! zlib: Cannot read property 'length' of null

[rzvdaniel]

Hi guys,

When trying to create a template project with:

degit sveltejs/template my-template-project

The following error is raised in the command line:

! zlib: Cannot read property 'length' of null

Environment

Windows 7 Professional
Command Line with/without Administrator rights
The path where I'm trying to initialize the project is not restricted in any way.

What it can be?

Update:

I think it is something related to Windows 7 or my machine. I've tested it on a Windows 10 and it is working fine. Can you please close this issue as probably there is no one to use Windows 7 anymore :P.

Best!
Razvan

[rafaelcmrj]

+1

[jap1968]

Same problem here with Ubuntu 18.04. It is not a Windows 7 problem, definitely!

$ npx degit sveltejs/template my-svelte-project
npx: instaló 33 en 5.374s
! zlib: Cannot read property 'length' of null
$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.3 LTS
Release:	18.04
Codename:	bionic
$ uname -a
Linux HPED800 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

Update: Problem solved after updating node
$ npx degit sveltejs/template my-svelte-project
npx: instaló 33 en 2.018s

cloned sveltejs/template#master to my-svelte-project

$ node -v
v10.16.3

Previously I had node v9.0.0

[shvargon]

Sorry my bad english.

In fact, this is a similar problem with this one sapper ! zlib: unexpected end of file. The zlib problem means a problem in the downloaded archive and has nothing to do with node npm or npx. Apparently degit with a bad connection deflates a broken archive. And in the future uses it.

I quote from Readme.md
... and download the associated tar file to ~ / .degit / some-user / some-repo / commithash.tar.gz if it doesn't already exist locally

And until someone commits, he will try to use it. Solving the problem by deleting the degit folder.

The question is can degit check archive integrity?

Or add an option to reload an archive like --force-upload?

[RaminMammadzada]

Thanks @shvargon !
Deleting ~/.degit folder also helped me out.