I'm crazy two weeks. I use windows server 2007 and I want to just an oracle client . I have jdk's path is C:\Program Files\Java\jdk1.8.0_05 I have two jre path is C:\Program Files\Java\jre7 and C:\Program Files\Java\jre8 . I add to environment variable like JAVA_HOME and C:\Program Files\Java\jre7 but not not not I see same error. How can I fixed please