Handle missing keystore

android/app/build.gradle.kts

@@ -46,6 +46,7 @@ android {
     }
 
     signingConfigs {
+        if (keystorePropertiesFile.exists()) {
             create("release") {
                 keyAlias = keystoreProperties["keyAlias"] as String
                 keyPassword = keystoreProperties["keyPassword"] as String
@@ -53,9 +54,12 @@ android {
                 storePassword = keystoreProperties["storePassword"] as String
             }
         }
+    }
     buildTypes {
         release {
+            if (keystorePropertiesFile.exists()) {
                 signingConfig = signingConfigs.getByName("release")
+            }
             isShrinkResources = false
         }
     }