Question: Xcode is stuck Generating Previews after trying to migrate my project from `Swift 2.3` to `Swift 3`.

Is there anyway to check the status of this process without cancelling?

I'm using Cocoapods and I've already changed all of the Swift pods to `Swift 3` versions.

[![Generating preview](https://i.stack.imgur.com/AZ9A1.png)](https://i.stack.imgur.com/AZ9A1.png)

Answer: 
There is a workaround for this problem with which you can at least complete the process and start working on migration.

1. Select targets to convert as usual
2. Wait until the converter gets stuck
3. Open **Activity Monitor** and kill the **swift** process
4. Now the converter will continue and finish the work.
Running migration from the command line worked for me. Try using this script:

<https://gist.github.com/davidahouse/18dd78bef7ae543117c396f8c950ccfe>