module_test_ios fails, Undefined symbols for architecture armv7: "_OBJC_CLASS_$_UIPointerShape", referenced from: objc-class-ref in GoogleMaps

[jmagman]

[module_test_ios] [STDOUT] ══════════════╡ ••• Build ephemeral host app with CocoaPods ••• ╞═══════════════
[module_test_ios] [STDOUT] 
[module_test_ios] [STDOUT] 
[module_test_ios] [STDOUT] Executing: /private/tmp/flutter sdk/bin/flutter build ios --no-codesign in /var/folders/3y/l0z1x3693dl_8n0qybp4dqwh0000gn/T/flutter_module_test.lFLCqR/hello
[module_test_ios] [STDOUT] stdout: The plugin `flutter_plugin_android_lifecycle` is built using an older version of the Android plugin API which assumes that it's running in a full-Flutter environment. It may have undefined behaviors when Flutter is integrated into an existing app as a module.
[module_test_ios] [STDOUT] stdout: The plugin can be updated to the v2 Android Plugin APIs by following https://flutter.dev/go/android-plugin-migration.
[module_test_ios] [STDOUT] stdout: Warning: Building for device with codesigning disabled. You will have to manually codesign before deploying to device.
[module_test_ios] [STDOUT] stdout: Building io.flutter.devicelab.hello for device (ios-release)...
[module_test_ios] [STDOUT] stdout: Running pod install...                                              5.6s
[module_test_ios] [STDOUT] stdout: Running Xcode build...                                          
[module_test_ios] [STDOUT] stdout: Xcode build done.                                           35.5s
[module_test_ios] [STDOUT] stdout: Failed to build iOS app
[module_test_ios] [STDOUT] stdout: Error output from Xcode build:
[module_test_ios] [STDOUT] stdout: ↳
[module_test_ios] [STDOUT] stdout:     ** BUILD FAILED **
[module_test_ios] [STDOUT] stdout: 
[module_test_ios] [STDOUT] stdout: 
[module_test_ios] [STDOUT] stdout: Xcode's output:
[module_test_ios] [STDOUT] stdout: ↳
[module_test_ios] [STDOUT] stdout:     Undefined symbols for architecture armv7:
[module_test_ios] [STDOUT] stdout:       "_OBJC_CLASS_$_UIPointerShape", referenced from:
[module_test_ios] [STDOUT] stdout:           objc-class-ref in GoogleMaps
[module_test_ios] [STDOUT] stdout:       "_OBJC_CLASS_$_UIPointerStyle", referenced from:
[module_test_ios] [STDOUT] stdout:           objc-class-ref in GoogleMaps
[module_test_ios] [STDOUT] stdout:     ld: symbol(s) not found for architecture armv7
[module_test_ios] [STDOUT] stdout:     clang: error: linker command failed with exit code 1 (use -v to see invocation)
[module_test_ios] [STDOUT] stdout:     note: Using new build system
[module_test_ios] [STDOUT] stdout:     note: Planning build
[module_test_ios] [STDOUT] stdout:     note: Constructing build description

[jmagman]

GoogleMaps 3.10.0 podspec was published at the same time.
https://github.com/CocoaPods/Specs/blob/master/Specs/a/d/d/GoogleMaps/3.10.0/GoogleMaps.podspec.json

[jmagman]

I'm actually not sure how this happens. google_maps_flutter pub version is at 0.5.29 and GoogleMaps CocoaPods is at 3.10.0:
https://cirrus-ci.com/task/5509800735801344?command=main#L2220

[module_test_ios] [STDOUT]   google_maps_flutter:
[module_test_ios] [STDOUT]     dependency: "direct main"
[module_test_ios] [STDOUT]     description:
[module_test_ios] [STDOUT]       name: google_maps_flutter
[module_test_ios] [STDOUT]       url: "https://pub.dartlang.org"
[module_test_ios] [STDOUT]     source: hosted
[module_test_ios] [STDOUT]     version: "0.5.29"

[module_test_ios] [STDOUT]   - GoogleMaps (3.10.0):
[module_test_ios] [STDOUT]     - GoogleMaps/Maps (= 3.10.0)

However locally when I try to force this combination locally I get this error, which the test doesn't show:

[!] CocoaPods could not find compatible versions for pod "GoogleMaps":
  In Podfile:
    google_maps_flutter (from `.symlinks/plugins/google_maps_flutter/ios`) was resolved to 0.0.1, which depends on
      GoogleMaps (= 3.10.0)

Specs satisfying the `GoogleMaps (= 3.10.0)` dependency were found, but they required a higher minimum deployment target.

And that makes sense, because google_maps_flutter minimum version is iOS 8.0 and GoogleMaps 3.10 is iOS 9.0.
GoogleMaps 2.7.0 is the last version to have a minimum of 8.0:.

I think the right thing to do it change the podspec to s.dependency 'GoogleMaps', '~> 2.7' until that minimum version is increased to 9.0.

Not sure why this started happening as soon as GoogleMaps 3.10.0 was published.

\cc @ditman @cyanglaz

[ditman]

I have never seen this error before, I'm not touching podspecs (only the fake ones for web components). Odd.

I think the right thing to do it change the podspec to s.dependency 'GoogleMaps', '~> 2.7' until that minimum version is increased to 9.0.

Sounds right, I'm trying to find other similar builds to see which version of GoogleMaps they're grabbing. (There's been 3.0.x versions for as long as 2.7.x, according to the CocoaPods link)

[jmagman]

@ditman That's warning is an old issue #20708 (comment).
Why is camera trying to call GoogleMaps code?

    CompileC /Users/anka/Library/Developer/Xcode/DerivedData/Runner-bxdmgdiknppixagjxwwbajlmfdkc/Build/Intermediates.noindex/Pods.build/Debug-iphoneos/camera.build/Objects-normal/arm64/CameraPlugin.o /var/folders/3y/l0z1x3693dl_8n0qybp4dqwh0000gn/T/cirrus-ci-build/packages/camera/ios/Classes/CameraPlugin.m normal arm64 objective-c com.apple.compilers.llvm.clang.1_0.compiler
    Undefined symbols for architecture armv7:
      "_OBJC_CLASS_$_UIPointerShape", referenced from:
          objc-class-ref in GoogleMaps
      "_OBJC_CLASS_$_UIPointerStyle", referenced from:
          objc-class-ref in GoogleMaps

[ditman]

@jmagman there's a couple of internal issues where this is reported:

• b/163359804
• b/163474612

Seems to be a problem with v3.10, requiring a higher XCode than the one we're running our tests on (11.3.1 IIRC)

[jmagman]

That framework need to fix some availability, probably.

But the plugin can't use 3.10 anyway because it requires a minimum of iOS 9.0, and the plugin declares it supports 8.0. Hopefully your fix at flutter/plugins#2920 keeps this from happening, though I'm still puzzled how it happened in CI since I couldn't make it use 3.10 on my machine.

[jmagman]

Oh wait, flutter/plugins#2920 was closed. Hmmm...

[ditman]

I'm trying to pin to 3.9, which is probably the last good version we were using anyways. Opening a new PR right now and seeing what happens.

[ditman]

Summarizing the "investigation" we've done so far:

• The minimum version of ios was bumped from 8.0 to 9.0 recently.

• Turns out the build_all_plugins_ipa uses flutter create to auto-generate an app with all the plugins. Other tests may do the same.

• The google_maps_flutter plugin specifies a minimum version of ios to run (8.0). Resolving that in an app for 8.0, will yield GoogleMaps (pod) 2.7 (as seen here), however new apps that use 9.0 can resolve 3.x versions of the pod.

• 3.9 was good, as seen in the full-green pass linked in the comment above.

• 3.10 is bad, as linked in the buganizer issues in the PR; Probably because it exposes new APIs that require a newer version of XCode. The change is undocumented as of now, (and this whole line is pure speculation):

Version 3.10.0 - August 10, 2020

• Version bump, no changes. This version is functionally identical to v.3.9.0.
• There is a new Maps Swift Demo App in Google Maps cocoapods.

For now, google_maps_flutter will pin GoogleMaps (pod) to < 3.10, that should be removed once the issue is fixed in the pod.

[ditman]

Cleanup ticket created: #63530

[ditman]

Fix to google_maps_flutter plugin tagged and published: v0.5.29+1

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