[conflicted] `x` found in 3 packages.
Either pick the one you want with `::` 
* a::x
* b::x
* c::x
Or declare a preference with `conflict_prefer()`
* conflict_prefer("x", "a")
* conflict_prefer("x", "b")
* conflict_prefer("x", "c")

[conflicted] `if` found in 3 packages.
Either pick the one you want with `::` 
* a::`if`
* b::`if`
* c::`if`
Or declare a preference with `conflict_prefer()`
* conflict_prefer("if", "a")
* conflict_prefer("if", "b")
* conflict_prefer("if", "c")

[conflicted] `%in%` found in 3 packages.
Declare a preference with `conflict_prefer()`:
* conflict_prefer("%in%", "a")
* conflict_prefer("%in%", "b")
* conflict_prefer("%in%", "c")
