On figure 1.19 it wants us to check “Horizontally in Container” and press add constraint but the add constraint is not clickable here.
There is no add 1 constraint button. Please help here!
I can only put one image so that is what my computer shows.
I had same problem with you. And my resolution may be helpful.
Maybe you did as wrong as me. You should only select the top label but not the whole “View”.