# Issue with KneadData database download

**URL:** <https://forum.biobakery.org/t/issue-with-kneaddata-database-download/4254>\
**Category:** KneadData\
**Created:** [October 17, 2022, 6:10am UTC](https://forum.biobakery.org/t/issue-with-kneaddata-database-download/4254 "2022-10-17T06:10:54Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![iazeez](https://avatars.discourse-cdn.com/v4/letter/i/87869e/32.png) [@iazeez](https://forum.biobakery.org/u/iazeez)\
**Post date:** [October 17, 2022, 6:10am UTC](https://forum.biobakery.org/t/issue-with-kneaddata-database-download/4254/1 "2022-10-17T06:10:54Z")

</div>

Hi,

I’m having some issues downloading and installing the KneadData database required to run it. I have successfully install KneadData itself, however I keep getting an error when using the provided commands to download it to a.

I used the following command to place it in a directory call “kneaddata\_database”;

kneaddata\_database --download human\_genome bowtie2 kneaddata\_database/

As a result the output I got was;

Download URL: [http://huttenhower.sph.harvard.edu/kneadData\_databases/Homo\_sapiens\_hg37\_and\_human\_contamination\_Bowtie2\_v0.1.tar.gz](http://huttenhower.sph.harvard.edu/kneadData_databases/Homo_sapiens_hg37_and_human_contamination_Bowtie2_v0.1.tar.gz)  
Downloading file of size: 3.48 GB

CRITICAL ERROR: Unable to download and extract from URL: [http://huttenhower.sph.harvard.edu/kneadData\_databases/Homo\_sapiens\_hg37\_and\_human\_contamination\_Bowtie2\_v0.1.tar.gz](http://huttenhower.sph.harvard.edu/kneadData_databases/Homo_sapiens_hg37_and_human_contamination_Bowtie2_v0.1.tar.gz)

Something to note is that when I executed the command, it did begin to attempt the download, however the speed of the download was unusually slow and stilted, and it eventually halted and gave me the error. I even went to the URL and tried to download it myself into my laptop, but for some reason, it would not progress with the download.

On the other hand, I was easily able to download and install the database required for MetaPhlAn, so I don’t think there is anything wrong on this end.

Any help would be much appreciated.

Kind regards,  
Imadh

---

<div class="post-metadata">

**Author:** ![Sudhan\_Pachhain](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.biobakery.org/sudhan_pachhain/32/1746_2.png) [@Sudhan\_Pachhain](https://forum.biobakery.org/u/Sudhan_Pachhain)\
**Post date:** [November 29, 2022, 8:15pm UTC](https://forum.biobakery.org/t/issue-with-kneaddata-database-download/4254/2 "2022-11-29T20:15:50Z")

</div>

I am having similar issues.