cannot use (*immutableTree)(nil) (value of type *immutableTree) as Tree value in variable declaration: *immutableTree does not implement Tree (wrong type for method Iterator)

cannot use (*iavl.MutableTree)(nil) (value of type *"github.com/cosmos/iavl".MutableTree) as Tree value in variable declaration: *"github.com/cosmos/iavl".MutableTree does not implement Tree (missing method DeleteVersion)

assignment mismatch: 2 variables but st.tree.Iterator returns 1 value

assignment mismatch: 2 variables but st.tree.Iterator returns 1 value

assignment mismatch: 2 variables but st.tree.Hash returns 1 value

undefined: iavl.NewMutableTreeWithOpts

cannot use tree (variable of type *"github.com/cosmos/iavl".MutableTree) as Tree value in struct literal: *"github.com/cosmos/iavl".MutableTree does not implement Tree (missing method DeleteVersion)

cannot use &immutableTree{…} (value of type *immutableTree) as Tree value in struct literal: *immutableTree does not implement Tree (wrong type for method Iterator)

impossible type assertion: istore.tree.(*immutableTree)