How do I update Drush to the latest available version?

Question

On my Mac Mini running OS X 10.11, I installed Acquia Dev Desktop 2 which comes with Drush 8.0.0 rc1. I created a local site which uses Drupal 8, and all went fine; the only problem is that for every Drush command I try, I get an error about a wrong placeholder; the error message gets repeated enough times to make the console output scroll up. For example, with drush status, I get the following error messages:

Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !other FormattableMarkup.php:240
Invalid placeholder: !fields FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !type FormattableMarkup.php:240
Invalid placeholder: !type FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !type FormattableMarkup.php:240
Invalid placeholder: !type FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !type FormattableMarkup.php:240
Invalid placeholder: !type FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !type FormattableMarkup.php:240
Invalid placeholder: !type FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240
Invalid placeholder: !default FormattableMarkup.php:240

The command then executes normally, giving me the following output:

Drupal version : 8.0.0
Site URI : http://default
Database driver : mysql
Database hostname : 127.0.0.1
Database port : 33067
Database username : drupaluser
Database name : tero
Drupal bootstrap : Successful
Drupal user :
Default theme : bartik
Administration theme : seven
PHP executable : /Applications/DevDesktop/php5_5/bin/php
PHP configuration : /Applications/DevDesktop/php5_5/bin/php.ini
PHP OS : Darwin
Drush script : /Applications/DevDesktop/drush/vendor/drush/drush/drush.php
Drush version : 8.0.0-rc1
Drush temp directory : /tmp
Drush configuration : /Applications/DevDesktop/drush/vendor/drush/drush/drushrc.php
Drush alias files : /Users/kiamlaluno/.acquia/DevDesktop/Drush/Aliases/aliases.drushrc.php
Install profile : standard
Drupal root : /Users/kiamlaluno/Sites/devdesktop/tero
Site path : sites/default
File directory path : sites/default/files
Temporary file directory path : /tmp
Sync config path : sites/tero.dd/files/config_05LkLxb13V9Aql8lLTwnzSDjZKUwSM1QqJosn6985ubZ7AvwwnV1j8I6FHt qunj1liphJjAVpw/sync

Still, I would like to avoid these error messages.

How do I update Drush without installing it globally?
I don't want to install it globally because I am using the console Acquia Dev Desktop opens for me, and its Drush takes the precedence over any other command.

It depends how it was installed - these days it should be as simple as cd /path/to/drush; git pull; composer install, or whatever slight variation makes sense — Clive, Commented Dec 4, 2015 at 13:36
Acquia Dev Desktop comes with an installer which installs the application, which contains all the files it needs (since a OS X application is essentially a directory containing an executable and other files). — avpaderno, Commented Dec 4, 2015 at 14:04
ls -al (which drush) @kiam, that'll tell you where it's executing. cd to that folder, then run the other commands. If it's inside an OSX package that's fine, the command line doesn't treat those any differently to a normal folder — Clive, Commented Dec 4, 2015 at 14:08
Acquia Dev Desktop is terrible to use, I'm usually avoiding this whenever possible. — kenorb, Commented Dec 4, 2015 at 14:54
Agreed @kenorb, Homebrew makes it so easy to install a proper stack that tools like Acquia Dev Desktop should commit hari kari ASAP and stop confusing people (in my opinion). And if homebrew is too much effort, it gets even easier. Still, for those stuck with Acquia, this is an important question I guess — Clive, Commented Dec 4, 2015 at 15:09

avpaderno · Accepted Answer · 2016-02-24 08:11:47Z

These are the commands I have executed from the terminal to update Drush.

cd /Applications/DevDesktop/drush
rm -rf vendor/drush/drush
rm -rf vendor/bin/drush*
rm -rf vendor/psy
rm -rf vendor/bin/psysh
composer.phar require drush/drush:8.*

I was following Introducing Drush 8 (Composer Users Downloading Stable Versions of Drush), where the suggested command to update Drush (although globally) is composer global require drush/drush:8.*. When I tried the following commands, I got an error message.

cd /Applications/DevDesktop/drush
composer.phar require drush/drush:8.*

The error message was the following one:

./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

Problem 1
- Conclusion: don't install drush/drush 8.0.1
- Removal request for drush/drush == 8.0.0.0-RC1
- Installation request for drush/drush 8.* -> satisfiable by drush/drush[8.0.0, 8.0.1, 8.0.0-rc1].
- Conclusion: remove psy/psysh v0.5.2
- Can only install one of: psy/psysh[v0.6.0, v0.5.2].
- Can only install one of: psy/psysh[v0.6.0, v0.5.2].
- drush/drush 8.0.0 requires psy/psysh ~0.6 -> satisfiable by psy/psysh[v0.6.0, v0.6.1].
- Conclusion: don't install psy/psysh v0.6.1|keep psy/psysh v0.5.2
- Installation request for psy/psysh == 0.5.2.0 -> satisfiable by psy/psysh[v0.5.2].

Installation failed, reverting ./composer.json to its original content.

ValRob · Accepted Answer · 2018-03-17 10:11:07Z

0

Maybe a little old question, but in 2018 we still have problems with that. First go to the tools folder in the DevDestktop

cd /Applications/DevDesktop/tools/

You can check in the composer.json file wich version do you have, currently drush 8.1.10..

So, for update to the last stable version run the next command:

composer require drush/drush 8.1.15

You can check your version, by running drush --version

answered Mar 17, 2018 at 10:11

ValRob

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