Troubleshooting Cannot Compile For Physical Device On Xcode 26 Beta 5

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Hey guys! Running into build issues with Xcode can be super frustrating, especially when you're trying to test on a physical device. This article dives into a specific problem encountered while using Xcode 26 Beta 5 with the RevenueCat SDK. We'll break down the issue, analyze the error logs, and explore potential solutions to get you back on track. So, if you're facing the dreaded "Cannot Compile for Physical Device" error, you're in the right place! Let’s get this sorted out!

Understanding the Bug

So, what's the deal? The main issue reported is the inability to compile for physical devices while using Xcode 26 Beta 5. The build process works perfectly fine for simulators, but when it comes to deploying to an actual device, things fall apart. This is a major roadblock, especially when you need to test real-world scenarios and device-specific features. The developer encountering this issue is using RevenueCat, a popular subscription management SDK, which adds another layer of complexity. Understanding the root cause is the first step to resolving this, so let’s dig deeper into the specifics.

The Specifics: Platform, SDK, and Environment

To really get a handle on this issue, let's break down the environment where it's happening. The problem is occurring on iOS using the RevenueCat SDK version 5.34.0. StoreKit 2, which is the default for RevenueCat versions 5.0.0 and later, is in use. The operating system in question is iOS 26b6, and the Xcode version is Xcode 26b5. The target device is a physical device, not a simulator, and the environment is set to Sandbox. This means we're dealing with a development or testing environment, not a production one. Knowing these details helps narrow down the potential causes and focus our troubleshooting efforts. It’s like having a detailed map to navigate the debugging landscape!

Issue Widespread

One of the most concerning aspects of this bug is its widespread nature. The developer reports that the issue occurs 100% of the time. This indicates that it's not an isolated incident or a sporadic glitch. Instead, it suggests a systemic problem, possibly related to the interaction between Xcode 26 Beta 5, the RevenueCat SDK, and physical devices. When a bug is consistently reproducible, it's easier to identify and address, but it also means more users are likely affected. This highlights the importance of finding a solution quickly.

Diving into the Debug Logs

The debug logs are our best friend when things go wrong. They give us a peek under the hood and show us exactly what's happening during the build process. In this case, the logs provide a wealth of information, pinpointing the problem to the linking stage. Let's break down the relevant parts of the log:

Showing All Errors Only
Ld /Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Intermediates.noindex/RevenueCat.build/Debug-watchos/RevenueCat.build/Objects-normal-asan/armv7k/Binary/RevenueCat.o normal armv7k (in target 'RevenueCat' from project 'RevenueCat')
    cd /Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/SourcePackages/checkouts/purchases-ios
    /Applications/Xcode-26.0.0-beta.5.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -Xlinker -reproducible -target armv7k-apple-watchos6.2 -r -isysroot /Applications/Xcode-26.0.0-beta.5.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk -O0 -w -L/Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-watchos -L/Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Products/Debug-watchos -L/Applications/Xcode-26.0.0-beta.5.app/Contents/Developer/Platforms/WatchOS.platform/Developer/usr/lib -F/Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Intermediates.noindex/EagerLinkingTBDs/Debug-watchos -F/Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Products/Debug-watchos -iframework /Applications/Xcode-26.0.0-beta.5.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Frameworks -iframework /Applications/Xcode-26.0.0-beta.5.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS26.0.sdk/Developer/Library/Frameworks -filelist /Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Intermediates.noindex/RevenueCat.build/Debug-watchos/RevenueCat.build/Objects-normal/armv7k/RevenueCat.LinkFileList -nostdlib -Xlinker -object_path_lto -Xlinker /Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Intermediates.noindex/RevenueCat.build/Debug-watchos/RevenueCat.build/Objects-normal-asan/armv7k/RevenueCat_lto.o -rdynamic -Xlinker -no_deduplicate -Xlinker -debug_variant -Xlinker -dependency_info -Xlinker /Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Intermediates.noindex/RevenueCat.build/Debug-watchos/RevenueCat.build/Objects-normal-asan/armv7k/RevenueCat_dependency_info.dat -fobjc-link-runtime -fsanitize\=address -L/Applications/Xcode-26.0.0-beta.5.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/watchos -L/usr/lib/swift -Xlinker -add_ast_path -Xlinker /Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Intermediates.noindex/RevenueCat.build/Debug-watchos/RevenueCat.build/Objects-normal-asan/armv7k/RevenueCat.swiftmodule @/Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Intermediates.noindex/RevenueCat.build/Debug-watchos/RevenueCat.build/Objects-normal-asan/armv7k/RevenueCat-linker-args.resp -o /Users/willbishop/Library/Developer/Xcode/DerivedData/Pestle-cueuvzgegrvupdemloxrfsuieawv/Build/Intermediates.noindex/RevenueCat.build/Debug-watchos/RevenueCat.build/Objects-normal-asan/armv7k/Binary/RevenueCat.o

ld: scattered reloc r_address too large for architecture armv7k
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Scattered reloc r_address too large for architecture armv7k

Linker command failed with exit code 1 (use -v to see invocation)

The crucial part here is the error message: "ld: scattered reloc r_address too large for architecture armv7k" and "linker command failed with exit code 1". This indicates a problem during the linking phase, where the compiled code is being assembled into an executable. The error specifically mentions "armv7k", which is an architecture used in older Apple Watch models. This is interesting because it suggests the issue might be related to the watchOS target, even if the primary goal is to build for iOS. The error implies that a memory address or relocation is too large for the armv7k architecture to handle. This can happen when the code size or data exceeds the limits of the architecture or when there are inconsistencies in how memory is addressed.

Steps to Reproduce and Project Structure

The developer notes that the exact steps to reproduce the issue are unclear, but they highlight a key aspect of their project setup: they are using Packages to share dependencies across targets. This means they have a dependency package, named PestleDependencies, which includes RevenueCat along with other dependencies. This approach is great for modularizing code and preventing build size inflation, but it can sometimes introduce complexities. The use of packages and shared dependencies might be a contributing factor to the linking error. It's possible that the way these dependencies are linked or the build settings associated with them are causing conflicts when building for a physical device.

Potential Solutions and Workarounds

Okay, so we've dissected the problem. Now, let's get to the good stuff: potential solutions! Here are some steps you can take to troubleshoot and hopefully resolve this issue. Remember, debugging is often an iterative process, so you might need to try a few things before you find the magic bullet.

1. Clean Build Folder and Derived Data

This is the classic first step in any Xcode debugging scenario. Sometimes, stale build files and cached data can cause weird issues. To do this:

  • Go to Product > Clean Build Folder (Shift + Command + K).
  • Then, go to Xcode > Preferences > Locations, and click the arrow next to the Derived Data path to open it in Finder. Delete the contents of the DerivedData folder. (Alternatively, you can use a tool like CleanMyMac to handle this).

Cleaning the build folder ensures that Xcode rebuilds everything from scratch, eliminating any potential conflicts or corruption in the build artifacts. Clearing Derived Data removes cached build information, which can sometimes interfere with the build process. It's like hitting the reset button on your project's build system. This is a simple yet effective way to resolve many build-related issues.

2. Check Build Settings for Architecture Conflicts

The error message mentions "armv7k", which is specific to older Apple Watch architectures. It's possible that there's a mismatch in the build settings, causing the project to try and build for an architecture that's not compatible with your target device or the RevenueCat SDK. Here's what to check:

  • Architectures: In your project and target build settings, look for the "Architectures" setting. Ensure it includes the correct architectures for your target devices. For iOS devices, this typically includes arm64 and armv7.
  • Valid Architectures: Check the "Valid Architectures" setting as well. This setting specifies the architectures that Xcode is allowed to build for. Make sure it aligns with the architectures you intend to support. Remove any unnecessary architectures, especially if they are causing conflicts.
  • Build Active Architecture Only: Set "Build Active Architecture Only" to "Yes" for Debug builds. This can speed up build times and prevent issues related to building for multiple architectures simultaneously.

Ensuring that your build settings are correctly configured for your target architectures is crucial for preventing linking errors. Mismatched architectures can lead to incompatibilities and build failures. Reviewing these settings is a critical step in troubleshooting this type of issue.

3. Review Linking Settings

The linker is responsible for combining the compiled code into an executable. The error message indicates a problem during this linking phase. Here are some things to check:

  • Other Linker Flags: Look for the "Other Linker Flags" setting in your build settings. Make sure there are no conflicting or incorrect flags that might be causing the issue. Pay close attention to any flags related to architectures or memory management.
  • Framework Search Paths and Library Search Paths: Verify that the "Framework Search Paths" and "Library Search Paths" are correctly configured. These settings tell Xcode where to look for frameworks and libraries needed by your project. Incorrect paths can lead to linking errors.
  • Linked Frameworks and Libraries: Ensure that all the necessary frameworks and libraries are linked to your target. Check the "Linked Frameworks and Libraries" section in your target's General settings. Make sure that RevenueCat and any other dependencies are properly linked.

Incorrect linking settings can prevent the linker from finding the necessary components, resulting in build failures. Double-checking these settings is essential for resolving linking-related errors.

4. Check RevenueCat SDK Integration

Since the issue involves the RevenueCat SDK, it's worth double-checking the integration process. Here's what to look for:

  • Installation Method: How did you install the RevenueCat SDK? If you used Swift Package Manager, make sure the package is correctly added to your project and targets. If you used CocoaPods or Carthage, ensure that the dependencies are properly installed and up to date.
  • Build Phases: Check your target's "Build Phases" settings. Ensure that the RevenueCat framework or library is included in the "Link Binary With Libraries" phase.
  • Header Search Paths: If you're using a bridging header, make sure the RevenueCat headers are correctly included. Verify the "Header Search Paths" setting in your build settings.

A faulty integration of the RevenueCat SDK can lead to linking issues and build failures. Reviewing the installation and integration steps is crucial for ensuring that the SDK is properly included in your project.

5. Examine Package Dependencies

The developer mentioned using a PestleDependencies package to manage dependencies. This is a good practice, but it can introduce complexities. Here's what to investigate:

  • Package Versions: Make sure the versions of RevenueCat and other dependencies in your package are compatible with Xcode 26 Beta 5 and iOS 26b6. Sometimes, using older versions or beta versions can lead to conflicts.
  • Package Resolution: Try resolving the package dependencies again. In Xcode, go to File > Swift Packages > Resolve Package Versions. This will ensure that Xcode fetches the latest versions of your dependencies.
  • Package Structure: Review the structure of your package. Ensure that the dependencies are correctly defined and that there are no circular dependencies or conflicts within the package.

Problems with package dependencies can cause linking errors and build failures. Ensuring that your packages are properly configured and resolved is essential for maintaining a stable build environment.

6. Consider Xcode Beta Issues

Since you're using Xcode 26 Beta 5, there's a possibility that the issue is a bug in the beta version itself. Beta software is inherently unstable and might contain undiscovered issues. Here are some steps to take:

  • Check Release Notes: Review the Xcode 26 Beta 5 release notes. Apple often lists known issues and workarounds in the release notes. There might be a mention of a similar linking error or a known incompatibility with certain SDKs.
  • Search Apple Developer Forums: Search the Apple Developer Forums for similar issues. Other developers might have encountered the same problem and found a solution or workaround.
  • Report the Bug to Apple: If you suspect a bug in Xcode, report it to Apple through the Feedback Assistant. This helps Apple identify and fix issues in future releases.

Beta software can be buggy, and it's essential to consider this as a potential cause of the issue. Checking release notes, searching forums, and reporting bugs to Apple can help you determine if the problem is related to the Xcode beta.

7. Simplify the Project

If all else fails, try simplifying your project to isolate the issue. Here are some steps to take:

  • Create a New Project: Create a new, minimal Xcode project and try integrating RevenueCat into it. This will help you determine if the issue is specific to your project or a more general problem.
  • Remove Dependencies: Gradually remove dependencies from your project to see if one of them is causing the conflict. Start by removing the least critical dependencies and rebuild the project after each removal.
  • Simplify Build Settings: Reset your build settings to the default values. This will eliminate any custom settings that might be contributing to the issue.

Simplifying your project helps you isolate the cause of the problem by reducing the number of potential variables. By creating a minimal project or gradually removing dependencies, you can narrow down the source of the issue.

8. Check for Resource Conflicts

Sometimes, resource conflicts can lead to linking errors. Here's what to check:

  • Duplicate Files: Ensure that you don't have duplicate files in your project. Xcode can sometimes get confused if there are multiple files with the same name.
  • Conflicting Libraries: Make sure that there are no conflicting libraries in your project. Using multiple versions of the same library or libraries with overlapping functionalities can cause issues.
  • Asset Catalog Issues: Check your asset catalogs for any errors or inconsistencies. Corrupted or misconfigured assets can sometimes lead to build failures.

Resource conflicts can prevent the linker from correctly assembling your project, resulting in build errors. Reviewing your project's resources and ensuring there are no conflicts is an important troubleshooting step.

Next Steps and RevenueCat Support

If you've tried all these steps and still can't get your project to compile for a physical device, don't despair! Here are some additional steps you can take:

  • Contact RevenueCat Support: Reach out to RevenueCat's support team. They are experts in their SDK and might be able to provide specific guidance based on your project setup and the error message you're seeing.
  • Provide Detailed Information: When contacting support or posting on forums, provide as much detail as possible about your project, including your Xcode version, iOS version, RevenueCat SDK version, build settings, and the full error logs. The more information you provide, the easier it will be for others to help you.
  • Stay Patient: Debugging can be a time-consuming process. Stay patient and persistent, and you'll eventually find a solution.

Remember, you're not alone in this! Many developers encounter build issues from time to time. By systematically troubleshooting the problem and leveraging available resources, you can overcome this hurdle and get back to building awesome apps.

Conclusion

So, there you have it! We've taken a deep dive into the "Cannot Compile for Physical Device" error in Xcode 26 Beta 5, specifically in the context of the RevenueCat SDK. We've analyzed the error logs, explored potential causes, and outlined a comprehensive set of troubleshooting steps. Remember, the key to resolving these kinds of issues is to be methodical, patient, and persistent. By following the steps outlined in this article and leveraging resources like RevenueCat support and developer forums, you'll be well-equipped to tackle this challenge. Happy debugging, and may your builds be ever successful! Let's get those apps running on physical devices and into the hands of users!