Question: How to add New "My Cart" links from the menu on customer account page?
[![](https://i.stack.imgur.com/SEXaP.png)](https://i.stack.imgur.com/SEXaP.png)

Answer: 
Giving full control (read/write/execute) to var and pub directory solved this issue for me.

```
sudo chmod -R 777 var pub

```

Or, you may also try running the command using sudo.

```
sudo php bin/magento setup:upgrade

```

Also, try clearing cache.

```
sudo rm -rf var/cache/* var/generation/*

```
This is permission issue. Kindly provide the necessary permissions to pub/ and var/ directories.

For more info, <http://devdocs.magento.com/guides/v2.1/config-guide/prod/prod_file-sys-perms.html>