diff --git a/pom.xml b/pom.xml
index 5f9f93517a..220406eda8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,6 +15,7 @@
 		<module>skywalking-alarm</module>
 		<module>skywalking-analysis</module>
 		<module>skywalking-webui</module>
+		<module>skywalking-log</module>
 	</modules>
 	<packaging>pom</packaging>
 
diff --git a/samples/skywalking-auth/skywalking-auth.iml b/samples/skywalking-auth/skywalking-auth.iml
deleted file mode 100644
index dd834b565d..0000000000
--- a/samples/skywalking-auth/skywalking-auth.iml
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_5" inherit-compiler-output="false">
-    <output url="file://$MODULE_DIR$/target/classes" />
-    <output-test url="file://$MODULE_DIR$/target/test-classes" />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
-      <excludeFolder url="file://$MODULE_DIR$/target" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" scope="TEST" name="Maven: junit:junit:3.8.1" level="project" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/skywalking-log/example/example.iml b/skywalking-log/example/example.iml
deleted file mode 100644
index 7db0c86ca2..0000000000
--- a/skywalking-log/example/example.iml
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_5" inherit-compiler-output="false">
-    <output url="file://$MODULE_DIR$/target/classes" />
-    <output-test url="file://$MODULE_DIR$/target/test-classes" />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
-      <excludeFolder url="file://$MODULE_DIR$/target" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" scope="TEST" name="Maven: junit:junit:3.8.1" level="project" />
-    <orderEntry type="library" scope="TEST" name="Maven: log4j:log4j:1.2.17" level="project" />
-    <orderEntry type="library" scope="TEST" name="Maven: org.apache.logging.log4j:log4j-core:2.4.1" level="project" />
-    <orderEntry type="library" scope="TEST" name="Maven: org.apache.logging.log4j:log4j-api:2.4.1" level="project" />
-    <orderEntry type="module" module-name="log4j-2.x-plugin" />
-    <orderEntry type="module" module-name="skywalking-api" />
-    <orderEntry type="module" module-name="skywalking-protocol" />
-    <orderEntry type="module" module-name="skywalking-log4j-1.x-plugin" />
-  </component>
-</module>
\ No newline at end of file