Is it possible to use SliceZone + SlicesBlock

Hi,
I have an old prismic repository and and slice machine actived on it.
So on my project page i have <slices-block :slices="slices" /> <slice-zone type="projet" :uid="projet.uid" />

It's works bit i have this message

Prismic API references a slice_type that could not be matched by the SliceZone.
Did you register libraries path correctly?

If you did, make sure this slice_type can be matched with one of your components.

I don't know why!
Do I have to change old slices (from slices bock) to slices (slice machine)?