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Index › Programming Questions & Help › Integration › UnsupportedClassVersionError
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UnsupportedClassVersionError (Read 1211 times)
megamu
UnsupportedClassVersionError
Feb 25th, 2006, 12:29am  
I've been trying to get this jd2xx library to work http://bleyer.org/jd2xx/ by including the jar and dll files into my code folder but every time I try to create a JD2XX object with this code:

void setup(){
 JD2XX jd = new JD2XX();
}

void loop(){
}

I get this error:

java.lang.UnsupportedClassVersionError: jd2xx/JD2XX (Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)

I can't figure out what the hell this error means. Can anyone offer some help or insight as to what this error is and how I might go about fixing it?

Thanks so much!
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JohnG
Re: UnsupportedClassVersionError
Reply #1 - Feb 25th, 2006, 11:11am  
Have you included the "import" lines?

Code:
import jd2xx.JD2XX;
import jd2xx.JD2XXInputStream;
import jd2xx.JD2XXOutputStream;
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fry
Re: UnsupportedClassVersionError
Reply #2 - Feb 25th, 2006, 4:44pm  
that probably means that those classes were compiled using the java 1.5 version of javac, which is not compatible with processing.
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