Illegal operation: undefined
Position error
FILE: D: \ ccjyptweb/ThinkPHP/Library/Think \ Controller class. PHP LINE: 170
TRACE
# 0 D: \ ccjyptweb/ThinkPHP/Library/Think \ Controller class. PHP (170) : E (' \ xE9 \ x9D \ x9E \ xE6 \ xb2 \ x95 \ xE6 \ x93 \ x8D \ xE4 \ xBD \ x9C: UN... ')
# 1 [internal function] : Think \ Controller - & gt; The __call (' undefined ', ')
# 2 D: \ ccjyptweb \ ThinkPHP/Library/Think/App. The class. (114) : PHP ReflectionMethod - & gt; InvokeArgs (Object (Home/Controller/UserController), Array)
# 3 D: \ ccjyptweb \ ThinkPHP/Library/Think/App. Class. PHP (204) : Think \ App: : exec ()
# 4 D: \ ccjyptweb \ ThinkPHP/Library/Think/Think. Class. PHP (129) : Think \ App: : run ()
# 5 D: \ ccjyptweb \ ThinkPHP \ ThinkPHP PHP (97) : Think \ Think: : start ()
# 6 D: \ ccjyptweb \ index PHP (34) : require (' D: \ \ ccjyptweb \ \ Th... ')
# 7 {main}
ThinkPHP3.2.3 {Fast & amp; Simple OOP PHP Framework} - [WE CAN DO IT JUST THINK]