Revision history [back]

I believe this is because the method peoplePerFloorArea returns an optional double (see here). Check out the chapter "Optionals and .get" from the Measure Writing Guide.

I believe this is because the method peoplePerFloorArea returns an optional double (see here). Check out the chapter section "Optionals and .get" from the Measure Writing Guide.

I believe this is because the The method peoplePerFloorAreapeoplePerSpaceFloorArea returns an optional double (see herePeopleDefinition Class Reference). Check out the section "Optionals and .get" from the Measure Writing Guide, and @David Goldwasser's answer.

The method peoplePerSpaceFloorAreapeopleperSpaceFloorArea returns an optional double (see PeopleDefinition Class Reference). Check out the section "Optionals and .get" from the Measure Writing Guide, and @David Goldwasser's answer.

*Edit to correct method name