John J.A. Jannone

(mxj add dir) unable to init mxj classloader. ERROR: -50

It started happening with Max 6.0.0, and is still happening after an upgrade to 6.0.8

Any advice? Below is my whole Max window.

/Applications/Max6/Cycling '74/java/lib/DroneControlv0.3.3.jar

/Applications/Max6/Cycling '74/java/lib/jitter.jar

/Applications/Max6/Cycling '74/java/lib/jode-1.1.2-pre-embedded.jar

/Applications/Max6/Cycling '74/java/lib/max.jar

/Applications/Max6/Cycling '74/java/lib/maxlink.jar

/Applications/Max6/Cycling '74/java/classes/

MXJ System CLASSPATH:
   /Applications/Max6/Cycling '74/java/lib/DroneControlv0.3.3.jar
   /Applications/Max6/Cycling '74/java/lib/jitter.jar
   /Applications/Max6/Cycling '74/java/lib/jode-1.1.2-pre-embedded.jar
   /Applications/Max6/Cycling '74/java/lib/max.jar
   /Applications/Max6/Cycling '74/java/lib/maxlink.jar
MXJClassloader CLASSPATH:
   /Applications/Max6/Cycling '74/java/classes/
(mxj add dir) unable to init mxj classloader. ERROR: -50
Jitter initialized
Jitter Java support installed
Could not load class 'net.maxhole'
Could not load class 'net.maxhole'
Could not load class 'net.maxhole'
Could not load class 'net.multi.recv'


mxj-add-dir-unable-to-init-mxj-classloader-error-50

; specify some jvm options ;
max.jvm.option -Xincgc
max.jvm.option -Xms64m
max.jvm.option -Xmx256m

Stupid question: you do (still) have Java installed, yes? OS X updates have a tendency to remove it.

Not stupid at all; I had to check! Terminal tells me:

johns-laptop:Bluetooth john$ java -version

Java(TM) SE Runtime Environment (build 1.6.0_33-b03-424-11M3720)

Java HotSpot(TM) 64-Bit Server VM (build 20.8-b03-424, mixed mode)

johns-laptop:Bluetooth john$ java -version
java version "1.6.0_33"
Java(TM) SE Runtime Environment (build 1.6.0_33-b03-424-11M3720)
Java HotSpot(TM) 64-Bit Server VM (build 20.8-b03-424, mixed mode)


Maybe try checking disk permissions first. Then perhaps try renaming your Max6 folder, installing a fresh one - does it work now?