Pkg.build Conda doesn't work

Hello everyone,

Since quite a time I am trying to handle this problem, but still I am puzzled.
I use Julia 1.0.0, Conda is added to the packages
But when I execute Pkg.build("Conda") , I get

ERROR: LoadError: ArgumentError: isdefined: too few arguments (expected 2)
Stacktrace:
 [1] top-level scope at none:0
 [2] include at .\boot.jl:317 [inlined]
 [3] include_relative(::Module, ::String) at .\loading.jl:1038
 [4] include(::Module, ::String) at .\sysimg.jl:29
 [5] include(::String) at .\client.jl:388
 [6] top-level scope at none:0
in expression starting at C:\Users\benej\.julia\packages\Conda\a196m\deps\build.jl:7

Can anybody help me with this?

Regards,
Ben

Duplicate of Cannot Pkg.build Conda - #2 by Moses ?