Problems Upgrading from 2.1.3 to 2.1.5 (Urgent)

[Zerocard]

Hello,

I'm trying to upgrade magento from 2.1.3 to 2.1.5 through the backend, but I'm getting this "You're already using the latest version, there's nothing for us to do."

I even tried to do that using Composer, but yet getting another problem "The requested package magento/product-community-edition 2.1.5 exists as magento/product-community-edition[2.1.3] but these are rejected by your constraint."

And when i went to components manager i got the following error after debugging it "GET componentGrid/components 500 (Internal Server Error)" I went to that path to check what's going on, and i found this:

I really need help to get this issues solved ASAP, i believe by upgrading the platform all of these problems should be solved automatically.

[ShoaibRehman89]

@Zerocard

Try doing the following: 

• Remove cache, di, view_preprocessed and page_cache directories
• Make sure that 2.1.5 is set as the Magento version in your composer.json file
• Re-run composer
• Run system upgrade
• Run system compile
• Deploy static content 

I hope this will fix the issue. If not then it's best to check the system.log file for any possible issues. 

[Zerocard]

I got this when i did do the following:

composer require magento/product-community-edition 2.1.5

  Problem 1
    - Installation request for colinmollenhour/php-redis-session-abstract (locked at v1.1) -> satisfiable by colinmollenhour/php-redis-session-abstract[v1.1].
    - magento/product-community-edition 2.1.5 requires colinmollenhour/php-redis-session-abstract 1.2 -> satisfiable by colinmollenhour/php-redis-session-abstract[v1.2].
    - magento/product-community-edition 2.1.5 requires colinmollenhour/php-redis-session-abstract 1.2 -> satisfiable by colinmollenhour/php-redis-session-abstract[v1.2].
    - Conclusion: don't install colinmollenhour/php-redis-session-abstract v1.2
    - Installation request for magento/product-community-edition 2.1.5 -> satisfiable by magento/product-community-edition[2.1.5].