I have cloned the examples in to my src github but when I try and run the booking example I get the following error

ERROR 13:16:41 harness.go:239: Build detected an error error="Go Compilation Error (in ../../../../../pkg/mod/github.com/revel/modules@v0.21.0/orm/gorp/app/dbgorp.go:7): no matching versions for query "latest""

Error compiling code, to view error details see proxy running on http://0.0.0.0:9000

Time to recompile 2.102759448s
Any ideas how to fix this

Thanks

BTW the other examples throw even more errors