ERROR: LoadError: LoadError: UndefVarError: @defVar not defined

[zap7]

I'm getting the following error. Please advise.

ERROR: LoadError: LoadError: UndefVarError: @defVar not defined Stacktrace: [1] top-level scope [2] include at ./boot.jl:326 [inlined] [3] include_relative(::Module, ::String) at ./loading.jl:1038 [4] include(::Module, ::String) at ./sysimg.jl:29 [5] include(::String) at ./client.jl:403 [6] top-level scope at none:0 in expression starting at /Users/johnsmith/Downloads/Daily-Fantasy-Baseball-Contests-in-DraftKings-master/baseball_formulations.jl:59 in expression starting at /Users/johnsmith/Downloads/Daily-Fantasy-Baseball-Contests-in-DraftKings-master/baseball_formulations.jl:31