diff --git a/build.gradle b/build.gradle
index d773362..675e785 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,3 +1,6 @@
+import com.github.jengelman.gradle.plugins.shadow.transformers.AppendingTransformer
+import com.github.jengelman.gradle.plugins.shadow.transformers.Log4j2PluginsCacheFileTransformer
+
 plugins {
 	id "com.jfrog.artifactory" version "4.28.3" //artifactory support
 	id 'groovy' // groovy support
@@ -11,6 +14,7 @@ plugins {
 	id 'com.github.onslip.gradle-one-jar' version '1.0.6' // pack a self contained jar
 	id 'jacoco' // java code coverage plugin
 	id "org.sonarqube" version "3.3" // sonarqube
+	id "com.github.johnrengelman.shadow" version "7.1.2" // fat jar
 }
 
 ext {
@@ -31,13 +35,11 @@ defaultTasks 'build'
 sourceCompatibility = javaVersion
 targetCompatibility = javaVersion
 
-
 apply from: scriptsLocation + 'pmd.gradle'
 apply from: scriptsLocation + 'spotbugs.gradle'
 apply from: scriptsLocation + 'spotless.gradle'
 apply from: scriptsLocation + 'modernizer.gradle'
 apply from: scriptsLocation + 'checkJavaVersion.gradle'
-apply from: scriptsLocation + 'fatJar.gradle'
 apply from: scriptsLocation + 'tests.gradle'
 apply from: scriptsLocation + 'jacoco.gradle' // jacoco java code coverage
 apply from: scriptsLocation + 'sonarqube.gradle' // sonarqube config
@@ -125,7 +127,7 @@ publishing {
 			from components.java
 			artifact sourcesJar
 			artifact javadocJar
-			artifact fatJar
+			artifact shadowJar
 			versionMapping {
 				usage('java-api') {
 					fromResolutionOf('runtimeClasspath')
@@ -151,7 +153,7 @@ tasks.withType(JavaCompile) {
 }
 
 application {
-	mainClassName = mainClass
+	mainClassName = "edu.ie3.tools.Main"
 }
 
 jar {
@@ -166,3 +168,11 @@ run {
 	// Gradle uses an empty Input as default, leading to a non-blocking behaviour and thus an immediate shutdown
 	standardInput = System.in
 }
+
+shadowJar {
+	transform(AppendingTransformer) {
+		resource = 'reference.conf'
+	}
+	transform(Log4j2PluginsCacheFileTransformer)
+	zip64 = true
+}
diff --git a/gradle/scripts/fatJar.gradle b/gradle/scripts/fatJar.gradle
deleted file mode 100644
index 5f3823d..0000000
--- a/gradle/scripts/fatJar.gradle
+++ /dev/null
@@ -1,13 +0,0 @@
-tasks.register('fatJar', Jar){
-	getArchiveClassifier().set('fat')
-	manifest {
-		attributes(
-				'Main-Class': mainClass
-		)
-	}
-	//baseName = project.archivesBaseName + '-fat'
-	from {
-		configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
-	}
-	with jar
-}
diff --git a/src/main/java/edu/ie3/tools/Converter.java b/src/main/java/edu/ie3/tools/Converter.java
index 9317209..b85ca1a 100644
--- a/src/main/java/edu/ie3/tools/Converter.java
+++ b/src/main/java/edu/ie3/tools/Converter.java
@@ -83,7 +83,9 @@ public void run() {
       printInit();
       validateConnectionProperties();
       convert();
-    } else logger.info("Converter is already running.");
+    } else
+      logger.info(
+          "Converter is already running or you can't acquire a lock (in which case you might try sudo).");
   }
 
   /** Validates Connection Properties from user input */