# Zlib::BufError on Windows Server 2003

**URL:** <https://www.ruby-forum.com/t/zlib-buferror-on-windows-server-2003/175549>\
**Category:** Ruby\
**Created:** [September 15, 2009, 2:00pm UTC](https://www.ruby-forum.com/t/zlib-buferror-on-windows-server-2003/175549 "2009-09-15T14:00:10Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![stamu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b3f665/32.png) [@stamu](https://www.ruby-forum.com/u/stamu)\
**Post date:** [September 15, 2009, 2:00pm UTC](https://www.ruby-forum.com/t/zlib-buferror-on-windows-server-2003/175549/1 "2009-09-15T14:00:10Z")

</div>

Im trying to set Redmine to Windows Server 2003R2 SP2.  
I set Ruby, Gems, but when Im installing rake or rails or other gem I  
get error

ERROR: While executing gem … (Zlib::BufError)  
buffer error

Command “gem update --system” doesn’t help.

I was trying Ruby 1.8.6 and 1.8.7 with the same result.

How can I solve this problem with Zlib ??

PS:  
I logged to Server as Administrator.  
On Windows XP computer ruby works fine.

---

<div class="post-metadata">

**Author:** ![stamu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b3f665/32.png) [@stamu](https://www.ruby-forum.com/u/stamu)\
**Post date:** [September 15, 2009, 4:19pm UTC](https://www.ruby-forum.com/t/zlib-buferror-on-windows-server-2003/175549/2 "2009-09-15T16:19:22Z")

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St Kos wrote:

> Im trying to set Redmine to Windows Server 2003R2 SP2.  
> I set Ruby, Gems, but when Im installing rake or rails or other gem I  
> get error
> 
> ERROR: While executing gem … (Zlib::BufError)  
> buffer error
> 
> Command “gem update --system” doesn’t help.
> 
> I was trying Ruby 1.8.6 and 1.8.7 with the same result.
> 
> How can I solve this problem with Zlib ??
> 
> PS:  
> I logged to Server as Administrator.  
> On Windows XP computer ruby works fine.

gem i rake -include-dependeces  
This command helped to solve that error.

---

<div class="post-metadata">

**Author:** ![stamu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b3f665/32.png) [@stamu](https://www.ruby-forum.com/u/stamu)\
**Post date:** [September 17, 2009, 2:55pm UTC](https://www.ruby-forum.com/t/zlib-buferror-on-windows-server-2003/175549/3 "2009-09-17T14:55:10Z")

</div>

St Kos wrote:

> Im trying to set Redmine to Windows Server 2003R2 SP2.  
> I set Ruby, Gems, but when Im installing rake or rails or other gem I  
> get error
> 
> ERROR: While executing gem … (Zlib::BufError)  
> buffer error

You may be able to overcome this by using mingw ruby [1] or by  
installing pure ruby zlib.  
GL.  
-r  
[1] [rubyinstaller.org](http://rubyinstaller.org)