Can’t Install sdk and ide,like this

Can’t Install sdk and ide,like this

BY 12 Aug 2014 SDK & IDE

       “Cannot execute java even if it was installed. check environment variables or java version (over 1.6) please”,this is the warning.  but I hava installed the jdk(version 1.8.0_11), And the Variables is right.the system is windows 8.1.who can tell me why?

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