WT1.1.0+42 error fixes

android/app/build.gradle

@@ -52,14 +52,14 @@ android {
         multiDexEnabled true
     }
 
-    /*signingConfigs {
+    signingConfigs {
         release {
             keyAlias keystoreProperties['keyAlias']
             keyPassword keystoreProperties['keyPassword']
             storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
             storePassword keystoreProperties['storePassword']
         }
-    }*/
+    }
 
     buildTypes {
         release {
@@ -79,3 +79,4 @@ dependencies {
     implementation 'com.facebook.android:facebook-login:5.15.3'
     implementation 'com.android.support:multidex:1.0.3'
 }
+sourceCompatibility = '1.8'

android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip