# Problems in installing and using some packages (Failed to precompile)

**URL:** <https://discourse.julialang.org/t/problems-in-installing-and-using-some-packages-failed-to-precompile/12949>\
**Category:** New to Julia\
**Tags:** question\
**Created:** [August 6, 2018, 5:03pm UTC](https://discourse.julialang.org/t/problems-in-installing-and-using-some-packages-failed-to-precompile/12949 "2018-08-06T17:03:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Assa\_Cohen](https://avatars.discourse-cdn.com/v4/letter/a/cdc98d/32.png) [@Assa\_Cohen](https://discourse.julialang.org/u/Assa_Cohen)\
**Post date:** [August 6, 2018, 5:03pm UTC](https://discourse.julialang.org/t/problems-in-installing-and-using-some-packages-failed-to-precompile/12949/1 "2018-08-06T17:03:17Z")

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Hi!  
I have been having trouble using quite a few of the packages I have installed, including: Gadfly, Blink and Cairo. In all cases, I received a message stating that Julia had failed to precompile the package. In a similar vain, Julia had failed to precompile PlotlyJS when I tried setting it as a backend. In some of the cases I get an error message stating that one of the packages is not properly installed, while suggesting the command required to install it. However, following the instructions yields no success…

I am using Julia 6 on a mac. I am running it using Jupiter notebook.

Example of error messages that I have been getting:  
Trying to use Cairo I am getting:

# =============================================================== INFO: Precompiling module Cairo. ERROR: LoadError: Cairo not properly installed. Please run Pkg.build(“Cairo”) Stacktrace: [1] error(::String, ::String, ::Vararg{String,N} where N) at ./error.jl:30 [2] include\_from\_node1(::String) at ./loading.jl:576 [3] include(::String) at ./sysimg.jl:14 [4] anonymous at ./:2 while loading /Users/assa/.julia/v0.6/Cairo/src/Cairo.jl, in expression starting on line 9 Failed to precompile Cairo to /Users/assa/.julia/lib/v0.6/Cairo.ji.

As I run Pkg.build(“Cairo”) I get:

===============================================================  
INFO: Building Homebrew  
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun  
==============================[ERROR: Homebrew]===============================

LoadError: InitError: failed process: Process(`git --version`, ProcessExited(1)) [1]  
during initialization of module Homebrew  
while loading /Users/assa/.julia/v0.6/Homebrew/deps/build.jl, in expression starting on line 2

================================================================================  
INFO: Building Cairo  
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun  
================================[ERROR: Cairo]================================

LoadError: InitError: failed process: Process(`git --version`, ProcessExited(1)) [1]  
during initialization of module Homebrew  
while loading /Users/assa/.julia/v0.6/Cairo/deps/build.jl, in expression starting on line 42

================================================================================

================================[BUILD ERRORS]================================

WARNING: Cairo and Homebrew had build errors.

- packages with build errors remain installed in /Users/assa/.julia/v0.6
- build the package(s) and all dependencies with `Pkg.build("Cairo", "Homebrew")`
- build a single package by running its `deps/build.jl` script  
================================================================================

Because I keep encountering similar mistakes with a few different packages I tend to think all is a part of a more general problem in the I am using (or the way I have installed) Julia. I should mention that other packages (e.g: Distributions, DataFrames, Plots…) are working ok. Would appreciate any help.

Many thanks!  
Assa

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<div class="post-metadata">

**Author:** ![Assa\_Cohen](https://avatars.discourse-cdn.com/v4/letter/a/cdc98d/32.png) [@Assa\_Cohen](https://discourse.julialang.org/u/Assa_Cohen)\
**Post date:** [August 10, 2018, 9:48pm UTC](https://discourse.julialang.org/t/problems-in-installing-and-using-some-packages-failed-to-precompile/12949/2 "2018-08-10T21:48:36Z")

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After installing Julia-Pro the problem was solved.