If that doesnt help you can try deleting cygwin1dll

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Unformatted text preview: ino run on old versions of Mac OS X?</h3> <p>If you get an error like this: </p> <p class='vspace'></p><pre>Link (dyld) error: dyld: /Applications/arduino-0004/Arduino 04.app/Contents/MacOS/Arduino Undefined symbols: /Applications/arduino-0004/librxtxSerial.jnilib undefined reference to _printf$LDBL128 expected to be defined in /usr/lib/libSystem.B.dylib </pre> <p class='vspace'></p><p>you probably need to upgrade to Max OS X 10.3.9 or later. Older versions have incompatible versions of some system libraries. </p> <p class='vspace'></p><p>Thanks to Gabe462 for the report. </p> <p class='vspace'></p><h3><a name='toc11' id='toc11'></a>What do I do if I get an <span class='wikiword'>UnsatisfiedLinkError</span> error (about native library librxtxSerial.jnilib) when launching Arduino?</h3> <p>If you get an error like this when launching Arduino: </p> <p class='vspace'></p><p><code>Uncaught exception in main method: java.<span class='wikiword'>lang.UnsatisfiedLinkError</span>: Native Library /Users/anu/Desktop/arduino-0002/librxtxSerial.jnilib already loaded in another classloader</code> </p> <p class='vspace'></p><p>you probably have an old version of the communications library lying around. Search for comm.jar or jcl.jar in /System/Library/<span class='wikiword'>Frameworks/JavaVM</span>.framework/ or in directories in your CLASSPATH or PATH environment variables. (reported by Anurag Sehgal) </p> <p class='vspace'></p><h3><a name='toc12' id='toc12'></a>What about the error "Could not find the main class."?</h3> <p>If you get this error when launching Arduino: </p> <p class='vspace'></p><p><code>Java Virtual Machine Launcher: Could not find the main class. Program will exit.</code> </p> <p class='vspace'></p><p>make sure that you correctly extracted the contents of the Arduino .zip file - in particular that the <strong>lib</strong> directory is directly inside of the Arduino directory and contains the file <strong>pde.jar</strong>. </p> <p class='vspace'></p><h3><a name='toc13' id='toc13'></a>What can I do about cygwin conflicts on Windows?</h3> <p>If you already have cygwin installed on your machine, you might get an error like this when you try to compile a sketch in Arduino: </p> <p class='vspace'></p><p><code> 6 [main] ? (3512) C:\Dev\arduino-0006\tools\avr\bin\avr-gcc.exe: *** fatal error - C:\Dev\arduino-0006\tools\avr\bin\avr-gcc.exe: *** system shared memory version mismatch detected - 0x75BE0084/0x75BE009C.</code> </p> <p class='vspace'></p><p><code>This problem is probably due to using incompatible versions of the cygwin DLL.</code> </p> <p class='vspace'></p><p><code&...
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