# Fatal error: Uncaught exception 'CacheException' with message 'Cache engine "session" is not properly configured

**URL:** <https://discourse.cakephp.org/t/fatal-error-uncaught-exception-cacheexception-with-message-cache-engine-session-is-not-properly-configured/5911>\
**Category:** Need Help\
**Created:** [April 9, 2019, 7:55am UTC](https://discourse.cakephp.org/t/fatal-error-uncaught-exception-cacheexception-with-message-cache-engine-session-is-not-properly-configured/5911 "2019-04-09T07:55:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![neeta](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@neeta](https://discourse.cakephp.org/u/neeta)\
**Post date:** [April 9, 2019, 7:55am UTC](https://discourse.cakephp.org/t/fatal-error-uncaught-exception-cacheexception-with-message-cache-engine-session-is-not-properly-configured/5911/1 "2019-04-09T07:55:18Z")

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Hi,  
Im doing first time cakephp2.7 project deployment on linux server.I have copied all the files from local server with same structure.Once i run that project on server facing below error.  
I have given the permission to tmp folder with owner also.  
I want to use file server cache engine for the project .  
Error:  
**Warning** : /var/www/html/via/app/tmp/cache/ is not writable in **/var/www/html/via/lib/Cake/Cache/Engine/FileEngine.php** on line **385**

**Fatal error** : Uncaught exception ‘CacheException’ with message ‘Cache engine “session” is not properly configured. Ensure required extensions are installed, and credentials/permissions are correct’ in /var/www/html/via/lib/Cake/Cache/Cache.php:186 Stack trace: #0 /var/www/html/via/lib/Cake/Cache/Cache.php(151): Cache::\_buildEngine(‘session’) #1 /var/www/html/via/app/Config/core.php(209): Cache::config(‘session’, Array) #2 /var/www/html/via/lib/Cake/Core/Configure.php(72): include(’/var/www/html/v…’) #3 /var/www/html/via/lib/Cake/bootstrap.php(431): Configure::bootstrap(true) #4 /var/www/html/via/app/webroot/index.php(98): include(’/var/www/html/v…’) #5 /var/www/html/via/index.php(43): require(’/var/www/html/v…’) #6 {main} thrown in **/var/www/html/via/lib/Cake/Cache/Cache.php** on line **186**

regards,  
Neeta

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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 10, 2019, 4:48pm UTC](https://discourse.cakephp.org/t/fatal-error-uncaught-exception-cacheexception-with-message-cache-engine-session-is-not-properly-configured/5911/2 "2019-04-10T16:48:45Z")

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Have you given permissions on the `tmp/cache` folder, or just `tmp`?