Can't get CSV package working in 1.6.2

[compleat]

This seems to be a new error and is active on another thread:

CSV.jl fails precompling, TypeError: in Type{...} expression, expected UnionAll, got Type{Parsers.Options}

Thank for the explanation. I kinda suspected what you mentioned from the line where the issue occurs and by looking through the master branch. But, I did not know IJulia can behave that way, so I ended up putting up this question. Good to know.