iOS build fails with Expo precompiled modules (EXPO_USE_PRECOMPILED_MODULES=1): 'DatadogSDKReactNative/DatadogSDKReactNative-umbrella.h' file not found in @datadog/mobile-react-native-webview

[vicprz]

Describe the bug

Expo SDK 55+ ships a "precompiled modules" mode (EXPO_USE_PRECOMPILED_MODULES=1), which EAS Build now enables by default server-side (rolled out 2026-06-11). In this mode, Expo's autolinking downgrades every pod whose root spec depends on React-Core to a static library, even when the project uses use_frameworks! :linkage => :static.

This breaks the compilation of DatadogSDKReactNativeWebView in two ways:

1. ios/Sources/RCTDatadogWebViewManager.mm:8 hardcodes a framework-style umbrella import: #import <DatadogSDKReactNative/DatadogSDKReactNative-umbrella.h>
   When DatadogSDKReactNative is built as a static library, no framework umbrella header exists at that path → fatal error: 'DatadogSDKReactNative/DatadogSDKReactNative-umbrella.h' file not found.
2. RCTDatadogWebView.h includes react-native-webview's RNCWebViewImpl.h, whose #import <React/RCTView.h> resolves against React Native 0.83's prebuilt React.xcframework (used in this mode), whose headers are namespaced React_Core/… rather than React/… → fatal error: 'React/RCTView.h' file not found (clang note: did not find header RCTView.h in framework React).

Reproduction steps

1. Create an Expo SDK 55 app (CNG / managed workflow, RN 0.83.x, use_frameworks! :linkage => :static via "ios.useFrameworks": "static" in expo-build-properties).
2. Install @datadog/mobile-react-native@3.5.1 and @datadog/mobile-react-native-webview@3.5.1, plus react-native-webview.
3. Prebuild and build

npx expo prebuild --clean
EXPO_USE_PRECOMPILED_MODULES="1" npx expo run:ios

4. The DatadogSDKReactNativeWebView pod target fails to compile. Without EXPO_USE_PRECOMPILED_MODULES=1, the same project builds fine.

SDK logs

› Compiling @datadog/mobile-react-native-webview Pods/DatadogSDKReactNativeWebView » RCTDatadogWebViewManager.mm

❌  (node_modules/@datadog/mobile-react-native-webview/ios/Sources/RCTDatadogWebViewManager.mm:8:9)

   6 |
   7 | #import <Foundation/Foundation.h>
>  8 | #import <DatadogSDKReactNative/DatadogSDKReactNative-umbrella.h>
     |         ^ 'DatadogSDKReactNative/DatadogSDKReactNative-umbrella.h' file not found
   9 | #import "RCTDatadogWebViewManager.h"
  10 | #import "RCTDatadogWebView.h"
  11 |

› Compiling @datadog/mobile-react-native-webview Pods/DatadogSDKReactNativeWebView » RCTDatadogWebView.mm

❌  (node_modules/react-native-webview/apple/RNCWebViewImpl.h:8:9)

   6 |  */
   7 |
>  8 | #import <React/RCTView.h>
     |         ^ 'React/RCTView.h' file not found
   9 | #import <React/RCTDefines.h>
  10 | #import <WebKit/WKDataDetectorTypes.h>
  11 | #import <WebKit/WebKit.h>

Expected behavior

Build succeed when EXPO_USE_PRECOMPILED_MODULES='1'.
For now, I have manually set EXPO_USE_PRECOMPILED_MODULES='0'. It works, but build times are longer.

Affected SDK versions

3.5.1

Latest working SDK version

N/A

Did you confirm if the latest SDK version fixes the bug?

Yes

Integration Methods

Yarn

React Native Version

0.83.6

Package.json Contents

• react-native 0.83.6
• expo 55.0.26
• react-native-webview 13.16.0
• @datadog/mobile-react-native 3.5.1
• @datadog/mobile-react-native-session-replay 3.5.1
• @datadog/mobile-react-native-webview 3.5.1
• @datadog/mobile-react-navigation 3.5.1
• @datadog/datadog-ci 5.18.0
• expo-datadog 55.0.0

iOS Setup

No response

Android Setup

No response

Device Information

No response

Other relevant information

No response

[cdn34dd]

Hey @vicprz, thanks for reporting the issue, we'll look into this shortly.

[vicprz]

Thanks 🙌 Since yesterday, I’ve noticed that EXPO_USE_PRECOMPILED_MODULES has been enabled on EAS for SDK 55, and both locally and on EAS for SDK 56.
https://docs.expo.dev/guides/prebuilt-expo-modules/