diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-javadoc.jar b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-javadoc.jar
new file mode 100644
index 0000000..b39e094
Binary files /dev/null and b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-javadoc.jar differ
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-javadoc.jar.md5 b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-javadoc.jar.md5
new file mode 100644
index 0000000..d5fd28c
--- /dev/null
+++ b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-javadoc.jar.md5
@@ -0,0 +1 @@
+583e2e35ffb43e81149307db7ab2944f
\ No newline at end of file
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-javadoc.jar.sha1 b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-javadoc.jar.sha1
new file mode 100644
index 0000000..e95cb59
--- /dev/null
+++ b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-javadoc.jar.sha1
@@ -0,0 +1 @@
+cf39f4aea2480d6dbaf93f654db79fdce5047ed7
\ No newline at end of file
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-sources.jar b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-sources.jar
new file mode 100644
index 0000000..6342545
Binary files /dev/null and b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-sources.jar differ
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-sources.jar.md5 b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-sources.jar.md5
new file mode 100644
index 0000000..2bfce7e
--- /dev/null
+++ b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-sources.jar.md5
@@ -0,0 +1 @@
+a78e47a97a3027081e557dea1918078a
\ No newline at end of file
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-sources.jar.sha1 b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-sources.jar.sha1
new file mode 100644
index 0000000..3a7d60e
--- /dev/null
+++ b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0-sources.jar.sha1
@@ -0,0 +1 @@
+217cd2853244527e5737941285813c9c0266d98a
\ No newline at end of file
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.jar b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.jar
new file mode 100644
index 0000000..7c11679
Binary files /dev/null and b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.jar differ
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.jar.md5 b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.jar.md5
new file mode 100644
index 0000000..957af01
--- /dev/null
+++ b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.jar.md5
@@ -0,0 +1 @@
+0e026d59d71b50b8c40013ac8c3f9af1
\ No newline at end of file
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.jar.sha1 b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.jar.sha1
new file mode 100644
index 0000000..e88877d
--- /dev/null
+++ b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.jar.sha1
@@ -0,0 +1 @@
+5bcfa0bd6adadc8ccf317a7a1d9acaa01f635631
\ No newline at end of file
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.pom b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.pom
new file mode 100644
index 0000000..070ef18
--- /dev/null
+++ b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.pom
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>neuralnetwork</groupId>
+    <artifactId>neural-network-repo</artifactId>
+    <version>2.0</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>2.3.2</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.1</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.jetbrains</groupId>
+            <artifactId>annotations</artifactId>
+            <version>20.1.0</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <github.repo>file:///C:/Users/Lena Papailiou/git/neuralnetwork/</github.repo>
+    </properties>
+
+    <distributionManagement>
+        <repository>
+            <id>neural-network-repo</id>
+            <url>${github.repo}</url>
+        </repository>
+    </distributionManagement>
+
+
+</project>
\ No newline at end of file
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.pom.md5 b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.pom.md5
new file mode 100644
index 0000000..53b2a75
--- /dev/null
+++ b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.pom.md5
@@ -0,0 +1 @@
+3f91edf0576b04ced30b72483f0d4257
\ No newline at end of file
diff --git a/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.pom.sha1 b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.pom.sha1
new file mode 100644
index 0000000..b9e02fe
--- /dev/null
+++ b/neuralnetwork/neural-network-repo/2.0/neural-network-repo-2.0.pom.sha1
@@ -0,0 +1 @@
+4963ac27d90f375ecdb0acd75b6f0ed6b223ad42
\ No newline at end of file
diff --git a/neuralnetwork/neural-network-repo/maven-metadata.xml b/neuralnetwork/neural-network-repo/maven-metadata.xml
index 3d467dc..d98858e 100644
--- a/neuralnetwork/neural-network-repo/maven-metadata.xml
+++ b/neuralnetwork/neural-network-repo/maven-metadata.xml
@@ -3,7 +3,7 @@
   <groupId>neuralnetwork</groupId>
   <artifactId>neural-network-repo</artifactId>
   <versioning>
-    <release>1.15</release>
+    <release>2.0</release>
     <versions>
       <version>1.2</version>
       <version>1.3</version>
@@ -19,7 +19,8 @@
       <version>1.13</version>
       <version>1.14</version>
       <version>1.15</version>
+      <version>2.0</version>
     </versions>
-    <lastUpdated>20210126201635</lastUpdated>
+    <lastUpdated>20210126210850</lastUpdated>
   </versioning>
 </metadata>
diff --git a/neuralnetwork/neural-network-repo/maven-metadata.xml.md5 b/neuralnetwork/neural-network-repo/maven-metadata.xml.md5
index 70976bd..ad71b34 100644
--- a/neuralnetwork/neural-network-repo/maven-metadata.xml.md5
+++ b/neuralnetwork/neural-network-repo/maven-metadata.xml.md5
@@ -1 +1 @@
-431685be8350b5eef99f8d94caae586e
\ No newline at end of file
+115c72b456cb936252df425e264ca9c1
\ No newline at end of file
diff --git a/neuralnetwork/neural-network-repo/maven-metadata.xml.sha1 b/neuralnetwork/neural-network-repo/maven-metadata.xml.sha1
index bcf4865..11b37a1 100644
--- a/neuralnetwork/neural-network-repo/maven-metadata.xml.sha1
+++ b/neuralnetwork/neural-network-repo/maven-metadata.xml.sha1
@@ -1 +1 @@
-c347756204a22da8e36d5d278b388ed2ba55c234
\ No newline at end of file
+8c2b61b6cca06a8e179062ea92f67847e7545497
\ No newline at end of file
diff --git a/src/main/java/geneticalgorithm/GeneticAlgorithmBatch.java b/src/main/java/geneticalgorithm/GeneticAlgorithmBatch.java
index 835c60b..36357f5 100644
--- a/src/main/java/geneticalgorithm/GeneticAlgorithmBatch.java
+++ b/src/main/java/geneticalgorithm/GeneticAlgorithmBatch.java
@@ -42,7 +42,7 @@ public GeneticAlgorithmBatch(@NotNull Class<T> templateGeneticAlgorithmObject, @
         try {
             geneticAlgorithmObjectConstructor = templateGeneticAlgorithmObject.getDeclaredConstructor(NeuralNetwork.class);
         } catch (NoSuchMethodException e) {
-            throw new IllegalArgumentException("Wrong generic class given. Must have constructor with argument NeuralNetwork!", e);
+            throw new IllegalArgumentException("Wrong class definition. Must have constructor with single argument NeuralNetwork!", e);
         }
         this.seedNeuralNetwork = seedNeuralNetwork;
         this.populationSize = populationSize;