I'm trying to set up a playground for a Swift framework I'm working on. I've followed the steps in this answer but trying to access members of the framework stops playground execution and throws:
Playground execution failed: error: Couldn't lookup symbols:
__symbol1...
__symbol2...
...
I've made sure that the members are public. I can import the module itself and Xcode even shows code completion for the members, but the playground itself won't run because of the error.