Hi, I am new to maven and chekstyle, so need to ask some question... I want to use checkstyle in my maven based project, so in my pom.xml I have add the dependency <dependency> <groupId>checkstyle</groupId> <artifactId>checkstyle</artifactId> <version>2.4</version> </dependency> and also I have added the entry in plugin tag: <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-checkstyle-plugin</artifactId> <version>2.4</version> <configuration> <enableRulesSummary>true</enableRulesSummary> <configLocation>checkstyle.xml</configLocation> </configuration> </plugin> But when I run my maven build with command mvn clean install, checkstyle doesn't do anything. And as I dont have any checkstyle.xml in my system yet, shouldn't it complains me about the error? What else configuration am I missing?