After upgrading to Xcode 10.2 I am getting 2 errors
:-1: Unable to load contents of file list: \'xxxxx/Pods/Target Support Files/Pods-xxxx/Pods-xxx
I have the same issue and do the below steps and now am able to make build successful
go to Project->Configurations and set the valid configuration file for configuration.
if you see already set correct valid configuration file then do pod install
if you are not able see valid configuration file then pod install
and Now you can see the valid configuration file just choose the right one now.
Note : I have this issue on Xcode 11.7