Well to install this exact version with composer this is correct in composer.json?

composer.json :

“require”: {
“cakephp/cakephp”: “3.2.1”
}
I plan install cakePHP live on server via composer CentOS7.2/PHP7/MySQL5.6

well to install this exact version with composer this is correct in composer.json???

the below is wrong>>> with tidle ~ // WHAT ~ DO?

“cakephp/cakephp”: “~3.2.1”

Until I see this correct, but check how to put it in composer.json. Check the version of cake you are using. The problem you should be facing seems to be the version you are putting that should not be the same as the framework.
The link below shows how to write inside the file composer.json

Https://getcomposer.org/doc/01-basic-usage.md