diff --git a/src/main/scala/org/rosi_project/model_sync/generator/acr_model/SClass.scala b/src/main/scala/org/rosi_project/model_sync/generator/acr_model/SClass.scala
index c7e850ec628d087ddbad3d32d03e4408fab063b0..5046e45cba3cd61f40bc6586309b5ff8bd23f384 100644
--- a/src/main/scala/org/rosi_project/model_sync/generator/acr_model/SClass.scala
+++ b/src/main/scala/org/rosi_project/model_sync/generator/acr_model/SClass.scala
@@ -1,6 +1,7 @@
 package org.rosi_project.model_sync.generator.acr_model
 
 import java.util.Objects
+import org.rosi_project.model_sync.generator.acr_model.types.SSeq
 
 /** Representation of Scala classes. Attributes, methods, etc. have their own wrappers which should
   * be used to modify these individual parts of the class.
@@ -194,13 +195,9 @@ class SClass(_name: String,
 
   /** Provides all types `this` classes accesses in some way. */
   def getUsedTypes: Set[STypedElement] = {
-    //println(this + " Parents: " + getAllParents)
-    val parentImport: Seq[STypedElement] = getAllParents()
-
+    //parent constructor parameter types
     val parentConstructorParamImports: Seq[STypedElement] = if (isRootClass) List() else getClassParent match {
       case parent: SClass => 
-        println(parent.getDeepStructuralFeatures)
-        println(parent.getDeepStructuralFeatures.map(_.sType))
         parent.getDeepStructuralFeatures.map(_.sType)
       case _ => List()
     }
@@ -217,15 +214,29 @@ class SClass(_name: String,
     val methodParamImports: Seq[STypedElement] = methods.flatMap(_.params).map(_.paramType)
 
     val methodImplImports: Seq[STypedElement] = methods.flatMap(_.getUsedTypes.toList)
-
-    // create a set to eliminate duplicates
-    (parentImport
+    
+    val allImports: Seq[STypedElement] = (getAllParents
       ++ parentConstructorParamImports
       ++ attrTypeImports
       ++ refTypeImports
       ++ methodResultImports
       ++ methodParamImports
-      ++ methodImplImports).toSet
+      ++ methodImplImports)
+      
+    var allCleanImports: Seq[STypedElement] = Seq.empty
+    
+    allImports.foreach(i => {
+      i match {
+        case seq: SSeq => 
+          allCleanImports = allCleanImports :+ seq.elemType
+        case t: STypedElement => 
+          allCleanImports = allCleanImports :+ t
+        //case _ => 
+      }
+    })
+    
+    // create a set to eliminate duplicates
+    allCleanImports.toSet
   }
 
   override def getConstructorParameters: Seq[SMethodParameter] = {
@@ -299,6 +310,7 @@ class SClass(_name: String,
     *         otherwise
     */
   private def includeImportIfNecessary(sPackage: String, sClass: String, list: List[SImport]): List[SImport] = {
+    //TODO: normally we must somehow catch SList and SSeq to get the internal types
     if (sPackage != this.sPackage && sPackage != "") list :+ SImport(sPackage, sClass) else list
   }
   
@@ -315,6 +327,6 @@ class SClass(_name: String,
     state.map(_.hashCode()).foldLeft(0)((a, b) => 31 * a + b)
   }
 
-  override def toString: String = s"SC: $name(${attributes.map(_.name).mkString(", ")}, $isAbstract, $isInterface)"
+  override def toString: String = s"SC: $name($sPackage, ${attributes.map(_.name).mkString(", ")}, $isAbstract, $isInterface)"
 
 }
diff --git a/src/main/scala/org/rosi_project/model_sync/generator/io/SClassWriter.scala b/src/main/scala/org/rosi_project/model_sync/generator/io/SClassWriter.scala
index 230048131aebe2d78ea9dceec2b2544e3086ff8b..d53950616a86c558aeb2c4b7c3913c1121018b72 100644
--- a/src/main/scala/org/rosi_project/model_sync/generator/io/SClassWriter.scala
+++ b/src/main/scala/org/rosi_project/model_sync/generator/io/SClassWriter.scala
@@ -76,8 +76,8 @@ class SClassWriter(val modelClass: SClass) {
     * optionally a parent class. The parent constructor will be called correctly.
     */
   protected def generateClassFixture: String = {
-    println("**************************************************")
-    var params: List[String] = modelClass.getStructuralFeatures.map(attr => s"var ${attr.name}: ${attr.getType}").toList
+    //println("**************************************************")
+    var params: Seq[String] = modelClass.getStructuralFeatures.map(attr => s"var ${attr.name}: ${attr.getType}").toList
     var baseFixture: String = ""
     var parentConstructorParams: String = ""
     var parentConstructor: String = ""
@@ -94,17 +94,11 @@ class SClassWriter(val modelClass: SClass) {
     }
 
     if (parentConstructorParams != "") {
-      params ::= parentConstructorParams
+      params = params :+ parentConstructorParams
     }
     
     val constructor: String = s"(${params.mkString(", ")})"
     
-    /*println("params: " + params)
-    println("parentConstructorParams: " + parentConstructorParams)
-    println("parentConstructor: " + parentConstructor)
-    println("allInterfaces: " + allInterfaces)
-    println("constructor: " + constructor)*/
-    
     if (modelClass.isInterface) {
       baseFixture = s"trait ${modelClass.getName}"
     } else {
@@ -127,8 +121,8 @@ class SClassWriter(val modelClass: SClass) {
       }
     }
     
-    println("baseFixture: " + baseFixture)
-    println("**************************************************")
+    //println("baseFixture: " + baseFixture)
+    //println("**************************************************")
     baseFixture
   }
 
diff --git a/src/main/scala/org/rosi_project/model_sync/generator/sync/ConstructorTemplate.scala b/src/main/scala/org/rosi_project/model_sync/generator/sync/ConstructorTemplate.scala
index 8a47bd261f5c988efded173791c393528c2e90ab..4fb658a655818e8b81ac8e5b9f53b344fe364149 100644
--- a/src/main/scala/org/rosi_project/model_sync/generator/sync/ConstructorTemplate.scala
+++ b/src/main/scala/org/rosi_project/model_sync/generator/sync/ConstructorTemplate.scala
@@ -41,11 +41,6 @@ class ConstructorTemplate(modelClass: SClass) extends SClass(_name = s"${modelCl
   )
 
   override def getNecessaryImports: Set[SImport] = {
-    println("+++++++++++++++++++++++++")
-    println(modelClass.getUsedTypes.filter(_.getPackage != "").map(elem => SImport(elem.getPackage, elem.getName)))
-    println(super.getNecessaryImports)
-    println(SImport(modelClass.getPackage, modelClass.getName))
-    println("+++++++++++++++++++++++++")
     (modelClass.getUsedTypes.filter(_.getPackage != "").map(elem => SImport(elem.getPackage, elem.getName)) 
       ++ super.getNecessaryImports 
       + SImport(modelClass.getPackage, modelClass.getName))