# Error adding SymEngine ()

**URL:** <https://discourse.julialang.org/t/error-adding-symengine/5329>\
**Category:** General Usage\
**Tags:** package\
**Created:** [August 11, 2017, 9:30am UTC](https://discourse.julialang.org/t/error-adding-symengine/5329 "2017-08-11T09:30:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ivborissov](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ivborissov/32/2841_2.png) [@ivborissov](https://discourse.julialang.org/u/ivborissov)\
**Post date:** [August 11, 2017, 9:30am UTC](https://discourse.julialang.org/t/error-adding-symengine/5329/1 "2017-08-11T09:30:52Z")

</div>

I have this error on one of four windows machines:  
SymEngine failed to install

```julia
julia> Pkg.add("SymEngine")
INFO: Installing SymEngine v0.2.0
INFO: Building Conda
INFO: Building SymEngine
INFO: Attempting to Create directory C:\Julia\v0.6\SymEngine\deps\downloads
INFO: Downloading file https://github.com/symengine/symengine/releases/download/
v0.3.0/symengine-0.3.0-binaries-msvc-x86_64.tar.bz2
INFO: Done downloading file https://github.com/symengine/symengine/releases/down
load/v0.3.0/symengine-0.3.0-binaries-msvc-x86_64.tar.bz2
INFO: Attempting to Create directory C:\Julia\v0.6\SymEngine
INFO: Directory C:\Julia\v0.6\SymEngine already created

7-Zip [64] 9.20 Copyright (c) 1999-2010 Igor Pavlov 2010-11-18

Processing archive: C:\Julia\v0.6\SymEngine\deps\downloads\symengine-0.3.0-binar
ies-msvc-x86_64.tar.bz2

Extracting symengine-0.3.0-binaries-msvc-x86_64.tar

Everything is Ok

Size: 0
Compressed: 6479695
==============================[ERROR: SymEngine]==============================

LoadError: Provider BinDeps.Binaries failed to satisfy dependency libsymengine_dummy
while loading C:\Julia\v0.6\SymEngine\deps\build.jl, in expression starting on line 50

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

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

WARNING: SymEngine had build errors.

 - packages with build errors remain installed in C:\Julia\v0.6
 - build the package(s) and all dependencies with `Pkg.build("SymEngine")`
 - build a single package by running its `deps/build.jl` script

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

```

```julia
julia> BinDeps.debug("SymEngine")
INFO: Reading build script...
The package declares 1 dependencies.
 - Library "libsymengine_dummy"
    - Providers:
      - Binaries

```

So it fails to associate `libsymengine_dummy` with current lib version `C:\Julia\v0.6\SymEngine\deps\symengine-0.3.0\bin\symengine-0.3.dll`  
Has anyone encountered smth similar?

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<div class="post-metadata">

**Author:** ![tkelman](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tkelman/32/692_2.png) [@tkelman](https://discourse.julialang.org/u/tkelman)\
**Post date:** [August 12, 2017, 1:23am UTC](https://discourse.julialang.org/t/error-adding-symengine/5329/2 "2017-08-12T01:23:47Z")

</div>

Check the library in dependency walker. You may need to install msvc redistributables, or encourage the package author to use mingw-compiled binaries which shouldn’t have that requirement.

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<div class="post-metadata">

**Author:** ![ivborissov](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ivborissov/32/2841_2.png) [@ivborissov](https://discourse.julialang.org/u/ivborissov)\
**Post date:** [August 17, 2017, 1:32pm UTC](https://discourse.julialang.org/t/error-adding-symengine/5329/3 "2017-08-17T13:32:15Z")

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Thanks. I have MSVC installed, however it doesn’t help