diff --git a/.idea/misc.xml b/.idea/misc.xml
index 5d19981..ba7052b 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="EntryPointsManager">
-    <entry_points version="2.0" />
-  </component>
   <component name="NullableNotNullManager">
     <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
     <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
@@ -27,17 +24,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectLevelVcsManager" settingsEditedManually="false">
-    <OptionsSetting value="true" id="Add" />
-    <OptionsSetting value="true" id="Remove" />
-    <OptionsSetting value="true" id="Checkout" />
-    <OptionsSetting value="true" id="Update" />
-    <OptionsSetting value="true" id="Status" />
-    <OptionsSetting value="true" id="Edit" />
-    <ConfirmationsSetting value="0" id="Add" />
-    <ConfirmationsSetting value="0" id="Remove" />
-  </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/.idea/modules.xml b/.idea/modules.xml
index 2976bc1..f8a28cc 100644
--- a/.idea/modules.xml
+++ b/.idea/modules.xml
@@ -2,8 +2,11 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/ValidUtil.iml" filepath="$PROJECT_DIR$/.idea/ValidUtil.iml" />
       <module fileurl="file://$PROJECT_DIR$/ValidUtilSample.iml" filepath="$PROJECT_DIR$/ValidUtilSample.iml" />
       <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
+      <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
+      <module fileurl="file://$PROJECT_DIR$/validutils/validutils.iml" filepath="$PROJECT_DIR$/validutils/validutils.iml" />
       <module fileurl="file://$PROJECT_DIR$/validutils/validutils.iml" filepath="$PROJECT_DIR$/validutils/validutils.iml" />
     </modules>
   </component>
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 1ea4bd0..6efcc7c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.android.tools.build:gradle:3.0.0-alpha1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 6bf1f85..6de4738 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Mon Apr 03 12:24:36 IST 2017
+#Sat Jun 03 14:45:19 IST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-milestone-1-all.zip
diff --git a/validutils/src/main/java/thebat/lib/validutil/ValidUtils.java b/validutils/src/main/java/thebat/lib/validutil/ValidUtils.java
index a4975ea..b4fde76 100644
--- a/validutils/src/main/java/thebat/lib/validutil/ValidUtils.java
+++ b/validutils/src/main/java/thebat/lib/validutil/ValidUtils.java
@@ -64,13 +64,18 @@ public static boolean isNetworkAvailable(Context context) {
     public static void showProgressDialog(Context c, Activity a){
 
         View v = a.getLayoutInflater().inflate(R.layout.custom_progress, null);
-        progress= KProgressHUD.create(a)
-                .setCustomView(v)
-                .setCancellable(true)
-                .show();
+        if (progress==null) {
+
+            progress = KProgressHUD.create(a)
+                    .setCustomView(v)
+                    .setCancellable(true)
+                    .show();
+        }
     }
 
     public static void hideProgressDialog(){
-        progress.dismiss();
+        if (progress != null && progress.isShowing()) {
+            progress.dismiss();
+     }
     }
 }