How to solve the problem (composer update, Ubuntu 16.04)?

Question

ubuntu

I do a composer update :

I go to Google and find a solution - they say you need to install php5-mcrypt . I run the command:
sudo apt-get install php5-mcryptError " E: Package 'php5-mcrypt' has no installation candidate
" I google, I find the solution: askubuntu.com/questions/756181/installing-php-5-6-...
I delete everything related to php- 7. I install as there php5+. Then I try to run the previous composer command, same error. Then I try to install askubuntu.com/questions/570979/ubuntu-server-12-04... like this. I add the repository, then php5-mcrypt. I run the command:
sudo apt-get install php5-mcryptError " E: Package 'php5-mcrypt' has no installation candidate

Answer 1

So open the source and see what the problem is there. In fact, if you didn’t pick anything in the vendor folder (I hope not, but you never know), then just demolish it and try composer update again (and no sudo for composer, never except sudo composer self-update !!!).