请问代码运行报错怎么办？

[shuaiguoer]

报错信息如下： $ go build blue.go

github.com/paypal/gatt

github.com\paypal\gatt\central.go:118:11: undefined: central github.com\paypal\gatt\central.go:125:21: undefined: central github.com\paypal\gatt\central.go:135:2: not enough arguments to return github.com\paypal\gatt\device.go:114:10: undefined: device github.com\paypal\gatt\device.go:122:30: undefined: device github.com\paypal\gatt\device.go:127:30: undefined: device github.com\paypal\gatt\device.go:132:30: undefined: device github.com\paypal\gatt\device.go:137:30: undefined: device github.com\paypal\gatt\device.go:142:30: undefined: device github.com\paypal\gatt\device.go:152:10: undefined: device github.com\paypal\gatt\device.go:142:30: too many errors

望大佬解决~~~