NoClassDefFoundError: java/time/LocalDateTime


I have developed an URCap than runs correctly with URSim and E-Series robots that I have tested.

But today I have tested in a CB-Series robot with URSoftware (may 26 2021) and this error has appeared: NoClassDefFoundError: java/time/LocalDateTime

I have this import:
import java.time.LocalDateTime;

I haven’t added nothing in pom.xml file regarding to plugins, dependencies… I don’t know if I need to add something here.

Thank you for your help!