Processing+Ubuntu11.04-64bit

想在ubuntu上也可以使用Processing開發，所以

下載processing-1.5.1-linux.tgz

解開

tar xvf processing-1.5.1-linux.tgz

jimchin@mpinfo-jimchin:~$ tar xvf processing-1.5.1-linux.tgz

進入解開資料夾內

jimchin@mpinfo-jimchin:~$ cd processing-1.5.1

執行processing

jimchin@mpinfo-jimchin:~/processing-1.5.1$ ./processing 

發生以下錯誤，本以為是Java發生問題，

jimchin@mpinfo-jimchin:~/processing-1.5.1$ Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/jimchin/processing-1.5.1/java/lib/i386/xawt/libmawt.so: libXext.so.6: cannot open shared object file: No such file or directory
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1803)
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1699)
    at java.lang.Runtime.load0(Runtime.java:770)
    at java.lang.System.load(System.java:1003)
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1803)
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1720)
    at java.lang.Runtime.loadLibrary0(Runtime.java:823)
    at java.lang.System.loadLibrary(System.java:1028)
    at sun.security.action.LoadLibraryAction.run(LoadLibraryAction.java:50)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.awt.Toolkit.loadLibraries(Toolkit.java:1605)
    at java.awt.Toolkit.<clinit>(Toolkit.java:1627)
    at processing.app.Base.<clinit>(Base.java:445)
Could not find the main class: processing.app.Base.  Program will exit.

確認Java 是oracle sun Java版本

jimchin@mpinfo-jimchin:~/processing-1.5.1$ java -version

且路徑沒有錯誤

jimchin@mpinfo-jimchin:~/processing-1.5.1$ ls /usr/lib

java-1.6.0-openjdk  java-6-openjdk  java-6-sun  java-6-sun-1.6.0.26

後來在processing.org官網上看到

The Processing Development Environment (PDE) is currently tested on:

1. Mac OS X 10.6
2. Windows XP (latest service pack only)
3. Windows 7 (32-bit, limited testing on 64-bit)
4. Ubuntu Linux 9.04 (on i686, limited on x86_64) 

也就是只支援32bit，所以只好另外安排linux可以在64bit內使用32bit程式的lib - ia32-libs。

jimchin@mpinfo-jimchin:~/processing-1.5.1$ sudo apt-get install ia32-libs
安裝好，再啟動./processing。就可以看到啟動畫面了