Error when importing ConfParser

[xue35]

=== Symptom
julia> import Pkg; Pkg.add("ConfParser")
Resolving package versions...
ERROR: Unsatisfiable requirements detected for package ConfParser [88353bc9]:
ConfParser [88353bc9] log:
├─possible versions are: 0.0.1-0.0.9 or uninstalled
├─restricted to versions * by an explicit requirement, leaving only versions 0.0.1-0.0.9
└─restricted by julia compatibility requirements to versions: uninstalled — no versions left

=== Environment info
julia> versioninfo()
Julia Version 1.1.0
Commit 80516ca202 (2019-01-21 21:24 UTC)
Platform Info:
OS: macOS (x86_64-apple-darwin14.5.0)
CPU: Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz
WORD_SIZE: 64
LIBM: libopenlibm
LLVM: libLLVM-6.0.1 (ORCJIT, broadwell)
Environment:
JULIA_HOME = /opt/julia