Before some days I am using my eclipse in to Windows XP. I also have one another OS (Windows 7) in to another Drive. Now I want to use the Eclipse for Android from Windows 7. But, While I have open Eclipse it gives me the Error like the Some file is locked. Well I have solve that error from here: This link
But now, If i open My old created Workspace in this Windows7's Eclipse then the project loaded but i am not able to open any project of that workspace.
If i load the existing workspace then it gives me error like:
unable to open class file. . ./R.java permission denied.
And If i open it from another new Workspace then it gives me error like :
[2011-09-07 12:03:25 - SpellingQuiz] Android requires compiler compliance level 5.0 or 6.0. Found '1.4' instead. Please use Android Tools > Fix Project Properties.
Now What should i have to do ? How can this problem resolve ?? Please help me regarding this.