# InstantRails and Java - conflict?

**URL:** <https://www.ruby-forum.com/t/instantrails-and-java-conflict/112666>\
**Category:** Rails\
**Created:** [August 21, 2007, 11:20pm UTC](https://www.ruby-forum.com/t/instantrails-and-java-conflict/112666 "2007-08-21T23:20:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sjw](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/258eb7/32.png) [@sjw](https://www.ruby-forum.com/u/sjw)\
**Post date:** [August 21, 2007, 11:20pm UTC](https://www.ruby-forum.com/t/instantrails-and-java-conflict/112666/1 "2007-08-21T23:20:57Z")

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Hi All,

I know zero about Ruby on Rails but hope to learn, and I already have  
a problem. I downloaded and installed InstantRails, which says it  
changes nothing on your system. Immediately after that, I started  
having serious problems with RenderX XEP, which has always run  
perfectly. I discovered, finally, that my Java installation was  
corrupt (jre1.6). I had to delete all my InstantRails files, then  
uninstall and reinstall Java, and now XEP works fine again.

Maybe this sounds crazy, but nothing else changed on my machine. Prior  
to the InstantRails install I had been running XEP for hours with no  
problem. I stopped briefly to install InstantRails, and the minute I  
went back to XEP it was screwed up.

Please tell me, is there any way that InstantRails can create some  
sort of conflict with my Java installation? Or corrupt Java? XEP also  
uses Apache, if that has anything to do with anything. The only other  
odd thing I noticed is that when I went into add/remove programs to  
uninstall Java, it listed my Java program as “rarely used”, which is  
not true since I had been using XEP all day every day for the last  
week or so. Strange.

I really want to get InstantRails installed, but I can’t afford to  
lose XEP, so before I try again I’d appreciate any information or  
suggestions.

Thanks,  
Susan

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<div class="post-metadata">

**Author:** ![sjw](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/258eb7/32.png) [@sjw](https://www.ruby-forum.com/u/sjw)\
**Post date:** [August 21, 2007, 11:22pm UTC](https://www.ruby-forum.com/t/instantrails-and-java-conflict/112666/2 "2007-08-21T23:22:57Z")

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Make sure that the InstantRails PORT NUMBER it wants to run on  
doesn’t conflict with anything else.  
And try again!

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<div class="post-metadata">

**Author:** ![sjw](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/258eb7/32.png) [@sjw](https://www.ruby-forum.com/u/sjw)\
**Post date:** [August 22, 2007, 12:01am UTC](https://www.ruby-forum.com/t/instantrails-and-java-conflict/112666/3 "2007-08-22T00:01:05Z")

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Okay, then I’ll need to learn how to find/set port numbers. Thank you  
very much!

Susan