Download the Cart2Quote_Quotation and Cart2Quote_AutoProposal module zip files (sent to you by e-mail). Copy and paste each module to your store’s webroot/app/code/Cart2Quote/ directory.
* Create the above directory if necessary.
Your module will be enabled by default after installation, but if you wish to make sure, open your terminal and navigate to your Magento root directory. From your root directory execute
php bin/magento module:enable Cart2Quote_Quotation --clear-static-content
php bin/magento module:enable Cart2Quote_AutoProposal --clear-static-content
rm -rf var/generation/* var/cache/* pub/static/frontend/* pub/static/adminhtml/* var/page_cache/* var/di/* var/di
If you’re on Magento 2.2.x or higher
run the following command:
rm -rf generated/code* generated/metadata/* pub/static/* var/cache* var/page_cache/* var/page_cache/* var/view_preprocessed/*
php bin/magento setup:upgrade

php bin/magento setup:di:compile
(Note: This can take a couple of minutes and it can use a lot of memory, make sure to set max_execution_time = 600 and memory_limit = 512M. The last line should look like this: Generated code and dependency injection configuration successfully.)
php bin/magento setup:static-content:deploy
(Note: This can take a couple of minutes, make sure that PHP has enough execution time in CLI, otherwise your design breaks. The last line should look like this: New version of deployed files: 1457687534)
After this step, Cart2Quote is successfully installed.