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stuartr posted a topic in DesignLab IDEI'm a Noob with a Papilio Pro, LogicStart MegaWing and have had some success and great fun following the Intro to Spartan FPGA book - so thank you. I'd like to have a go with ZAP IDE / ZPUino but I'm falling at the first hurdle - getting the IDE running on Linux - specifically Ubuntu 13.10 It seems that I'm attempting to use 32bit code on my 64bit architecture. stu@glenmoray:~/Downloads/papilio-zap-ide$ sudo ./zap[sudo] password for stu:Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 14: reading configurations from ~/.fonts.conf is deprecated.OpenJDK 64-Bit Server VM warning: You have loaded library /home/stu/Downloads/papilio-zap-ide/lib/librxtxSerial.so which might have disabled stack guard. The VM will try to fix the stack guard now.It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.java.lang.UnsatisfiedLinkError: /home/stu/Downloads/papilio-zap-ide/lib/librxtxSerial.so: /home/stu/Downloads/papilio-zap-ide/lib/librxtxSerial.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch) thrown while loading gnu.io.RXTXCommDriverException in thread "main" java.lang.UnsatisfiedLinkError: /home/stu/Downloads/papilio-zap-ide/lib/librxtxSerial.so: /home/stu/Downloads/papilio-zap-ide/lib/librxtxSerial.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch) at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1965) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1890) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1880)Recognising this, if I'm correct, and having the knowledge to do something about it are different things for me (and I suspect other beginners). Previous posts about Ubuntu 13.04 have suggested: sudo apt-get install ia32-libsbut this doesn't work on Ubuntu 13.10. Could anyone help me get over the hurdle of installing the simple IDE for the simple Soft processor - feeling very thick. Stu