参数“primaryMuscles”：提供的值无效。预期的 StringNullableListFilter，提供 （String）

问：

const filteredExercises =  await prisma.exercise.findMany({
         where: {
           force: undefined,
           level: undefined,
           mechanic: undefined,
           equipment: undefined,
           primaryMuscles: [
             "Shoulders"
           ],
           ~~~~~~~~~~~~~
           category: undefined
         }
       })

参数：提供的值无效。预期的 StringNullableListFilter，提供 （String）。primaryMuscles

async function getFilteredExercises(req,res){
  const {selectedSkillLevel,selectedForce,selectedMechanic,selectedEquipment,selectedPrimaryMuscle,selectedCategory} = req.body
  const filteredExercises =  await prisma.exercise.findMany({
    where: {
      force:selectedForce,
      level:selectedSkillLevel,
      mechanic:selectedMechanic,
      equipment:selectedEquipment,
      primaryMuscles: selectedPrimaryMuscle,
      category:selectedCategory
    }
    
  })
  res.status(200).json({filteredExercises})
}

model exercise {
  id               Int           @id @unique @default(autoincrement())
  name             String        @unique
  force            String?
  level            String
  mechanic         String?
  equipment        String?
  primaryMuscles   String[]
  secondaryMuscles String[]
  instructions     String[]
  category      String
  workoutPlans     WorkoutPlan[]
}