# Cakephp Map Resource undefined

**URL:** <https://discourse.cakephp.org/t/cakephp-map-resource-undefined/9228>\
**Category:** Need Help\
**Created:** [April 13, 2021, 7:38am UTC](https://discourse.cakephp.org/t/cakephp-map-resource-undefined/9228 "2021-04-13T07:38:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Johnshiva](https://avatars.discourse-cdn.com/v4/letter/j/e79b87/32.png) [@Johnshiva](https://discourse.cakephp.org/u/Johnshiva)\
**Post date:** [April 13, 2021, 7:38am UTC](https://discourse.cakephp.org/t/cakephp-map-resource-undefined/9228/1 "2021-04-13T07:38:42Z")

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Can someone help me with this error . Honestly speaking . i dont understand this part .|  
I am currently upgrading my 2.x to 4.x

 ![image](https://canada1.discourse-cdn.com/flex029/uploads/cakephp/original/2X/1/142b284e835b8fbb7d6b0f56d81cfbabaa3ab4e4.png) ![image](https://canada1.discourse-cdn.com/flex029/uploads/cakephp/original/2X/0/0059807451445ed2181d2d7a85b089bce44b9fac.png)

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**Author:** ![Zuluru](https://yyz1.discourse-cdn.com/flex029/user_avatar/discourse.cakephp.org/zuluru/32/1230_2.png) [@Zuluru](https://discourse.cakephp.org/u/Zuluru)\
**Post date:** [April 13, 2021, 2:25pm UTC](https://discourse.cakephp.org/t/cakephp-map-resource-undefined/9228/2 "2021-04-13T14:25:28Z")

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`mapResources` was removed. [Use Router::scope() and RouteBuilder::resources() instead](https://api.cakephp.org/3.4/class-Cake.Routing.Router.html#_mapResources)