# Slim not working after composer install

**URL:** <https://discourse.slimframework.com/t/slim-not-working-after-composer-install/2192>\
**Category:** Questions\
**Created:** [January 25, 2018, 10:32am UTC](https://discourse.slimframework.com/t/slim-not-working-after-composer-install/2192 "2018-01-25T10:32:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![May](https://avatars.discourse-cdn.com/v4/letter/m/58f4c7/32.png) [@May](https://discourse.slimframework.com/u/May)\
**Post date:** [January 25, 2018, 10:32am UTC](https://discourse.slimframework.com/t/slim-not-working-after-composer-install/2192/1 "2018-01-25T10:32:23Z")

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Hi,  
Just installed SLIM as instructed:  
composer create-project slim/slim-skeleton slim\_test

And then ran the webserver:  
php -s localhost:8080 -t public public/index.php

When i do this i get the following error:  
Uncaught Error: Class ‘Monolog\Logger’ not found in [PATH]\src\settings.php:16

I Tried to remove the logger from settings for now, but it just triggers another error.  
Seems like the autoloader is not doing it’s job…

Someone familiar with this problem?

Thnx in advance.

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<div class="post-metadata">

**Author:** ![llvdl](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.slimframework.com/llvdl/32/78_2.png) [@llvdl](https://discourse.slimframework.com/u/llvdl)\
**Post date:** [January 28, 2018, 10:28pm UTC](https://discourse.slimframework.com/t/slim-not-working-after-composer-install/2192/2 "2018-01-28T22:28:51Z")

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Hello May,

Did you run `composer install` to install the dependencies?