realm-swift: Using RealmSwift.NotificationToken type when RealmSwift acts as a dependency fails CocoaPods lib lint validation

Goals

Use RealmSwift as a dependency for CocoaPod in Xcode 12. Not sure when this started happening, as this integration was working for couple of years without any issues.

Expected Results

When using RealmSwift as a dependency, pod lib validation should succeed.

Actual Results

Pod lib lint returns undefined symbols error:

Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_RLMNotificationToken"

Steps for others to Reproduce

Clone https://github.com/DenTelezhkin/DTModelStorage, branch cocoapods-enable-realm
Run bundle exec pod lib lint --allow-warnings --no-clean --verbose
Observe build failures.

Code Sample

Attaching CocoaPods-generated project that failed pod lib lint validation for easier debugging:

CocoaPods-Lint-20200923-61087-vg31ow-DTModelStorage.zip

Also build failure can be observed on CI:

https://github.com/DenTelezhkin/DTModelStorage/runs/1154609764?check_suite_focus=true

It seems, that the only issue is with RLMNotificationToken type, because if the code referencing this type is commented out, build succeeds.

Version of Realm and Tooling

Xcode 12 CocoaPods 1.10.0.beta.2 Realm 5.3.5 RealmCore 6.0.19

About this issue

Original URL
State: closed
Created 4 years ago
Reactions: 10
Comments: 15 (1 by maintainers)

Commits related to this issue

add DAO manually due https://github.com/realm/realm-cocoa/issues/6800 — committed to petropavel13/TestPodspecs by petropavel13 4 years ago
add RedAlert-UI 2.4.0 manually due https://github.com/realm/realm-cocoa/issues/6800 — committed to petropavel13/TestPodspecs by petropavel13 4 years ago
add RedAlert-UI 2.4.0 manually due https://github.com/realm/realm-cocoa/issues/6800 — committed to petropavel13/TestPodspecs by petropavel13 4 years ago
Realm is depended upon https://github.com/realm/realm-cocoa/issues/6800#issuecomment-733657228 — committed to UWDevApp/Cognostic by ApolloZhu 3 years ago
Fix Realm dependency: https://github.com/realm/realm-cocoa/issues/6800 — committed to rcaos/TVToday by rcaos 3 years ago

Most upvoted comments

Looks like we need to add Realm to podspec file:

s.dependency "Realm"

Otherwise your target will not depend on Realm despite RealmSwift has dependency on Realm:

Looks like coocapods bug.

For example:

Target dependencies in Pods project with implicit `Realm` dependency:

Target dependencies in Pods project with explicit `Realm` dependency:

+20

petropavel13 on Nov 25, 2020

Hi,

We are facing the same issue as well. Xcode 12 Cocoapods 1.9.3 Realm 5.5.0

Is there any kind of update?

Thanks, Nilit

x-NR-x on Oct 18, 2020

Having the same issue here.

Xcode 12 Cocoapods 1.9.3 Realm 5.4.3

mentrena on Sep 25, 2020

I am also getting the same error for RealmSwiftObject


Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_RealmSwiftObject"

JonnyBeeGod on Nov 19, 2020