android - Can't start Eclipse - Java was started but returned exit code=13

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I am trying to get my first taste of
Android development using Eclipse. I ran into this problem when trying to run Eclipse,
having installed version 4.2 only minutes
ago.

After first trying to start
Eclipse without any parameters to specify the Java VM, I got an
error message saying it couldn't find a Java VM called javaw.exe inside the
Eclipse folder, so I found where Java was installed and specified that
location as the parameter in the shortcut's target. Now I get a different error,
Java was started but returned exit
code=13.

Similar questions seem to
indicate that it's a 32-bit/64-bit conflict, but I'm 99% positive that I downloaded
64-bit versions of both Eclipse and Java (RE 7u5), which I
chose because I have 64-bit Windows 7.

• If anyone knows how to
  confirm that my Eclipse and Java are 64-bit,
  that'd be
  appreciated.


• If you think my problem is a different one,
  please help!


• Please speak as plainly as you can, as I am
  totally new to Eclipse
  
  and
  Java.

Shortcut Target: "C:\Program
Files\Eclipse-SDK-4.2-win32-x86_64\eclipse\eclipse.exe" -vm "C:\Program Files
(x86)\Java\jre7\bin\javaw.exe"

Full
error code...:

Java
            was started but returned exit code=13

C:\Program Files
            (x86)\Java\jre7\bin\javaw.exe
-Xms40m
-Xmx512m
-XX:MaxPermSize=256m
-jar
            C:\Program
            Files\Eclipse-SDK-4.2-win32-x86_64\eclipse\\plugins/org.eclipse.equinox.launcher_1.30v20120522-1813.jar
-os
            win32
-ws win32
-arch x86_64
-showsplash C:\Program
            Files\Eclipse-SDK-4.2-win32-x86_64\eclipse\\plugins\org.eclipse.platform_4.2.0.v201206081400\splash.bmp
-launcher
            C:\Program
            Files\Eclipse-SDK-4.2-win32-x86_64\eclipse\eclipse.exe

-name
            Eclipse
--launcher.library C:\Program
            Files\Eclipse-SDK-4.2-win32-x86_64\eclipse\\plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v201205221813\eclipse_1503.dll
-startup
            C:\Program
            Files\Eclipse-SDK-4.2-win32-x86_64\eclipse\\plugins/org.eclipse.equinox.launcher_1.30v20120522-1813.jar
--launcher.overrideVmargs
-exitdata
            1e30_5c
-vm C:\Program Files
            (x86)\Java\jre7\bin\javaw.exe
-vmargs
-Xms40m
-Xmx512m
-XX:MaxPermSize=256m

-jar
            C:\Program
            Files\Eclipse-SDK-4.2-win32-x86_64\eclipse\\plugins/org.eclipse.equinox.launcher_1.30v20120522-1813.jar

Answer

There are working combinations of OS, JDK and
Eclipse bitness. In my case, I was using a 64-bit JDK with a 32-bit Eclipse on a 64-bit
OS. After downgrading the JDK to 32-bit, Eclipse started
working.

Kindly use one of the
following
combinations.

• 32-bit
  OS, 32-bit JDK, 32-bit Eclipse (32-bit only)


• 64-bit OS,
  32-bit JDK, 32-bit Eclipse



• 64-bit OS, 64-bit
  JDK, 64-bit Eclipse (64-bit only)