diff --git a/.gitignore b/.gitignore
index f453d54a..4c0980c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,7 @@
-SWADroid/build/
-SWADroid/build.xml
-SWADroid/dist/
-SWADroid/manifest.mf
-SWADroid/nbproject/
+SWADroid/assets/
+SWADroid/bin/
+SWADroid/gen/
+SWADroid/default.properties
+SWADroid/.classpath
+SWADroid/.project
+SWADroid/.settings/
diff --git a/SWADroid/src/es/ugr/swad/swadroid/R.java b/SWADroid/src/es/ugr/swad/swadroid/R.java
deleted file mode 100644
index c08f51c7..00000000
--- a/SWADroid/src/es/ugr/swad/swadroid/R.java
+++ /dev/null
@@ -1,55 +0,0 @@
-/* AUTO-GENERATED FILE.  DO NOT MODIFY.
- *
- * This class was automatically generated by the
- * aapt tool from the resource data it found.  It
- * should not be modified by hand.
- */
-
-package es.ugr.swad.swadroid;
-
-public final class R {
-    public static final class attr {
-    }
-    public static final class drawable {
-        public static final int erroricon=0x7f020000;
-        public static final int swadroid=0x7f020001;
-    }
-    public static final class id {
-        public static final int functionsList=0x7f070000;
-        public static final int functions_menu=0x7f070001;
-        public static final int login_menu=0x7f070002;
-        public static final int preferences_menu=0x7f070003;
-    }
-    public static final class layout {
-        public static final int main=0x7f030000;
-    }
-    public static final class menu {
-        public static final int menu=0x7f060000;
-    }
-    public static final class string {
-        public static final int app_name=0x7f050000;
-        public static final int close_dialog=0x7f050003;
-        public static final int errorMsgLaunchingActivity=0x7f050014;
-        public static final int functionsTitle_menu=0x7f05000f;
-        public static final int loginModuleLabel=0x7f050001;
-        public static final int loginProgressDescription=0x7f050013;
-        public static final int loginProgressTitle=0x7f050012;
-        public static final int loginTitle_menu=0x7f050011;
-        public static final int preferencesTitle_menu=0x7f050010;
-        public static final int saveMsg_preferences=0x7f05000c;
-        public static final int saveSummary_preferences=0x7f05000d;
-        public static final int saveTitle_preferences=0x7f05000e;
-        public static final int set_preferences=0x7f050004;
-        public static final int title_error_dialog=0x7f050002;
-        public static final int userIDName_preferences=0x7f050006;
-        public static final int userIDSummary_preferences=0x7f050007;
-        public static final int userIDTitle_preferences=0x7f050008;
-        public static final int userPasswordName_preferences=0x7f050009;
-        public static final int userPasswordSummary_preferences=0x7f05000a;
-        public static final int userPasswordTitle_preferences=0x7f05000b;
-        public static final int user_preferences=0x7f050005;
-    }
-    public static final class xml {
-        public static final int preferences=0x7f040000;
-    }
-}
diff --git a/SWADroid/src/es/ugr/swad/swadroid/modules/Login.java b/SWADroid/src/es/ugr/swad/swadroid/modules/Login.java
index 1e6b1ad9..9a9ba842 100644
--- a/SWADroid/src/es/ugr/swad/swadroid/modules/Login.java
+++ b/SWADroid/src/es/ugr/swad/swadroid/modules/Login.java
@@ -134,7 +134,7 @@ public class Login extends Module {
                 //Sends webservice request
                 requestService();
                 /**
-                 * If an exception occures, capture and points exception pointer
+                 * If an exception occurs, capture and points exception pointer
                  * to it.
                  */
             } catch (SoapFault ex) {
@@ -156,7 +156,7 @@ public class Login extends Module {
             
             if(e != null) {
                 /**
-                 * If an exception has occured, shows error message according to
+                 * If an exception has occurred, shows error message according to
                  * exception type.
                  */
                 if(e instanceof SoapFault) {
diff --git a/SWADroid/src/es/ugr/swad/swadroid/ssl/UntrustedHostnameVerifier.java b/SWADroid/src/es/ugr/swad/swadroid/ssl/UntrustedHostnameVerifier.java
index 2c802d19..9571f860 100644
--- a/SWADroid/src/es/ugr/swad/swadroid/ssl/UntrustedHostnameVerifier.java
+++ b/SWADroid/src/es/ugr/swad/swadroid/ssl/UntrustedHostnameVerifier.java
@@ -33,7 +33,6 @@ public class UntrustedHostnameVerifier implements HostnameVerifier{
      * @param session SSL session.
      * @return Verification result.
      */
-    @Override
     public boolean verify(String hostname, SSLSession session) {
            return true;
     }
diff --git a/SWADroid/src/es/ugr/swad/swadroid/ssl/UntrustedTrustManager.java b/SWADroid/src/es/ugr/swad/swadroid/ssl/UntrustedTrustManager.java
index 2ed193b3..c5f94138 100644
--- a/SWADroid/src/es/ugr/swad/swadroid/ssl/UntrustedTrustManager.java
+++ b/SWADroid/src/es/ugr/swad/swadroid/ssl/UntrustedTrustManager.java
@@ -35,7 +35,6 @@ public class UntrustedTrustManager implements X509TrustManager {
      * @param chain Certificate.
      * @param authType Authentication type.
      */
-    @Override
     public void checkClientTrusted(X509Certificate[] chain, String authType) {
     }
 
@@ -47,7 +46,6 @@ public class UntrustedTrustManager implements X509TrustManager {
      * @param chain Certificate.
      * @param authType Authentication type.
      */
-    @Override
     public void checkServerTrusted(X509Certificate[] chain, String authType) {
     }
 
@@ -56,7 +54,6 @@ public class UntrustedTrustManager implements X509TrustManager {
      * for authenticating peers.
      * @return Array of certificate authority certificates.
      */
-    @Override
     public X509Certificate[] getAcceptedIssuers() {
            return null;
     }