Compile error

Hi Everyone,

Learning the ropes of SoMachine V4.2 (coming from Arduino and Ucontrollers), I am using a Sequiental step style program and I am receiving 4 error messages. I'm trying to understand why it won't compile.

1. POU for implicit check is missing. It is recommend to add the POU.
2. C0032: Cannot convert type "IeSFc.SFCStepType(iesfc,3.4.2.0 (systen))'to type BOOL
3. "Same error for a different ladder (the output of ladder rung hits the transition step, the transition is a bool which kicks off the beginning of another ladder rung).
4. C0032: Cannot convert type BOOL to "IeSFc.SFCStepType(iesfc,3.4.2.0 (systen))
   

Are these two different "data" types?

Thanks in advance!