How to install plugin in Craft 3 I've tried installing a plugin to my Craft 3 local installation. I ran this from the command line in my project root:

composer require boboldehampsink/import but, this error was returned

craft/plugins/import/ does not exist and could not be created.

Thanks if anyone can help.
You are trying to install a Craft 2.x plugin, which you can see, among other things, by looking at its composer.json. Craft 3 plugins will always have a "extra property with a "handle" defined.

"extra": {
    "handle": "plugin-handle",
}


The currently latest release of the Import plugin is v0.8.33, and is not compatible with Craft 3:
https://github.com/boboldehampsink/import/blob/0.8.33/composer.json

Until the plugin store goes live, most plugin developers note their compatible plugins in this list:
https://github.com/craftcms/plugins