# Exception\_access\_violation

**URL:** <https://discourse.julialang.org/t/exception-access-violation/21072>\
**Category:** General Usage\
**Tags:** error\
**Created:** [February 22, 2019, 9:48am UTC](https://discourse.julialang.org/t/exception-access-violation/21072 "2019-02-22T09:48:48Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![davidzentlermunro](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/davidzentlermunro/32/5967_2.png) [@davidzentlermunro](https://discourse.julialang.org/u/davidzentlermunro)\
**Post date:** [February 22, 2019, 9:48am UTC](https://discourse.julialang.org/t/exception-access-violation/21072/1 "2019-02-22T09:48:48Z")

</div>

I’m getting the error below - it seems to reference different points in my code each time I run it. I can’t easily create a MWE. Any ideas?

```julia
Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
Exception: EXCEPTION_ACCESS_VIOLATION at 0x43a2995e9 -- mtcache_hash_lookup at /home/Administrator/buildbot/worker/package_win64/build/src\typemap.c:247 [inlined]
jl_typemap_level_assoc_exact at /home/Administrator/buildbot/worker/package_win64/build/src\typemap.c:833
in expression starting at C:\Users\uctpdtz\OneDrive\Model\ModelCapSkillComp_fcalib_fixedr_update.jl:714
jl_typemap_level_assoc_exact at /home/Administrator/buildbot/worker/package_win64/build/src\typemap.c:832
jl_typemap_assoc_exact at /home/Administrator/buildbot/worker/package_win64/build/src\julia_internal.h:927 [inlined]
jl_lookup_generic_ at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2169 [inlined]
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2215
bellman_operator at C:\Users\uctpdtz\OneDrive\Model\ModelCapSkillComp_fcalib_fixedr_update.jl:126
findividual_assets! at C:\Users\uctpdtz\OneDrive\Model\ModelCapSkillComp_fcalib_fixedr_update.jl:154
f_simulate_moments_assets at C:\Users\uctpdtz\OneDrive\Model\ModelCapSkillComp_fcalib_fixedr_update.jl:526
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1864
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2219
do_call at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:323
eval_value at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:411
eval_body at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:625
jl_interpret_toplevel_thunk_callback at /home/Administrator/buildbot/worker/package_win64/build/src\interpreter.c:885
unknown function (ip: FFFFFFFFFFFFFFFE)
unknown function (ip: 000000000859878F)
unknown function (ip: 0000000000000001)
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:764
jl_eval_module_expr at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:179
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:614
jl_parse_eval_all at /home/Administrator/buildbot/worker/package_win64/build/src\ast.c:883
include_string at .\loading.jl:1008
#124 at C:\Users\uctpdtz\.julia\packages\Atom\UtmXq\src\eval.jl:125
withpath at C:\Users\uctpdtz\.julia\packages\CodeTools\xGemk\src\utils.jl:30
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1864
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2219 [inlined]
jl_apply at /home/Administrator/buildbot/worker/package_win64/build/src\julia.h:1571 [inlined]
jl_invoke at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:56
withpath at C:\Users\uctpdtz\.julia\packages\Atom\UtmXq\src\eval.jl:46 [inlined]
#123 at C:\Users\uctpdtz\.julia\packages\Atom\UtmXq\src\eval.jl:122 [inlined]
with_logstate at .\logging.jl:395
with_logger at .\logging.jl:491 [inlined]
#122 at C:\Users\uctpdtz\.julia\packages\Atom\UtmXq\src\eval.jl:121 [inlined]
Julia has exited. Press Enter to start a new session.

hideprompt at C:\Users\uctpdtz\.julia\packages\Atom\UtmXq\src\repl.jl:87
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1864
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2219
macro expansion at C:\Users\uctpdtz\.julia\packages\Atom\UtmXq\src\eval.jl:120 [inlined]
macro expansion at C:\Users\uctpdtz\.julia\packages\Media\ItEPc\src\dynamic.jl:24 [inlined]
#121 at C:\Users\uctpdtz\.julia\packages\Atom\UtmXq\src\eval.jl:109
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1864
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2219
handlemsg at C:\Users\uctpdtz\.julia\packages\Atom\UtmXq\src\comm.jl:164
unknown function (ip: 000000000D652C63)
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2219
jl_apply at /home/Administrator/buildbot/worker/package_win64/build/src\julia.h:1571 [inlined]
jl_f__apply at /home/Administrator/buildbot/worker/package_win64/build/src\builtins.c:556
#19 at .\task.jl:259
unknown function (ip: 000000000D64F80A)
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2219
jl_apply at /home/Administrator/buildbot/worker/package_win64/build/src\julia.h:1571 [inlined]
start_task at /home/Administrator/buildbot/worker/package_win64/build/src\task.c:572
Allocations: 642939895 (Pool: 642926158; Big: 13737); GC: 598

```

---

<div class="post-metadata">

**Author:** ![StefanKarpinski](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stefankarpinski/32/24_2.png) [@StefanKarpinski](https://discourse.julialang.org/u/StefanKarpinski)\
**Post date:** [February 22, 2019, 4:15pm UTC](https://discourse.julialang.org/t/exception-access-violation/21072/2 "2019-02-22T16:15:46Z")

</div>

Hard to figure out what’s going on without any code that’s causing this.