# Cache in cakephp 3.4

**URL:** <https://discourse.cakephp.org/t/cache-in-cakephp-3-4/3068>\
**Category:** Need Help\
**Created:** [August 22, 2017, 8:25am UTC](https://discourse.cakephp.org/t/cache-in-cakephp-3-4/3068 "2017-08-22T08:25:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rbala7793](https://avatars.discourse-cdn.com/v4/letter/r/f475e1/32.png) [@rbala7793](https://discourse.cakephp.org/u/rbala7793)\
**Post date:** [August 22, 2017, 8:25am UTC](https://discourse.cakephp.org/t/cache-in-cakephp-3-4/3068/1 "2017-08-22T08:25:00Z")

</div>

Cache not configured in my cakephp 3.4. following error occurred "Error: You cannot serialize or unserialize PDO instances " How to Solve this error any one please help me…