How can I create a random Vector?

How to create a Random Vector in C++ ?
e.g. create objects at random locations.

wiki:

FVector SpawnVector;
SpawnVector.X = FMath::FRandRange(0, 100);
SpawnVector.Y = FMath::FRandRange(0, 100);
SpawnVector.Z = FMath::FRandRange(0, 100);

Also

// Random Vector with Length == 1
 FRandomStream rand;
 rand.GenerateNewSeed();
    
 FVector randVector = rand.GetUnitVector();

FMath::VRand();

when using this vector i get
error C2039: ‘RandomUnitVector’ : is not a member of ‘FVector’

Sorry. It’s FMath::VRand().