Xcode freezes when fetching Swift Package (M2, macOS 15.5)

[BigVeila]

Describe the bug

When attempting to add https://github.com/awslabs/aws-sdk-swift as a Swift Package in Xcode, the Add Package dialog gets stuck at the “Fetching” or “Verifying” stage. The progress bar never advances and no error message is shown.

After this happens, Xcode is unable to fetch any other packages as well — the process hangs for all subsequent attempts. The only way to recover is to close and restart Xcode.

Environment
• Device: Apple Silicon M2
• macOS: 15.5 (Sequoia)
• Xcode: [please fill exact version, e.g. 15.4]
• SPM: Swift Package Manager (bundled with Xcode)

Expected Behavior

Xcode should successfully fetch and verify the Swift package and allow selecting products (AWSClientRuntime, TranscribeStreamingClient, etc.).

Current Behavior

•	Xcode freezes on “Fetching” or “Verifying” indefinitely.
•	No progress or error message is displayed.
•	After one failed attempt, no other package can be fetched in the same Xcode session.
•	Requires closing and restarting Xcode to try again.

Reproduction Steps

Steps to Reproduce
1. Open an iOS/macOS project in Xcode.
2. Go to File → Add Packages…
3. Enter package URL: https://github.com/awslabs/aws-sdk-swift

Possible Solution

No response

Additional Information/Context

No response

AWS SWIFT SDK version used

1.5.55

Compiler and Version used

16.1

Operating System and version

15.5

[sichanyoo]

Hi there, thanks for reaching out with the issue.

Pulling in the SDK repo takes a long time initially due to its large size stemming from following reasons:

• SDK supports every AWS service (300+) and supports all their operations
• In Swift ecosystem, library is vended via source code

From quick local testing, it took about 10 minutes for aws-sdk-swift to get pulled in initially.
Once it's pulled though, you can just add service client targets and runtime modules you need as dependency to your target(s).

In case you've already tried waiting longer than that duration (~10 minutes):
When it gets stuck for you, does the progress percentage not show either like in the below screenshot?

FYI my Xcode version is also 16.1.

[BigVeila]

It always takes me about an hour to fetch it whenever I update the version.