Hi @jiri_kral , I truly appreciate your fast response.
I had that Library space empty, so, I copied this path:
juliana_rojas30_0-1600938955867.png
Into the space you pointed out. So, now it looks like this:
juliana_rojas30_1-1600939032890.png
Then pressed "Built", but I am still getting the same error.
Note: What's written in the upper space (below Libraries (-l)) was there already.
Thanks again!