[Technical Questions] Issues and Mitigations - Previewing and running the starter project app on Xcode

[mmervecerit]

In what area do you have a technical challenge?

Xcode, Simulator & Previews

Description

I am in the team NeutroFeverGuard. While trying to run the starter app, I have encountered some issues.
Running - Issue Resolved

1. I got the following error in building the app:

SourceKittenFramework/library_wrapper.swift:58: Fatal error: Loading sourcekitdInProc.framework/Versions/A/sourcekitdInProc failed

After I run, sudo xcode-select -s /Applications/Xcode.app/Contents/Developer as advised in Swift Lint Repo, the issue was resolved and I built and ran my app.

My issue was resolved.

Previewing - Issue Still Open
2. I tried to preview the HomeView many times and unfortunately didn't get it to work. It takes forever for Xcode to "index and process" files. Is this expected? After it eventually was done it gave an error for preview, I fixed that error by editing the code a bit, but still, it tells me it cannot find other files in scope. You can see more info in the reproduction.

On TestFlight - Issue Still Open
3. The app seemed to freeze after I tried to sign up with Apple ID. It was simply in loading mode for a long time. I think this is because of the test Firebase account not being active. Would be great to confirm, and apologize if you mentioned it in class, I missed it. See the screenshot in the reproduction.

Reproduction

Preview Issue details:

First, it cannot find other views in scope(even though they have the same target membership), and then after the indexing ends, it gives the error that the details below do not conform to View.

@State var details = AccountDetails()
details.userId = "lelandstanford@stanford.edu"
details.name = PersonNameComponents(givenName: "Leland", familyName: "Stanford")
HomeView()
    .previewWith(standard: NeutroFeverGuardStandard()) {
        NeutroFeverGuardScheduler()
        AccountConfiguration(service: InMemoryAccountService(), activeDetails: details)
    }

I changed that code snippet to the following:

let details: AccountDetails = {
        var tempDetails = AccountDetails()
        tempDetails.userId = "lelandstanford@stanford.edu"
        tempDetails.name = PersonNameComponents(givenName: "Leland", familyName: "Stanford")
        return tempDetails
    }()
HomeView()
    .previewWith(standard: NeutroFeverGuardStandard()) {
        NeutroFeverGuardScheduler()
        AccountConfiguration(service: InMemoryAccountService(), activeDetails: details)
    }

However, it is still taking forever, and can't see anything in Preview. Is it normal given the size of the project? Should we just drop using Preview? (Below, it started reindexing so that's why it gives the error of file not in scope, but then it fixes)

TestFlight App Stuck in Loading Screen

Expected behavior

For Running, I expected it to be built and run without any errors. Now it is working.
For the preview, I expected it to work for HomeView without any errors. Still not working.
For the TestFlight app, I expected the app to sign me up without an issue. I guess the Firebase account is not connected to a real login and password.

Additional context

No response

Code of Conduct

• I agree to follow this course's Code of Conduct and Contributing Guidelines

[AdritRao]

Hi @mmervecerit, thank you for bringing up these issues!

Regarding the previews issue you are encountering, please refer to this PR from @PSchmiedmayer which fixes the issue. You can use this fix on any previews which give you the same problem. The problem was occurring because the Scheduler module was missing in the preview modifier and previews are created independently from the main app and app delegate.

In the future, to figure out the exact preview error that is occurring you can click the icon in the preview window as shown below. This will give you a full diagnostic report:

Regarding the issue with the "Sign in with Apple" feature, this may be an underlying issue in the Spezi Account module. @Supereg, can you please look into this? Thank you!