Drew this is probably an artifact of that last change, which converts SLF4J bindings to a runtime dependency.
But Zhendong this is something, I think, you would need to address locally. However you run this simple program -- the SLF4J binding has to be on the classpath. I would imagine you have always had to do this? On Sat, Jan 9, 2010 at 12:22 PM, zhao zhendong <zhaozhend...@gmail.com> wrote: > Hi all, > > When I new a SparseVector, the mahout-core always failed with > " > SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". > SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further > details. > Exception in thread "main" java.lang.NoClassDefFoundError: > org/slf4j/impl/StaticLoggerBinder > at org.slf4j.LoggerFactory.getSingleton(LoggerFactory.java:223) > at org.slf4j.LoggerFactory.bind(LoggerFactory.java:120) > at > org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111) > at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:269) > at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:242) > at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:255) > at > org.apache.mahout.math.map.PrimeFinder.<clinit>(PrimeFinder.java:24) > at > org.apache.mahout.math.map.AbstractMap.nextPrime(AbstractMap.java:141) > at > org.apache.mahout.math.map.OpenIntDoubleHashMap.setUp(OpenIntDoubleHashMap.java:578) > at > org.apache.mahout.math.map.OpenIntDoubleHashMap.<init>(OpenIntDoubleHashMap.java:66) > at > org.apache.mahout.math.map.OpenIntDoubleHashMap.<init>(OpenIntDoubleHashMap.java:52) > at org.apache.mahout.math.SparseVector.<init>(SparseVector.java:50) > at org.apache.mahout.math.SparseVector.<init>(SparseVector.java:60) > " > The testing code is extremely simple: > > public static void main(String [] args){ > System.out.println("hello world!"); > SparseVector v = new SparseVector(11); > System.out.println(v.size()); > } > > I've checked the reason from: > http://www.slf4j.org/codes.html#StaticLoggerBinder > > Failed to load class org.slf4j.impl.StaticLoggerBinder <#StaticLoggerBinder> > > This error is reported when the org.slf4j.impl.StaticLoggerBinder class > could not be loaded into memory. This happens when no appropriate SLF4J > binding could be found on the class path. Placing one (and only one) of * > slf4j-nop.jar*, *slf4j-simple.jar*, *slf4j-log4j12.jar*,*slf4j-jdk14.jar* > or *logback-classic.jar* on the class path should solve the problem. > > You can download SLF4J bindings from the project download > page<http://www.slf4j.org/download.html> > . > > > Has anybody met the same problem? > -- > ------------------------------------------------------------- > > Zhen-Dong Zhao (Maxim) > > <><<><><><><><><><>><><><><><>>>>>> > > Department of Computer Science > School of Computing > National University of Singapore > >><><><><><><><><><><><><><><><><<<< > Homepage:http://zhaozhendong.googlepages.com > Mail: zhaozhendong at gmail dot com >>>>>>>><><><><><><><><<><>><><<<<<< >
