# Problems build CodecZlib

**URL:** <https://discourse.julialang.org/t/problems-build-codeczlib/53332>\
**Category:** General Usage\
**Created:** [January 14, 2021, 12:45pm UTC](https://discourse.julialang.org/t/problems-build-codeczlib/53332 "2021-01-14T12:45:19Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![AlexanderChen](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alexanderchen/32/22007_2.png) [@AlexanderChen](https://discourse.julialang.org/u/AlexanderChen)\
**Post date:** [January 14, 2021, 12:45pm UTC](https://discourse.julialang.org/t/problems-build-codeczlib/53332/1 "2021-01-14T12:45:19Z")

</div>

Hi,

want to do some tests with MetaGraphs but it fails. error suggests to build CodecZlib. But get this error:

```julia
(v1.0) pkg> build CodecZlib
  Building CodecZlib → `C:\Users\achen\.julia\packages\CodecZlib\5t9zO\deps\build.log`
┌ Error: Error building `CodecZlib`:

```

My Powershell version is:

```julia
PS C:\Users\achen> $PSVersionTable

Name Value
---- -----
PSVersion 5.1.19041.610
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.19041.610
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1

```

I saw post about Power Shell 3 but I don’t think that is the issue here. any ideas?

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<div class="post-metadata">

**Author:** ![pixel27](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pixel27/32/8902_2.png) [@pixel27](https://discourse.julialang.org/u/pixel27)\
**Post date:** [January 14, 2021, 5:11pm UTC](https://discourse.julialang.org/t/problems-build-codeczlib/53332/2 "2021-01-14T17:11:42Z")

</div>

Is `C:\Users\achen\.julia\packages\CodecZlib\5t9zO\deps\build.log` large? Could you post the contents?

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<div class="post-metadata">

**Author:** ![AlexanderChen](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alexanderchen/32/22007_2.png) [@AlexanderChen](https://discourse.julialang.org/u/AlexanderChen)\
**Post date:** [January 14, 2021, 5:50pm UTC](https://discourse.julialang.org/t/problems-build-codeczlib/53332/3 "2021-01-14T17:50:19Z")

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Hi @pixel27,

I tried it again (removed the build to see if that helped). Error Remains but is now less criptic:

```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 0x7ffa13bf3b74 -- 
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 0x7ffa13bf3b74 -- RtlExtendMemoryZone at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
in expression starting at C:\Users\achen\.julia\packages\CodecZlib\5t9zO\deps\build.jl:1
RtlExtendMemoryZone at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
RtlAllocateHeap at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
RtlAllocateHeap at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
malloc at C:\WINDOWS\System32\msvcrt.dll (unknown line)
Znwy at C:\Julia-1.0.5\bin\libstdc++-6.dll (unknown line)

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 0x7ffa13c0a8bb -- RtlAllocateHeap at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
in expression starting at C:\Users\achen\.julia\packages\CodecZlib\5t9zO\deps\build.jl:1
RtlAllocateHeap at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
RtlAllocateHeap at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
RtlFormatMessageEx at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
RtlFormatMessageEx at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
RtlAllocateHeap at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
RtlAllocateHeap at C:\WINDOWS\SYSTEM32\ntdll.dll (unknown line)
malloc at C:\WINDOWS\System32\msvcrt.dll (unknown line)
Znwy at C:\Julia-1.0.5\bin\libstdc++-6.dll (unknown line)

```

Does this help? Could you tell me want you think it is?

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<div class="post-metadata">

**Author:** ![giordano](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/giordano/32/2166_2.png) [@giordano](https://discourse.julialang.org/u/giordano)\
**Post date:** [January 14, 2021, 6:29pm UTC](https://discourse.julialang.org/t/problems-build-codeczlib/53332/4 "2021-01-14T18:29:19Z")

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Any chance of upgrading to the [latest stable version of Julia](https://julialang.org/downloads/#current_stable_release)?

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<div class="post-metadata">

**Author:** ![AlexanderChen](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/alexanderchen/32/22007_2.png) [@AlexanderChen](https://discourse.julialang.org/u/AlexanderChen)\
**Post date:** [January 14, 2021, 7:46pm UTC](https://discourse.julialang.org/t/problems-build-codeczlib/53332/5 "2021-01-14T19:46:50Z")

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Yes, That fixed it, thanks!