Getting errors when try to 'Deploy to Sandbox'

I would like to start working with Box SDK for Salesforce.  I clicked on 'Deploy to Sandbox' and I get errors. 

Deployment Started

Deployment Complete
Failures:
classes/BoxApiConnection.cls(69,37):Dependent class is invalid and needs recompilation:
Class.BoxApiRequest.getBoxResourceResponseBody: line 205, column 23
BoxResource: line 36, column 36: Dependent class is invalid and needs recompilation:
BoxFolder: line 341, column 12: Invalid type: BoxFile.Info
classes/BoxCreateUserParamsTests.cls(19,36):Dependent class is invalid and needs recompilation:
Class.BoxCreateUserParams: line 12, column 12
BoxUser: line 5, column 30: Dependent class is invalid and needs recompilation:
Class.BoxCollaborator: line 13, column 28
Class.BoxApiConnection.authenticate: line 69, column 37
Class.BoxApiRequest.getBoxResourceResponseBody: line 205, column 23
BoxResource: line 36, column 36: Dependent class is invalid and needs recompilation:
BoxFolder: line 341, column 12: Invalid type: BoxFile.Info

What do I need to do?