# Dreaded PyCall build error

**URL:** <https://discourse.julialang.org/t/dreaded-pycall-build-error/56761>\
**Category:** General Usage\
**Created:** [March 8, 2021, 7:53pm UTC](https://discourse.julialang.org/t/dreaded-pycall-build-error/56761 "2021-03-08T19:53:24Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![rafael.guerra](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/rafael.guerra/32/216610_2.png) [@rafael.guerra](https://discourse.julialang.org/u/rafael.guerra)\
**Post date:** [April 11, 2021, 7:23am UTC](https://discourse.julialang.org/t/dreaded-pycall-build-error/56761/3 "2021-04-11T07:23:02Z")

</div>

Similar (persistent) problem here on Win10, Julia 1.6.0:

```julia
julia> Pkg.build("PyCall")
    Building Conda ─→ `C:\Users\jrafa\.julia\scratchspaces\44cfe95a-1eb2-52ea-b672-e2afdf69b78f\6231e40619c15148bcb80aa19d731e629877d762\build.log`
    Building PyCall → `C:\Users\jrafa\.julia\scratchspaces\44cfe95a-1eb2-52ea-b672-e2afdf69b78f\169bb8ea6b1b143c5cf57df6d34d022a7b60c6db\build.log`
ERROR: Error building `PyCall`:
Collecting package metadata (current_repodata.json): ...working... failed

CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://repo.anaconda.com/pkgs/main/win-64/current_repodata.json>
Elapsed: -

```

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_[View the full topic](https://discourse.julialang.org/t/dreaded-pycall-build-error/56761)._