Trying to get property 'id' of non-object

Call Stack

1. in Help.php line 20
2. at Error->appError() in Help.php line 20
3. at Help->index()
4. at ReflectionMethod->invokeArgs() in Container.php line 344
5. at Container->invokeReflectMethod() in Controller.php line 110
6. at Controller->think\route\dispatch\{closure}() in Pipeline.php line 59
7. at Pipeline->think\{closure}() in Pipeline.php line 66
8. at Pipeline->then() in Controller.php line 113
9. at Controller->exec() in Dispatch.php line 90
10. at Dispatch->run() in Route.php line 772
11. at Route->think\{closure}() in Pipeline.php line 59
12. at Pipeline->think\{closure}() in Pipeline.php line 66
13. at Pipeline->then() in Route.php line 773
14. at Route->dispatch() in Http.php line 216
15. at Http->dispatchToRoute() in Http.php line 206
16. at Http->think\{closure}() in Pipeline.php line 59
17. at Pipeline->think\{closure}() in MultiApp.php line 71
18. at MultiApp->think\app\{closure}() in Pipeline.php line 59
19. at Pipeline->think\{closure}() in AllowCrossDomain.php line 51
20. at AllowCrossDomain->handle()
21. at call_user_func() in Middleware.php line 142
22. at Middleware->think\{closure}() in Pipeline.php line 85
23. at Pipeline->think\{closure}() in Auth.php line 25
24. at Auth->handle()
25. at call_user_func() in Middleware.php line 142
26. at Middleware->think\{closure}() in Pipeline.php line 85
27. at Pipeline->think\{closure}() in Pipeline.php line 66
28. at Pipeline->then() in MultiApp.php line 72
29. at MultiApp->handle()
30. at call_user_func() in Middleware.php line 142
31. at Middleware->think\{closure}() in Pipeline.php line 85
32. at Pipeline->think\{closure}() in TraceDebug.php line 71
33. at TraceDebug->handle()
34. at call_user_func() in Middleware.php line 142
35. at Middleware->think\{closure}() in Pipeline.php line 85
36. at Pipeline->think\{closure}() in Pipeline.php line 66
37. at Pipeline->then() in Http.php line 207
38. at Http->runWithRequest() in Http.php line 170
39. at Http->run() in index.php line 20