App Crashes on Login - Githubissues

When hitting the profile button and choosing "Sign In", the app immediately crashes on my iPhone X (MQAC2ZD/A) running iOS 14.6 (18F72) with the following output appearing in the console:

[Portal Session Manager] 
    Loading Portal - https://www.arcgis.com
2021-06-11 11:33:40.286813+0200 data-collection[10305:555925] [AuthenticationSession] The provided scheme is not valid. A scheme should not include special characters such as ":" or "/".
2021-06-11 11:33:40.287354+0200 data-collection[10305:555925] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'The provided scheme is not valid. A scheme should not include special characters such as ":" or "/".'
*** First throw call stack:
(0x1ad02f298 0x1c0d89480 0x1dcdce4cc 0x10565fa04 0x10565f2a8 0x105769700 0x11b183ae8 0x11b18532c 0x11b19376c 0x1acfae2e0 0x1acfa8740 0x1acfa7818 0x1c36ad570 0x1af8d30e8 0x1af8d8664 0x1048575e4 0x1acc86140)
libc++abi: terminating with uncaught exception of type NSException
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'The provided scheme is not valid. A scheme should not include special characters such as ":" or "/".'
terminating with uncaught exception of type NSException

I am using an exact clone of the latest version of the data collection app (commit 437f6f5, May 8, 2021) without any modifications made to the source code. The only additional steps I have performed are registering an OAuth application in the ArcGIS Developer Dashboard with a data-collection://auth redirect URL and configuring its client ID in the data-collection-ios/data-collection/.secrets file (ARCGIS_CLIENT_ID=…), as described in the README. The app was built using Xcode 12.5 (12E262) on macOS 11.4 (20F71).

When performing the same steps in the iPad simulator, I get an additional stack trace:

[Portal Session Manager] 
    Loading Portal - https://www.arcgis.com
2021-06-11 11:36:30.002717+0200 data-collection[13325:405636] [AuthenticationSession] The provided scheme is not valid. A scheme should not include special characters such as ":" or "/".
2021-06-11 11:36:30.008923+0200 data-collection[13325:405636] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'The provided scheme is not valid. A scheme should not include special characters such as ":" or "/".'
*** First throw call stack:
(
    0   CoreFoundation                      0x00007fff20422fba __exceptionPreprocess + 242
    1   libobjc.A.dylib                     0x00007fff20193ff5 objc_exception_throw + 48
    2   AuthenticationServices              0x00007fff4aae1b15 -[ASWebAuthenticationSession initWithURL:callbackURLScheme:usingEphemeralSession:completionHandler:] + 684
    3   ArcGIS                              0x0000000107bb84bc -[AGSOAuthChallengeHandler loginWithCompletion:] + 1373
    4   ArcGIS                              0x0000000107bb7d33 -[AGSOAuthChallengeHandler handleChallenge:] + 288
    5   ArcGIS                              0x0000000107cbd6f3 -[AGSAuthenticationChallenge continueWithDefaultHandling] + 743
    6   libdispatch.dylib                   0x000000010f71c578 _dispatch_call_block_and_release + 12
    7   libdispatch.dylib                   0x000000010f71d74e _dispatch_client_callout + 8
    8   libdispatch.dylib                   0x000000010f72bb3f _dispatch_main_queue_callback_4CF + 1152
    9   CoreFoundation                      0x00007fff203908f8 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
    10  CoreFoundation                      0x00007fff2038b169 __CFRunLoopRun + 2781
    11  CoreFoundation                      0x00007fff2038a1a7 CFRunLoopRunSpecific + 567
    12  GraphicsServices                    0x00007fff2b874d85 GSEventRunModal + 139
    13  UIKitCore                           0x00007fff246c14df -[UIApplication _run] + 912
    14  UIKitCore                           0x00007fff246c639c UIApplicationMain + 101
    15  data-collection                     0x00000001070ed10b main + 75
    16  libdyld.dylib                       0x00007fff2025abbd start + 1
)
libc++abi: terminating with uncaught exception of type NSException
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'The provided scheme is not valid. A scheme should not include special characters such as ":" or "/".'
terminating with uncaught exception of type NSException
CoreSimulator 757.5 - Device: iPad Pro (9.7-inch) (03A962BB-3C25-4E7F-B884-6E96ABA91459) - Runtime: iOS 14.5 (18E182) - DeviceType: iPad Pro (9.7-inch)

I have tried modifying the basePortalDomain and webMapItemID in AppConfiguration.swift to point to a custom web map. Since this is not a public web map, I then get a prompt upon app launch asking me to sign in to access the resource. When hitting the "Sign in" button on that prompt, the app crashes with the same error message.

I do not see what's wrong here. The URL scheme is correctly configured in all AppConfiguration.swift, Info.plist and the dashboard, so I'm suggesting that this is a bug.

enum OAuthConfig {
    /// The App's oAuth redirect URL.
    /// - The URL must match the path created in the **Current Redirect URIs** section of the **Authentication** tab within the [Dashboard of the ArcGIS for Developers site](https://developers.arcgis.com/applications).
    static let redirectUrl = "data-collection://auth"
}

<dict>
    <key>CFBundleURLTypes</key>
    <array>
        <dict>
            <key>CFBundleTypeRole</key>
            <string>Editor</string>
            <key>CFBundleURLName</key>
            <string>com.esri.arcgisruntime.exampleapps.data-collection</string>
            <key>CFBundleURLSchemes</key>
            <array>
                <string>data-collection</string>
            </array>
        </dict>
    </array>
    …
</dict>

Esri / data-collection-ios

App Crashes on Login #303