# Getting error while server startup/for any ruby operation

**URL:** <https://www.ruby-forum.com/t/getting-error-while-server-startup-for-any-ruby-operation/92317>\
**Category:** Rails\
**Created:** [April 18, 2007, 7:52am UTC](https://www.ruby-forum.com/t/getting-error-while-server-startup-for-any-ruby-operation/92317 "2007-04-18T07:52:23Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![saravanan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/eb8c5e/32.png) [@saravanan](https://www.ruby-forum.com/u/saravanan)\
**Post date:** [April 18, 2007, 7:52am UTC](https://www.ruby-forum.com/t/getting-error-while-server-startup-for-any-ruby-operation/92317/1 "2007-04-18T07:52:23Z")

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Hi,

```
  I have ruby on my system.
  To get pdf report from the application, I searched in google and

```

got one gem and installed with their installation hints.  
I extract the folder and in that a bulk of files like in ruby  
folder with a read me file.  
It ask me to run setup.exe.  
I successfully did it.

```
  But, now I can't run the server.
  While Iam starting server/to do any ruby operation, it is showing

```

like follows.

```
  cmd>ruby
  ruby: invalid option -: (-h will show valid options)

  Please help me, to clear this. What is this problem? How can i

```

clear it?