How to build functions from symbolic expressions with symbolics.jl

General Usage
,
2

I believe you see something like

The applicable method may be too new: running in world age 32545, while current world is 32546.

You could try something like

using Symbolics
function test()
    @variables x
    p=(1+x)^2
    f_expr=build_function(p,x)
    f=eval(f_expr)
    Base.@invokelatest f(1) # get 4
end
test()