var google.golang.org/protobuf/internal/errors.Error

4 uses

	google.golang.org/protobuf/internal/errors (current package)
		errors.go#L16: var Error = errors.New("protobuf error")
		errors.go#L41: 	return Error
		errors.go#L67: 	return target == Error

	google.golang.org/protobuf/proto
		proto.go#L33: 	Error = errors.Error