diff --git a/project.properties b/project.properties
index 0c9830a..a3ee5ab 100644
--- a/project.properties
+++ b/project.properties
@@ -11,4 +11,4 @@
 #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
 
 # Project target.
-target=Google Inc.:Google APIs:17
+target=android-17
diff --git a/src/org/traccar/client/Connection.java b/src/org/traccar/client/Connection.java
index 0d4abd8..a2a3c4b 100644
--- a/src/org/traccar/client/Connection.java
+++ b/src/org/traccar/client/Connection.java
@@ -83,7 +83,7 @@ public class Connection implements Closeable {
             }
 
             @Override
-            protected void onCancelled(Boolean result) {
+            protected void onCancelled() {
                 if (!closed) {
                     busy = false;
                     handler.onConnected(false);
@@ -120,7 +120,7 @@ public class Connection implements Closeable {
             }
 
             @Override
-            protected void onCancelled(Boolean result) {
+            protected void onCancelled() {
                 if (!closed) {
                     busy = false;
                     handler.onSent(false);