panic: table: `.` not fo

panic: <Ormer> table: . not found, make sure it was registered with RegisterModel()

今天在用beego的orm进行数据查询的时候的时候出现了一个错误。

相关代码如下：
models/files.go

package models

import (
    "github.com/astaxie/beego/orm"
    "time"
)

type FileInfo struct {
    Id    int // 主键
    Filename   string `json:"filename" orm:"column(filename);size(255);"`
    UploadTime time.Time `json:"uploadtime" orm:"column(uploadtime);auto_now_add;type(datetime)"`
    Size int
    FileType string `json:"filetype" orm:"column(filetype);size(255);"`
}

func init() {
    orm.RegisterModel(new(FileInfo))
}

upload/test.go

package upload

import (
    "fmt"
    "bary/distribution/models"
    "github.com/astaxie/beego/orm"
    "time"
)
func Test() {
    o := orm.NewOrm()
    o.Using("default")

    var file = new(models.FileInfo)
    file.Filename = "cmds.go"
    err := o.Read(&file, "Filename")
    fmt.Println(err)

}

main.go

package main

import (
    _ "bary/distribution/routers"
    "github.com/astaxie/beego/orm"
    _ "bary/distribution/models"
    _ "github.com/go-sql-driver/mysql"
    "bary/distribution/upload"
)

func init() {
    orm.RegisterDriver("mysql", orm.DRMySQL)
    orm.RegisterDataBase("default", "mysql", "root:password@tcp(127.0.0.1:3306)/test")
    orm.RunSyncdb("default", false, true)
}

func main() {
    upload.Test()
}

上网查询这个错误：
基本上都说原因是没有有RegisterModel。
比如： https://github.com/astaxie/beego/issues/1672
但我明明注册过了。

后来找了半天发现是：
err := o.Read(&file, "Filename")
这个语句有问题，应该改成
err := o.Read(file, "Filename")

真是可怕的问题。。