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Possible Duplicate:
Can I have multiple XCode versions installed?

Hello,

When I installed Xcode 4 GM version, I lost my previous xcode 3.

It looks like that I cannot use with Xcode 4 with Xcode 3.

Is there anyway to use them together?

In fact, I want to use Three20 framework in my project, but Three20 scripts have not supported Xcode 4 yet.

Community
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Jinhyung Park
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    Xcode 4 is still under NDA and shouldn't be discussed in an open forum. However, Apple has provided a private forum where it can be discussed...I would suggest checking out https://devforums.apple.com/community/xcode4 – ericg Mar 07 '11 at 00:53

1 Answers1

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Choose a different install location.

Joe
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  • umm... my question was closed, but just in case, I record my result. Choosing a different install location is not working. I already tried this method. (Install Xcode 3 at /Developer_3 , and then install Xcode 4 at /Developer) When I run Xcode 4, Xcode 4 is crashed. – Jinhyung Park Mar 10 '11 at 06:37