3.1.x-dev php think migrate:run 运行报错

[yuanzhihai]

warning Migration contains both change() and up()/down() methods. Ignoring up() and down().
[TypeError]
Phinx\Db\Table\Index::setName(): Argument #1 ($name) must be of type string, null given, called in /vendor/topthink/think-migr
ation/phinx/Db/Table/Index.php on line 222