Mycroft-Linux Ubuntu-zlib error

Deepak_Goel · February 4, 2021, 2:43pm

Hello

I am trying to install Mycroft on Ubuntu.

When I run the command: “start-mycroft.sh all”, it gives me the following error:

Failed to set up virtualenv for mycroft, exiting setup.
zipimport.ZipImportError: can’t decompress data; zlib not available

Any clues?

Thank You
Deepak

P.S: I installed zlib1g as zlib is no longer available for Ubuntu

goldyfruit · February 4, 2021, 3:50pm

Hi @Deepak_Goel

zlib should be installed via pip inside the Mycroft venv not system wide.

Deepak_Goel · February 4, 2021, 4:25pm

Sorry, but I don’t quite understand. I am a newbie, so can you please elaborate a bit more?

baconator · February 4, 2021, 4:59pm

When running the setup.sh script, it should install all the needed elements for you. Did you see any errors when you ran that?

Deepak_Goel · February 4, 2021, 5:06pm

It gave the following error while installing

zipimport.ZipImportError: can’t decompress data; zlib not available
Failed to set up virtualenv for mycroft, exiting setup.

baconator · February 5, 2021, 7:09pm

Did you install zlib1g-dev as well?

Deepak_Goel · February 6, 2021, 7:05am

Yes I did install zlib1g-dev

Deepak_Goel · February 13, 2021, 1:37pm

Deepak_Goel · February 13, 2021, 1:39pm

I also tried building zlib from source code:

Still no success

Deepak_Goel · February 13, 2021, 2:53pm

I created a Ubuntu AWS instance and ran Mycroft on it. It does not give me the “zlib” error! The AWS instance is of the same Ubuntu version (20.04).

baconator · February 13, 2021, 8:16pm

What’s the difference between the two systems?

Deepak_Goel · February 14, 2021, 7:15am

One is on AWS and the second one is my work pc

baconator · February 14, 2021, 7:44am

You might want to make a slightly more detailed comparison if you’re going to solve this.

Deepak_Goel · February 14, 2021, 9:28am

Haha.

How do I do the comparison? Any tool which I can run to find the differences in them?

Thanks.

P.S:

If I run a “whereis zlib” on both the machines:

My desktop gives:

zlib: /usr/include/zlib.h /usr/local/zlib /use/share/man/man3/zlib.3.gz

Amazon gives:

zlib: /usr/include/zlib.h /use/share/man/man3/zlib.3.gz

baconator · February 14, 2021, 8:09pm

Well that’s off to a good start, then.

Check the packages (guessing debian based, dpkg -a | grep zlib) would be a good place to start. Start the mycroft venv and check its python packages (pip3 freeze). Compare both the names and versions to be sure. check the python versions, as well.