# Internal error in runtime Julia master

**URL:** <https://discourse.julialang.org/t/internal-error-in-runtime-julia-master/12723>\
**Category:** General Usage\
**Created:** [July 29, 2018, 2:26pm UTC](https://discourse.julialang.org/t/internal-error-in-runtime-julia-master/12723 "2018-07-29T14:26:04Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ufechner7](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ufechner7/32/51363_2.png) [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Post date:** [July 29, 2018, 2:26pm UTC](https://discourse.julialang.org/t/internal-error-in-runtime-julia-master/12723/1 "2018-07-29T14:26:04Z")

</div>

I reported an error with testing JuMP (see: [test JuMP fails on 0.7 · Issue #1379 · jump-dev/JuMP.jl · GitHub](https://github.com/JuliaOpt/JuMP.jl/issues/1379) ), it shows a JuMP releated error but also shows the following error:

```julia
Internal error: encountered unexpected error in runtime:
ErrorException("type Nothing has no field args")

```

Shall I report that as issue to Julia itself?

Easy to reproduce:

```julia
test JuMP

```