Can't find Pods.modulemap - looking in wrong directory

The solution that worked for me was:

First step:
(this step may no longer be needed in Xcode 9.x and newer)

1. Open Xcode
2. Click Window (Menu Bar)
3. Click Projects
4. Remove all projects (e.g. use backspace)
5. Close Xcode

Second Step:

1. Open a terminal app
2. cd ~/Library/Developer/Xcode/DerivedData
3. rm -rf Build/* see below if you have a customized build location
4. rm -rf ModuleCache/*
5. Close a terminal app

Third Step:

1. Open Xcode
2. Product > Clean
3. Product > Run

Source: https://stackoverflow.com/a/30752152/756976

If you have defined a custom build location:

1. Go with Finder or the Terminal to the location of the build files. The location for these files is defined in Xcode. To check where these files are:
   • Open Xcode
   • Go to Settings -> Locations -> Derived Data
2. Go to that location and delete the Build folder

---

Edit: June 9, 2016

It is also possible that this resolves your problem:

By default the clean of Xcode, does not delete everything, by going to Product, pressing the ALT-key, the Clean-button will change to Clean Build Folder....

In my case I had made a few changes to my PodFile, got a similar error and just re-ran 'install':

% pod install

And I was back in business.