CODEWITHSUNDEEP
ruby-on-railsrubywindows
rubyist
rubyist

Reputation: 3132

ERROR: While executing gem ... (Zlib::GzipFile::Error) not in gzip format

I am trying to execute the command "gem update --system" in my windows command prompt and it shows the error as 

Updating rubygems-update
ERROR:  While executing gem ... (Zlib::GzipFile::Error)
    not in gzip format

When I try to install any gems also with gem install gemname command it is showing the same error message.

Please help. I am executing the command in windows.

Upvotes: 2

Views: 2506

Answers (3)

A.D.
A.D.

Reputation: 4614

For anybody who is reviving some old app:

I tried downloading GEM from rubygems.org and installing with gem install gemname.gem but it still ended with same err:

ERROR:  While executing gem ... (Zlib::GzipFile::Error)
    not in gzip format

Adding explicitly --local helped.

gem install --local ~/Downloads/gemname-X.Y.gem

Not going to investigate more, but it was with:

RUBYGEMS VERSION: 1.3.5
RUBY VERSION: 1.8.7 (2013-12-22 patchlevel 375) [i686-darwin18.7.0]
in ASDF environment..with custom compiled openssl 1.0.2

Upvotes: 1

Tranvu Xuannhat
Tranvu Xuannhat

Reputation: 604

I get the same issue with ruby version 1.9.3-p551 downloaded with rbenv on macOS High Sierra and looking for multiple solutions online but none of them work.

However, I notice that when I run

gem sources

The result is 

*** CURRENT SOURCES ***

http://rubygems.org/

When I run with ruby version 2.1.9, the result is

*** CURRENT SOURCES ***

https://rubygems.org/

So I remove the http source and use https

gem sources -r http://rubygems.org/
gem sources -a https://rubygems.org/

It works! So I doubt that the http server has problem dealing with gzip encoding. Hope this help for everyone using old ruby version like 1.9.3.

Upvotes: 1

Zachary Wright
Zachary Wright

Reputation: 24070

Are you trying to do this at your workplace or school that might be blocking the downloads?

The solution in this question: ERROR: While executing gem ... (Zlib::GzipFile::Error) not in gzip format

Was to download the gems directly from http://rubygems.org/gems, then run the install commands, since it looks locally first.

Upvotes: 0

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