diff --git a/build.gradle b/build.gradle
index f090704..b93e679 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ apply plugin: 'eclipse'
 sourceCompatibility = '1.6'
 targetCompatibility = '1.6'
 
-version = '0.3.0'
+version = '0.4.0'
 
 repositories {
     mavenCentral()
@@ -36,6 +36,7 @@ jar {
                         + " minecraft_server.1.10.2.jar"
                         + " minecraft_server.1.11.jar"
                         + " minecraft_server.1.11.2.jar"
+                        + " minecraft_server.1.12.jar"
         )
     }
 }
diff --git a/src/main/java/com/simon816/sponge/bootstrap/Bootstrap.java b/src/main/java/com/simon816/sponge/bootstrap/Bootstrap.java
index 40b0937..e97d66a 100644
--- a/src/main/java/com/simon816/sponge/bootstrap/Bootstrap.java
+++ b/src/main/java/com/simon816/sponge/bootstrap/Bootstrap.java
@@ -43,15 +43,17 @@ public static void main(String[] args) {
             try {
                 Class.forName("net.minecraft.launchwrapper.Launch");
                 logger.info("Found launch wrapper, continuing");
-                findAndLoadJars();
-                load(args);
             } catch (ClassNotFoundException e1) {
                 System.err.println("Failed to load Launch class");
+                e1.printStackTrace();
                 System.exit(1);
             } catch (NoClassDefFoundError e2) {
                 System.err.println("Failed to load Launch class");
+                e2.printStackTrace();
                 System.exit(1);
             }
+            findAndLoadJars();
+            load(args);
         }
     }
 
@@ -96,7 +98,7 @@ public boolean accept(File pathname) {
     }
 
     static boolean supportedVersion(String fn) {
-        return fn.contains("1.8.9") || fn.contains("1.10.2") || fn.contains("1.11");
+        return fn.contains("1.8.9") || fn.contains("1.10.2") || fn.contains("1.11") || fn.contains("1.12");
     }
 
     private static File findJar(File directory, String jarName, FileFilter filter) {