Purchase Package Error in React Native

When attempting to make a purchase using RevenueCat's purchasePackage method, the app throws a "Malformed calls from JS" error with a TypeError indicating properties are not configurable.

Environment

• React Native version: 0.74.5
• RevenueCat SDK version: 8.2.4, 8.2.5 also show this error
• Expo version (if applicable): ~51.0.38
• Platform: iOS
• Device: iPhone 14 Pro and iOS Simulator
• OS version: iOS 17.1.1

Steps to Reproduce

1. Select a package for purchase
2. Call Purchases.purchasePackage(package)
3. Error occurs during the purchase process

Code example

typescript
try {
const purchaseResult = await RevenueCat.purchasePackage(selectedPackage);
return purchaseResult;
} catch (error) {
console.log("Error during purchase:", error);
throw error;
}

Error Log

iOS Bundled 277ms node_modules/expo-router/entry.js (1 module)
 ERROR  Error: Exception in HostFunction: Malformed calls from JS: field sizes are different.

[[9,77,77,79,79,56],[7,0,1,1,1,3],[[500,100,1730706566431,false],[500],["{\"type\":\"log\",\"level\":\"error\",\"mode\":\"BRIDGE\",\"data\":[\"Failed to purchase package:\",\"[TypeError: property is not configurable]\"]}",1],["{\"type\":\"log\",\"level\":\"log\",\"mode\":\"BRIDGE\",\"data\":[\"Error during purchase:\",\"[TypeError: property is not configurable]\"]}",1],[2967,"RCTRawText",1,{"text":""}]],2569]

This error is located at:
    in RCTText (created by Text)
    in Text (created by Icon)
    in Icon (created by Icon)
    in Icon
    in NativeWind.Icon
    in NativeWind.NoName
    in Unknown (created by MenuItem)
    in RCTView (created by View)
    in View
    in NativeWind.View
    in NativeWind.NoName
    in Unknown (created by MenuItem)
    in RCTView (created by View)
    in View
    in NativeWind.View
    in NativeWind.NoName
    in Unknown (created by SlotClone)
    in SlotClone (created by Slot)
    in Slot
    in ExpoRouterLink (created by MenuItem)
    in RCTView (created by View)
    in View (created by Pressable)
    in Pressable (created by Pressable)
    in MenuItem
    in RCTView (created by View)
    in View
    in NativeWind.View
    in RCTView (created by View)
    in View
    in NativeWind.View
    in NativeWind.NoName
    in Unknown
    in RCTView (created by View)
    in View
    in NativeWind.View
    in NativeWind.NoName
    in Unknown
    in RCTScrollContentView (created by ScrollView)
    in RCTScrollView (created by ScrollView)
    in ScrollView (created by ScrollView)
    in ScrollView
    in NativeWind.ScrollView
    in NativeWind.NoName
    in Unknown
    in RCTView (created by View)
    in View
    in NativeWind.View
    in NativeWind.NoName
    in Unknown
    in Unknown
    in Unknown (created by Route(profile))
    in Suspense (created by Route(profile))
    in Route (created by Route(profile))
    in Route(profile) (created by SceneView)
    in StaticContainer
    in EnsureSingleNavigator (created by SceneView)
    in SceneView (created by SceneView)
    in RCTView (created by View)
    in View (created by DebugContainer)
    in RCTView (created by View)
    in View (created by AppContainer)
    in RCTView (created by View)
    in View (created by AppContainer)
    in AppContainer (created by DebugContainer)
    in DebugContainer (created by MaybeNestedStack)
    in MaybeNestedStack (created by SceneView)
    in RCTView (created by View)
    in View (created by SceneView)
    in RNSModalScreen (created by Animated(Anonymous))
    in Animated(Anonymous) (created by InnerScreen)
    in Suspender (created by Freeze)
    in Suspense (created by Freeze)
    in Freeze (created by DelayedFreeze)
    in DelayedFreeze (created by InnerScreen)
    in InnerScreen (created by Screen)
    in Screen (created by SceneView)
    in SceneView (created by NativeStackViewInner)

• I have updated Purchases SDK to the latest version
• I have read the Contribution Guidelines
• I have searched the Community
• I have read docs.revenuecat.com
• I have searched for existing Github issues

Start by reproducing the failure at the Purchases.purchasePackage entry point on the listed React Native, RevenueCat, Expo, and iOS versions. Trace the purchase call through the React Native bridge and verify that the purchase completes without the “Malformed calls from JS” or “property is not configurable” errors.