ERROR: Error building `P4est_wrapper`: 
ERROR: LoadError: UndefVarError: artifact_dir not defined
Stacktrace:
 [1] getproperty(x::Module, f::Symbol)
   @ Base ./Base.jl:31
 [2] top-level scope
   @ ~/.julia/packages/P4est_wrapper/zSIB0/deps/build.jl:9
 [3] include(fname::String)
   @ Base.MainInclude ./client.jl:476
 [4] top-level scope
   @ none:5
in expression starting at /home/user1/.julia/packages/P4est_wrapper/zSIB0/deps/build.jl:4