执行./hello -syncdb表创建成功，浏览器访问报错：runtime error: invalid memory address or nil pointer dereference

[AlwaysKO]

按照文档步骤（之前是没有加admin.conf中的配置，导致报错。后来看到评论有说就表创建成功了），最后运行时也没有报错，访问时就报错了：
2018/09/21 15:39:24 INFO ▶ 0001 Using 'beegoAdminTest' as 'appname'
2018/09/21 15:39:24 INFO ▶ 0002 Initializing watcher...
2018/09/21 15:39:28 SUCCESS ▶ 0003 Built Successfully!
2018/09/21 15:39:28 INFO ▶ 0004 Restarting 'beegoAdminTest.exe'...
2018/09/21 15:39:28 SUCCESS ▶ 0005 './beegoAdminTest.exe' is running...
Starting....
Start ok
2018/09/21 15:39:30.365 [I] [asm_amd64.s:2337] http server Running on http://:8 080
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] the request url is /
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] Handler crashed with error runtim e error: invalid memory address or nil pointer dereference
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] C:/Go/src/runtime/asm_amd64.s:509
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] C:/Go/src/runtime/panic.go:491
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] C:/Go/src/runtime/panic.go:63
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] C:/Go/src/runtime/signal_windows. go:161
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] D:/LNMP/gowww/src/github.com/asta xie/beego/controller.go:610
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] D:/LNMP/gowww/src/github.com/beeg o/admin/src/rbac/public.go:30
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] C:/Go/src/runtime/asm_amd64.s:509
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] C:/Go/src/reflect/value.go:434
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] C:/Go/src/reflect/value.go:302
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] D:/LNMP/gowww/src/github.com/asta xie/beego/router.go:847
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] C:/Go/src/net/http/server.go:2619
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] C:/Go/src/net/http/server.go:1801
2018/09/21 15:39:33.666 [C] [asm_amd64.s:509] C:/Go/src/runtime/asm_amd64.s:233 7
2018/09/21 15:39:33.666 [server.go:2846] [HTTP] http: multiple response.WriteHe ader calls

有人遇到过这个问题吗

[AlwaysKO]

我看到好多问题都没有人回答，我已经找到问题了，我来自问自答吧。
解决办法：
在main入口函数中添加：beego.BConfig.WebConfig.Session.SessionOn = true，
或者在配置文件中添加：sessionon = true

[Kylelkh]

这个错误是由于session没有设置，beego默认的session是没有打开的，这个时候我们需要在项目运行之初，将session打开。
在main.go中的main函数中添加如下代码
beego.BConfig.WebConfig.Session.SessionOn = true