读取配置文件时出错。Golang 使用 viper 包

请在读取 env.json 文件时需要帮助。任何时候我运行我的代码我总是得到这个错误

Error reading config file, Config File "env" Not Found in "[/Users/franklynomonade/go/src/bitbucket.org/core_backend/cmd/server/bitbucket.org/core_backend/pkg/app/config]"

"/Users/franklynomonade/go/src/bitbucket.org/core_backend/cmd/server""bitbucket.org/core_backend/pkg/app/config""bitbucket.org/core_backend/pkg/app/config""/Users/franklynomonade/go/src/bitbucket.org/core_backend/cmd/server/bitbucket.org/core_backend/pkg/app/config"

github.com/spf13/viper

func LoadConfig() {

    viper.AddConfigPath(myPath)

    viper.SetConfigName("env")

    viper.SetConfigType("json")

    // searches for config file in given paths and read it

    if err := viper.ReadInConfig(); err != nil {

        log.Fatalf("error reading config file: %s", err)

    }

    // confirm which config file is used

    log.Printf("Using s: %s\n", viper.ConfigFileUsed()

}

关于如何解决这个问题的任何想法？