Why not open xcode

Open xcode he jumped a few below about 1 minute and then did not respond to the
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Restart
Reply is too short!
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Restart the junction points
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Only Restart look slightly
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Never met, but I also met then try to restart
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This encounter, based on your description, I analyzed the reasons may be as follows:
1, if a virtual machine, it tells you that unless the machine performance is very strong, otherwise it is generally the case; Our company basically no machine can run up a virtual machine MAC XCode below, are tap, jump a few times After no response;
2, if you are using MAC MAC system installed on the machine or PC, then this is not normal, our company and my PC does not have this problem installing the MAC;
MAC system log function, you need to check the system log.
Reply:
You try to open from the project. If not, there may be a real problem.
I had also thought that I dont open.
In fact been opened. Not open when the project will start in the upper left corner of the computer has a menu bar.