The most likely cause is a classpath problem. Is the environment still pointing to Java6 jar files?
Try enabling verbose output and see what you get. Donald On 1/10/12 10:12 AM, Dan Checkoway wrote:
With Java 6 all is well... $ java -version java version "1.6.0_26" Java(TM) SE Runtime Environment (build 1.6.0_26-b03) Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode) $ ant -version Apache Ant version 1.6.5 compiled on January 6 2007 ...but once I upgrade to Java 7: $ java -version java version "1.7.0_02" Java(TM) SE Runtime Environment (build 1.7.0_02-b13) Java HotSpot(TM) 64-Bit Server VM (build 22.0-b10, mixed mode) $ ant -version Error: Could not find or load main class org.apache.tools.ant.launch.Launcher Any advice?
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