Merge branch 'fix_android' into 'development'

fix android

See merge request Cloud_Solution/diplomatic-quarter!233

android/app/build.gradle

@@ -82,6 +82,7 @@ dependencies {
     implementation 'com.google.guava:guava:27.0.1-android'
     // Dependency on local binaries
     implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.google.code.gson:gson:2.8.6'
 
     // Dependency on a remote binary
 //    implementation 'com.example.android:app-magic:12.3'