Migration error

[laxity7]

When applying of migration there is an error

PHP Strict Warning 'yii\base\ErrorException' with message 'Declaration of m140501_075311_add_oauth2_server::primaryKey() should be compatible with yii\db\Migration::primaryKey($length = NULL)'

Need set Null on default in primaryKey function public function primaryKey($columns = null) or rename function

[nadeemse]

Thanks Man,
$columns = null save my hour.

[ruslanbes]

Setting $columns = null worked for me too (Postgres 9.4). Although seems very odd. The parent function clearly expects int and not an array of columns. It seems renaming to avoid this conflict is the correct solution, created PR.