# [✓] Turn on dynamic state selection?

GROUPS:
 In my build log I keep getting this error: Notification: Forcing static selection of states. If this leads to problems during simulation turn on dynamic state selection. Is this a setting in SystemModeler, or do I just need to set stateSelect correctly?While I'm posting, the more critical error that I'm getting is Internal error: DeriveMC.differentiateExpTime: error for expression CALL I added stateSelect = StateSelect.avoid to a couple variables and that helped some, but when "myFunction" becomes less linear the build fails.Thanks, Eric