The LabVIEW compiler can run out of memory when it tries to compile large or complex VIs. Choose one of the following solutions to correct this problem.

Possible Cause Solution
The complexity of a VI falls below the threshold at which the compiler begins limiting compiler optimizations to preserve memory and facilitate editor responsiveness. Lower the complexity threshold to prioritize editor responsiveness over execution speed for the relevant VIs.
A VI is too complex to compile even though the compiler is limiting optimizations. (Recommended) Reduce the complexity of the VI by dividing the VI into subVIs.