[Symfony] [ckeditor] browse / upload buttons missing - how to fix

be sure you don't have duplicate call of ivory_ck_editor in config.yml file.

composer & php 5.6.26 & ubuntu: curl is missing from your system

sudo apt-get install php5.6-curl
sudo a2enmod proxy_fcgi setenvif
sudo a2enconf php5.6-fpm
sudo service apache2 reload

helped notices from php5.6-cur installing

Dr Web blocked my HOSTS file, how to fix?

Just reboot system and have access to read/write in it

symfony fixtures cannot delete or update a parent row

* you can add to problem entity field, which is described in error onDelete="set null"

* or deny to purge your database, add to your command key --append.

Unable to find mapping information for the class Context

Need to fully configure sonata-classification-bundle, its needed for modern versions of sonata-media.

admin_sonata_classification_context_create" as such route does not exist in SonataAdminBundle:Core:add_block.html.twig

just cache:clear and cache:clear -e prod

5 columns layout with Twitter Bootstrap

based on http://www.wearesicc.com/quick-tips-5-column-layout-with-twitter-bootstrap/ , modified for fitting 5 columns in any >320px width displays.

.col-xs-15,
.col-sm-15,
.col-md-15,
.col-lg-15 {
  position: relative;
  min-height: 1px;
  padding-right: 10px;
  padding-left: 10px;
}

@media (min-width: 320px) {
  .col-md-15 {
    width: 20%;
    float: left;
  }
}

And use it like this:

<div class="col-md-15 col-sm-3">
    ...
</div>