下面是我的build.xml文件。 <!-- override "compile" target in platform android_rules.xml to include tested app's external libraries --> <target name="compile" depends="-resource-src, -aidl" description="Compiles project's .java files into .class files"><!-- If android rules are used for a test project, its classpath should include tested project's location --><condition property="extensible.classpath" value="${tested.project.dir}/bin/classes" else="."><isset property="tested.project.dir" /></condition><javac encoding="ascii" target="1.5" debug="true" extdirs="" destdir="${out.classes.absolute.dir}" bootclasspathref="android.target.classpath" verbose="${verbose}" classpath="${extensible.classpath}"> <src path="${source.absolute.dir}" /> <src path="${gen.absolute.dir}" /> <classpath> <fileset dir="${tested.project.dir}/libs" includes="*.jar" /> <fileset dir="${tested.project.dir}/bin/classes" includes="*.class" /> <fileset dir="${external.libs.absolute.dir}/libs" includes="*.jar" /> </classpath></javac></target> 可以copy上面的配置到你的build.xml文件中。另外建议，编辑测试工程、目标工程根目录下的build.properties这个文件（如果没有就新建），在里面添加emma.enabled=true。