Why is 7-Zip failing during this Chocolatey installation on Windows 10?

user_3966480 0
Viewed 6347

I am trying to install Chocolatey 

https://chocolatey.org/install

and using the command:

@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"

It is showing error:

Unable to unzip package using 7zip. Perhaps try setting $env:chocolateyUseWindowsCompression = 'true' and call install
again. Error: 7-Zip encountered a fatal error while extracting the files
At line:221 char:9
+     2 { throw "$errorMessage 7-Zip encountered a fatal error while ex ...
+         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OperationStopped: (Unable to unzip...cting the files:String) [], RuntimeException
    + FullyQualifiedErrorId : Unable to unzip package using 7zip. Perhaps try setting $env:chocolateyUseWindowsCompres
   sion = 'true' and call install again. Error: 7-Zip encountered a fatal error while extracting the files

I have 7zip installed.

chocolatey windows
4 Answers

I encounter the same issue.

Running window cmd as administrator may be a solution for some but in my case i had to update my window system environment variable, I just added this to exiting value on path: $env:chocolateyUseWindowsCompression = 'true' and all works just fine.

user_48993150

I had the same error when I was trying to install chocolatey on multiple servers which was finally getting blocked at chocolatey server, which is a chocolatey feature.

https://chocolatey.org/docs/community-packages-disclaimer#rate-limiting

Hence the downloaded file is null and cannot be unzipped. The block is lifted an hour later. After rate limit is lifted, the errors disappears until you trigger it again.

Rate limiting also applies to other packages. When limit is hit while downloading a package other than chocolatey itself, you will get an error code 429.

https://chocolatey.org/docs/troubleshooting#im-getting-a-429-too-many-requests-issue-when-attempting-to-use-the-community-package-repository

user_53749180

First answer: Running window cmd as administrator may be a solution for some but in my case i had to update my window system environment variable, I just added this to exiting value on path: $env:chocolateyUseWindowsCompression = 'true' and all works just fine.

may not work immediately and you still receive "Unable to unzip package using 7zip." error.

Try again after restarting your machine. In my case command works after restarting.

Thx karam

user_72478560
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