windows 8.1 64 Bit , Aptana 3.4.2 , Java 64 Bit
Error:
Java :
I got the exact same error but I was on Windows 10 64-bit, Aptana 3.6.1, with only 64-bit JDKs.
After I downloaded 32-bit 1.7 JDK, I was able to open and run Aptana just fine.
I didn't need to modify the .ini file as AbuSitta had suggested.
I'll agree it might be misleading to some if you don't take a sharper look and see the "x86, x64" description at the download page.