The installation of this plugin fails with the following exception: "SQLSTATE[HY000]: General error: 1 Cannot add a NOT NULL column with default value NULL (SQL: alter table "users" add column "role_id" integer not null)" on line 664 of C:\xampp\htdocs\techmix\vendor\laravel\framework\src\Illuminate\Database\Connection.php

Don't know if is happening to someone else.

Hi There is no instruction in migration to set role_id default value to null. May be there are some general db settings that cause this

Hi Vdomah, I also got this error while installing your Roles plugin.

I made the following change (assuming role_id field can be a nullable field):
Changed the following line in the file:
update/users_add_role_id_column.php
from:
$table->integer('role_id');
to:
$table->integer('role_id')->nullable();

After making the changes, used the octobercms backend to install the plugin, the problem got resolved.

mugunth said:

Hi Vdomah, I also got this error while installing your Roles plugin.

I made the following change (assuming role_id field can be a nullable field):
Changed the following line in the file:
update/users_add_role_id_column.php
from:
$table->integer('role_id');
to:
$table->integer('role_id')->nullable();

After making the changes, used the octobercms backend to install the plugin, the problem got resolved.

Hello! You seems to be fixing the old plugin version. Because, firstly role_id column is renamed to vdomah_role_id according to new OctoberCMS plugin guidelines (from v1.3.0).

Secondly, the vdomah_role_id column was made nullable in v1.3.8 (Oct 09, 2020).