Change source AND target in core/pom.xml from 1.6 to 1.5. Use Java 1.6 mvn clean compile You may get some compilation errors in Bayes* and CBayes* classes (to do with Dequeue IIRC). You can comment that code out if you don't need it mvn clean compile jar:jar
This worked for me when I had to build a Java 1.5-friendly Mahout jar last week. Otis -- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch ----- Original Message ---- > From: Kevin Osborn <osbo...@yahoo.com> > To: mahout-user@lucene.apache.org > Sent: Thursday, April 16, 2009 7:11:35 PM > Subject: invalid target on mvn install > > It sounds like I may have some problem in my environment, but I can't seem to > find anything. > > JAVA_HOME is set to my JDK 1.5. > > But when I run mvn install, I get the following error: > > [INFO] [install:install-file {execution: create-commons-cli}] > [INFO] Installing > /home/maude/osbornk/TechTime/Mahout/lucene/mahout/trunk/core/lib/commons-cli-2.0-mahout.jar > > to > /home/maude/osbornk/.m2/repository/org/apache/mahout/commons/commons-cli/2.0-mahout/commons-cli-2.0-mahout.jar > [INFO] Creating Checksums... > [INFO] Creating Checksums... > [INFO] [resources:resources] > [INFO] Using 'UTF-8' encoding to copy filtered resources. > [INFO] Copying 0 resource > [INFO] [resources:copy-resources {execution: copy-resources}] > [INFO] Using 'UTF-8' encoding to copy filtered resources. > [INFO] Copying 3 resources > [INFO] [compiler:compile] > [INFO] Compiling 270 source files to > /home/maude/osbornk/TechTime/Mahout/lucene/mahout/trunk/core/target/classes > [INFO] > ------------------------------------------------------------------------ > [ERROR] BUILD FAILURE > [INFO] > ------------------------------------------------------------------------ > [INFO] Compilation failure > Failure executing javac, but could not parse the error: > javac: invalid target release: 1.6 > Usage: javac > where possible options include: > ... > > Any ideas?
