App crashes with Reflect.construct.apply error during Purchases SDK log handler setup (Expo 54, RN 0.81.4, React 19)

[yahavf6]

Checklist:

• I have updated Purchases SDK to the latest version (9.5.1)
• I have read the https://github.com/RevenueCat/react-native-purchases/blob/main/CONTRIBUTING.md
• I have searched the https://community.revenuecat.com
• I have read https://docs.revenuecat.com/
• I have searched for https://github.com/RevenueCat/react-native-purchases/issues

Describe the bug

The app crashes immediately on launch with a Reflect.construct error originating from the Purchases SDK's
error logging mechanism. The crash occurs when the SDK attempts to set up its log handler, specifically
when creating a custom error class for stack trace capture.

1. Environment
   a. Platform: iOS (development simulator)
   b. SDK version: react-native-purchases@9.5.1
   c. OS version: macOS Darwin 24.6.0 (iOS Simulator)
   d. Xcode/Android Studio version: Xcode (version TBD based on macOS 24.6.0)
   e. React Native version: 0.81.4
   f. SDK installation: Package manager (pnpm 10.12.3)
   g. How widespread is the issue: 100% of launches in development environment
   h. IOS: 26.0.1
2. Debug logs that reproduce the issue

  Code: construct.js
    2 | var setPrototypeOf = require("./setPrototypeOf.js");
    3 | function _construct(t, e, r) {
  > 4 |   if (isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
      |                                                                 ^
    5 |   var o = [null];
    6 |   o.push.apply(o, e);
    7 |   var p = new (t.bind.apply(t, o))();

  Call Stack:
    construct (apps/mobile/<native>)
    apply (apps/mobile/<native>)
    _construct
  (node_modules/.pnpm/@babel+runtime@7.28.4/node_modules/@babel/runtime/helpers/construct.js:4:65)
    Wrapper
  (node_modules/.pnpm/@babel+runtime@7.28.4/node_modules/@babel/runtime/helpers/wrapNativeSuper.js:15:23)
    construct (apps/mobile/<native>)
    _callSuper
  (node_modules/.pnpm/@babel+runtime@7.28.4/node_modules/@babel/runtime/helpers/callSuper.js:5:108)
    NamelessError (node_modules/.pnpm/@expo+metro-runtime@6.1.2_expo@54.0.12_react-dom@19.1.0_react-native@
  0.81.4_react@19.1.0/node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:102:20)
    captureCurrentStack (node_modules/.pnpm/@expo+metro-runtime@6.1.2_expo@54.0.12_react-dom@19.1.0_react-n
  ative@0.81.4_react@19.1.0/node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:106:27)
    HMRClient.log (node_modules/.pnpm/@expo+metro-runtime@6.1.2_expo@54.0.12_react-dom@19.1.0_react-native@
  0.81.4_react@19.1.0/node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:39:79)
    console.level (node_modules/.pnpm/react-native@0.81.4_@babel+core@7.28.4_@types+react@19.1.17_react@19.
  1.0/node_modules/react-native/Libraries/Core/setUpDeveloperTools.js:41:24)
    setLogHandler$argument_0 (node_modules/.pnpm/react-native-purchases@9.5.1_react-native-web@0.21.1_react
  -native@0.81.4_react@19.1.0/node_modules/react-native-purchases/dist/purchases.js:114:38)
    eventEmitter.addListener$argument_1 (node_modules/.pnpm/react-native-purchases@9.5.1_react-native-web@0
  .21.1_react-native@0.81.4_react@19.1.0/node_modules/react-native-purchases/dist/purchases.js:72:21)

3. Steps to reproduce
   - Install react-native-purchases@9.5.1 in an Expo 54.0.11 project with React Native 0.81.4
   - Import and initialize the Purchases SDK
   - Launch the app in development mode with Expo Metro bundler
   - Expected behavior: App launches successfully with Purchases SDK initialized
   - Actual behavior: App crashes immediately with Reflect.construct error during SDK initialization
4. Other information
   - The error originates from purchases.js:114:38 when setting up the log handler
   - This appears to be related to Babel runtime helpers (@babel/runtime@7.28.4) and how the SDK creates
   custom error classes for logging
   - The crash happens before any SDK methods are called, suggesting it's an initialization/setup issue
   - Environment: Expo 54.0.11, React 19.1.0, React Native 0.81.4
   - Package manager: pnpm 10.12.3
   - Node.js: v22.19.0
   - The issue may be related to the interaction between:
   • Expo Metro runtime's error capturing mechanism
   • react-native-purchases' custom error logging
   • Babel's native super class wrapping helpers
     - This appears to be a compatibility issue with the newer Expo/React Native/React versions

Additional context
This is a monorepo project using Turborepo. The mobile app is an Expo-managed workflow project. The error
prevents the SDK from initializing entirely, making the app unusable in development.

[RCGitBot]

👀 We've just linked this issue to our internal tracker and notified the team. Thank you for reporting, we're checking this out!

[joshdholtz]

@yahavf6 Thanks for reporting 🙏 The team is looking into now and we will hit you up if we have any further questions!

[niek-dewit]

I am experiencing the same issue.

Code: construct.js
  2 | var setPrototypeOf = require("./setPrototypeOf.js");
  3 | function _construct(t, e, r) {
> 4 |   if (isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
    |                                                                 ^
  5 |   var o = [null];
  6 |   o.push.apply(o, e);
  7 |   var p = new (t.bind.apply(t, o))();
Call Stack
  construct (<native>)
  apply (<native>)
  _construct (node_modules/@babel/runtime/helpers/construct.js:4:65)
  Wrapper (node_modules/@babel/runtime/helpers/wrapNativeSuper.js:15:23)
  construct (<native>)
  _callSuper (node_modules/@babel/runtime/helpers/callSuper.js:5:108)
  NamelessError (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:102:20)
  captureCurrentStack (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:106:27)
  HMRClient.log (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:39:79)
  console.level (node_modules/react-native/Libraries/Core/setUpDeveloperTools.js:41:24)
  apply (<native>)
  i (node_modules/@logrocket/react-native/dist/build.js:1:100406)
  setLogHandler$argument_0 (node_modules/react-native-purchases/dist/purchases.js:114:38)
  eventEmitter.addListener$argument_1 (node_modules/react-native-purchases/dist/purchases.js:72:21)
  apply (<native>)
  emit (node_modules/react-native/Libraries/vendor/emitter/EventEmitter.js:130:36)
  apply (<native>)
  <anonymous> (node_modules/@babel/runtime/helpers/superPropGet.js:6:19)
  RCTDeviceEventEmitterImpl#emit (node_modules/react-native/Libraries/EventEmitter/RCTDeviceEventEmitter.js:33:5)

• Environment: Expo 54.0.10, React 19.1.0, React Native 0.81.4
• Package manager: npm@10.9.2
• Node.js: node@v22.15.1

Although I believe the specific error code location is not related to this problem.

Code: construct.js
  2 | var setPrototypeOf = require("./setPrototypeOf.js");
  3 | function _construct(t, e, r) {
> 4 |   if (isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
    |                                                                 ^
  5 |   var o = [null];
  6 |   o.push.apply(o, e);
  7 |   var p = new (t.bind.apply(t, o))();

After temporarily disabling the Purchases SDK. For an unrelated different error in my app, I get the same code location strace. I am not fully understanding this yet, but I expect this "code location trace"-issue to be some quirk with the latest version of Expo/React native?

 ERROR  Cannot set prop 'borderRadius' on view 'class expo.modules.image.ExpoImageViewWrapper'
→ Caused by: com.facebook.react.bridge.UnexpectedNativeTypeException: Value for borderRadius cannot be cast from String to double 

Code: construct.js
  2 | var setPrototypeOf = require("./setPrototypeOf.js");
  3 | function _construct(t, e, r) {
> 4 |   if (isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
    |                                                                 ^
  5 |   var o = [null];
  6 |   o.push.apply(o, e);
  7 |   var p = new (t.bind.apply(t, o))();
Call Stack
  construct (<native>)
  apply (<native>)
  _construct (node_modules/@babel/runtime/helpers/construct.js:4:65)
  Wrapper (node_modules/@babel/runtime/helpers/wrapNativeSuper.js:15:23)
  construct (<native>)
  _callSuper (node_modules/@babel/runtime/helpers/callSuper.js:5:108)
  NamelessError (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:102:20)
  captureCurrentStack (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:106:27)
  HMRClient.log (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:39:79)
  console.level (node_modules/react-native/Libraries/Core/setUpDeveloperTools.js:41:24)
  NativeJSLogger.addListener$argument_1 (node_modules/expo-modules-core/src/sweet/setUpJsLogger.fx.ts:46:22)

[aytaceminoglu]

I am experiencing the same issue.

Code: construct.js
  2 | var setPrototypeOf = require("./setPrototypeOf.js");
  3 | function _construct(t, e, r) {
> 4 |   if (isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
    |                                                                 ^
  5 |   var o = [null];
  6 |   o.push.apply(o, e);
  7 |   var p = new (t.bind.apply(t, o))();
Call Stack
  construct (<native>)
  apply (<native>)
  _construct (node_modules/@babel/runtime/helpers/construct.js:4:65)
  Wrapper (node_modules/@babel/runtime/helpers/wrapNativeSuper.js:15:23)
  construct (<native>)
  _callSuper (node_modules/@babel/runtime/helpers/callSuper.js:5:108)
  NamelessError (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:102:20)
  captureCurrentStack (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:106:27)
  HMRClient.log (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:39:79)
  console.level (node_modules/react-native/Libraries/Core/setUpDeveloperTools.js:41:24)
  apply (<native>)
  i (node_modules/@logrocket/react-native/dist/build.js:1:100406)
  setLogHandler$argument_0 (node_modules/react-native-purchases/dist/purchases.js:114:38)
  eventEmitter.addListener$argument_1 (node_modules/react-native-purchases/dist/purchases.js:72:21)
  apply (<native>)
  emit (node_modules/react-native/Libraries/vendor/emitter/EventEmitter.js:130:36)
  apply (<native>)
  <anonymous> (node_modules/@babel/runtime/helpers/superPropGet.js:6:19)
  RCTDeviceEventEmitterImpl#emit (node_modules/react-native/Libraries/EventEmitter/RCTDeviceEventEmitter.js:33:5)

• Environment: Expo 54.0.10, React 19.1.0, React Native 0.81.4
• Package manager: npm@10.9.2
• Node.js: node@v22.15.1

Although I believe the specific error code location is not related to this problem.

Code: construct.js
  2 | var setPrototypeOf = require("./setPrototypeOf.js");
  3 | function _construct(t, e, r) {
> 4 |   if (isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
    |                                                                 ^
  5 |   var o = [null];
  6 |   o.push.apply(o, e);
  7 |   var p = new (t.bind.apply(t, o))();

After temporarily disabling the Purchases SDK. For an unrelated different error in my app, I get the same code location strace. I am not fully understanding this yet, but I expect this "code location trace"-issue to be some quirk with the latest version of Expo/React native?

 ERROR  Cannot set prop 'borderRadius' on view 'class expo.modules.image.ExpoImageViewWrapper'
→ Caused by: com.facebook.react.bridge.UnexpectedNativeTypeException: Value for borderRadius cannot be cast from String to double 

Code: construct.js
  2 | var setPrototypeOf = require("./setPrototypeOf.js");
  3 | function _construct(t, e, r) {
> 4 |   if (isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
    |                                                                 ^
  5 |   var o = [null];
  6 |   o.push.apply(o, e);
  7 |   var p = new (t.bind.apply(t, o))();
Call Stack
  construct (<native>)
  apply (<native>)
  _construct (node_modules/@babel/runtime/helpers/construct.js:4:65)
  Wrapper (node_modules/@babel/runtime/helpers/wrapNativeSuper.js:15:23)
  construct (<native>)
  _callSuper (node_modules/@babel/runtime/helpers/callSuper.js:5:108)
  NamelessError (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:102:20)
  captureCurrentStack (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:106:27)
  HMRClient.log (node_modules/@expo/metro-runtime/src/metroServerLogs.native.ts:39:79)
  console.level (node_modules/react-native/Libraries/Core/setUpDeveloperTools.js:41:24)
  NativeJSLogger.addListener$argument_1 (node_modules/expo-modules-core/src/sweet/setUpJsLogger.fx.ts:46:22)

same here