error -603 When Building a Real-Time Application (RTEXE) in LabVIEW

Issue Details

I am trying to build a Real-Time executable for my Real-Time (RT) controller. My project was developed on a previous 32-bit LabVIEW version and now I am trying to migrate my program to LabVIEW 2023 Q1 (64-bit). However, whenever I try to build the RTEXE, I get the following error, even though my code works just fine when running it from the development environment:
 

Error -603 occurred at Read Registry Value STR.vi

Possible reason(s):

LabVIEW:(Hex 0xFFFFFDA5) Specified key or value does not exist.
 

The error is shown in the following dialog box:
 

Solution

This error seems to be caused when trying to migrate a 32-bit application to a 64-bit environment. However, there might be other reasons for this error to occur. Please find below a list of possible troubleshooting steps you can try to implement, to fix the problem.

• Create a new Build Specification on your LabVIEW project, since the original one might be corrupted.
• You can solve this error by building the executable on a 32-bit version of LabVIEW. The reason for this is that there might still be missing compatibilities when using a 64-bit even if the LabVIEW Real-Time module already supports that bitness.
• In case your build specification has the Create a component definition file (.cdf) and specify dependencies option enabled in the Component Definition category, please disable this option, as shown in the image below, and retry to build your application.