diff --git a/.gitignore b/.gitignore
index ca9dfff2..7c701c49 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,10 +2,8 @@ V2rayNG/app/src/main/res/layout/activity_inapp_buy.xml
 V2rayNG/app/src/main/assets/geoip.dat
 V2rayNG/app/src/main/assets/geosite.dat
 V2rayNG/app/src/main/java/com/v2ray/ang/InappBuyActivity.java
-V2rayNG/gradle/wrapper/gradle-wrapper.properties
-V2rayNG/gradle/wrapper/gradle-wrapper.properties
 *.dat
 *.jks
-V2rayNG/gradle/wrapper/gradle-wrapper.properties
-V2rayNG/gradle/wrapper/gradle-wrapper.properties
-V2rayNG/app/release/output.json
\ No newline at end of file
+V2rayNG/app/release/output.json
+.idea/
+.gradle/
\ No newline at end of file
diff --git a/V2rayNG/app/build.gradle b/V2rayNG/app/build.gradle
index 06356c83..b9589f12 100644
--- a/V2rayNG/app/build.gradle
+++ b/V2rayNG/app/build.gradle
@@ -20,34 +20,17 @@ android {
         versionName "1.0.2"
     }
 
-    signingConfigs {
-        release {
-            storeFile file("../key.jks")
-            keyAlias 'ang'
-            keyPassword '123456'
-            storePassword '123456'
-        }
-        debug {
-            storeFile file("../key.jks")
-            keyAlias 'ang'
-            keyPassword '123456'
-            storePassword '123456'
-        }
-    }
-
     buildTypes {
         release {
             minifyEnabled false
             zipAlignEnabled false
             shrinkResources false
-            signingConfig signingConfigs.release
 //            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
         debug {
             minifyEnabled false
             zipAlignEnabled false
             shrinkResources false
-            signingConfig signingConfigs.release
         }
     }
 
@@ -131,4 +114,4 @@ repositories {
     flatDir {
         dirs 'libs'
     }
-}
\ No newline at end of file
+}
diff --git a/V2rayNG/gradle/wrapper/gradle-wrapper.properties b/V2rayNG/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..845192ee
--- /dev/null
+++ b/V2rayNG/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Tue Feb 25 12:40:41 CST 2020
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5.1-all.zip