Unit Test: Undefined symbol: _$s10RealmSwift0A0V13ConfigurationV07defaultC0AEvgZ

[paparotnick]

How frequently does the bug occur?

Always

Description

1. Goals

Use RealmSwift in Unit Tests + version above 10.48.1 + installed via Package.swift file

2. Expected results

Successfully build Unit Tests target

3. Actual results:

If I just build main target - it's building successfully
If I run unit tests - I'm getting 20 errors like Undefined symbol: _$s10RealmSwift0A0V13ConfigurationV07defaultC0AEvgZ

Stacktrace & log output

No response

Can you reproduce the bug?

Always

Reproduction Steps

1. Important - I caught the issue only from version 10.48.2. On 10.48.1 and before all works as expected
2. Specify in Package.swift: .package(url: "https://github.com/realm/realm-swift.git", .exactItem(Version(10, 48, 2))),
3. Link RealmSwift product to target in Package.swift: .product(name: "RealmSwift", package: "realm-swift"),
4. Run Unit Tests

Version

10.48.2

What Atlas Services are you using?

Local Database only

Are you using encryption?

No

Platform OS and version(s)

iOS 15+

Build environment

ProductName: macOS
ProductVersion: 14.5
BuildVersion: 23F79

/Applications/Xcode15.4.app/Contents/Developer
Xcode 15.4
Build version 15F31d

/opt/homebrew/opt/ruby/bin/pod
1.15.2

/bin/bash
GNU bash, version 3.2.57(1)-release (arm64-apple-darwin23)

carthage not found
(not in use here)

/usr/bin/git
git version 2.39.3 (Apple Git-146)

[sync-by-unito]

➤ PM Bot commented:

Jira ticket: RCOCOA-2420

[paparotnick]

I'm still trying to fix this issue and now have more context:

1. If I add RealmSwift via Cocoapods it works well. But it's not the solution for me, as I cannot use cocoa pods for this project.
2. If I add RealmSwift via SPM NOT to Package.swift, but directly to the target, it shows the same errors
3. I tried to create a new project with Unit Tests and add RealmSwift via SPM (version 10.52.3). After I added only one line: Realm.Configuration.defaultConfiguration.inMemoryIdentifier = self.name it start showing me same type of errors (on a screenshot)

Important part: I've added RealmSwift as on screenshot

Could it be some issue with my local machine configuration?

[paparotnick]

Also attaching test project, where I could reproduce the error, please check

Test_realm.zip

[paparotnick]

Checked the latest version of Realm (20.0.0) - the issue is the same.
Are there any updates?

[dpasirst]

I'm experiencing the same issue when it comes to unit tests. I too use SPM. I can also confirm that things work for me with 10.48.1 but not with newer versions.