# Download fail moku data files

**URL:** <https://forum.liquidinstruments.com/t/download-fail-moku-data-files/868>\
**Category:** Moku:Go\
**Created:** [December 19, 2023, 2:28am UTC](https://forum.liquidinstruments.com/t/download-fail-moku-data-files/868 "2023-12-19T02:28:24Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![minodori](https://avatars.discourse-cdn.com/v4/letter/m/3bc359/32.png) [@minodori](https://forum.liquidinstruments.com/u/minodori)\
**Post date:** [December 19, 2023, 2:28am UTC](https://forum.liquidinstruments.com/t/download-fail-moku-data-files/868/1 "2023-12-19T02:28:24Z")

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Hi,

I have got below message when i run ‘moku download’.

PS D:\PythonProject\Moku\> moku download  
Moku Client Version 3.1.1  
ERROR: Unexpected error.  
HTTPSConnectionPool(host=‘[updates.liquidinstruments.com](http://updates.liquidinstruments.com)’, port=443): Max retries exceeded with url: /static/mokudata-587.md5 (Caused by SSLError(SSLCertVerificationError(1, ‘[SSL: CERTIFICATE\_VERIFY\_FAILED] certificate verify failed: EE certificate key too weak (\_ssl.c:1000)’)))

Perhaps the company network restricts https access. Can I download moku data files directly?

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**Author:** ![hanklong](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.liquidinstruments.com/hanklong/32/288_2.png) [@hanklong](https://forum.liquidinstruments.com/u/hanklong)\
**Post date:** [December 19, 2023, 9:46pm UTC](https://forum.liquidinstruments.com/t/download-fail-moku-data-files/868/2 "2023-12-19T21:46:06Z")

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Hello,

Would you mind giving this a try?

1. Go this this link, your web browser will download the bitstreams:

[https://updates.liquidinstruments.com/static/mokudata-587.tar.gz](https://updates.liquidinstruments.com/static/mokudata-587.tar.gz)

1. Open your Command Prompt Window and enter the following command:

**where moku**

The returned results should be a path looks like:

**C:\Users\heyan\AppData\Local\Programs\Python\Python312\Scripts\moku.exe**

1. Then, remove **Scripts\moku.exe** in the path and append **Lib\site-packages\moku\data**

2. Move the downloaded bitstreams file to the complete path:

**C:\Users\heyan\AppData\Local\Programs\Python\Python312\Lib\site-packages\moku\data**

Now, the bitstreams is downloaded and moved to the correct folder.

Thank you very much!

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<div class="post-metadata">

**Author:** ![minodori](https://avatars.discourse-cdn.com/v4/letter/m/3bc359/32.png) [@minodori](https://forum.liquidinstruments.com/u/minodori)\
**Post date:** [December 20, 2023, 8:22am UTC](https://forum.liquidinstruments.com/t/download-fail-moku-data-files/868/3 "2023-12-20T08:22:24Z")

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Thank you for your promt reply.  
Let me try to install moku data fiels according to your instructions.

By the way, I met the same problem in matlab to download moku data file as below.

> > moku\_download(587)  
> > sun.net.www.protocol.https.DelegateHttpsURLConnection:[https://updates.liquidinstruments.com/static/mokudata-587.md5](https://updates.liquidinstruments.com/static/mokudata-587.md5)

Response stream is undefined  
below is a Java Error dump (truncated):  
다음 사용 중 오류가 발생함: urlread2  
Java exception occurred:  
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed:  
sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to  
requested target

오류 발생: Moku.get\_remote\_checksum (53번 라인)  
[output, extras] = urlread2(chksum\_url, ‘GET’, ‘’);

오류 발생: moku\_download (7번 라인)  
if strcmp(Moku.get\_remote\_checksum(fw), Moku.get\_local\_checksum(fw))

Best Regards.

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<div class="post-metadata">

**Author:** ![hanklong](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.liquidinstruments.com/hanklong/32/288_2.png) [@hanklong](https://forum.liquidinstruments.com/u/hanklong)\
**Post date:** [December 21, 2023, 2:25am UTC](https://forum.liquidinstruments.com/t/download-fail-moku-data-files/868/4 "2023-12-21T02:25:45Z")

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Hi,

We have some customers have seen this issue before because the http access to this link is blocked.

The bitstreams can be configured in the following way:

1. Download the bitstreams for firmware 587 using this link:

[https://updates.liquidinstruments.com/static/mokudata-587.tar.gz](https://updates.liquidinstruments.com/static/mokudata-587.tar.gz)

1. Unzip the bitstreams file (.tar.gz file) twice until you see three folders:

**moku20** , **mokugo** , and **mokupro**

1. Then copy these three folders to the following path:

**C:\Users\<username\>\AppData\Roaming\Mathworks\MATLAB Add-Ons\Toolboxes\Moku-MATLAB\data**

After that, moku-MATLAB should be working. Thank you very much for your time and patience!

Best regards,  
Hank