Builder plugin with OCMS4

Need Help
#1

Hi !

I used Rainlab’s Builder plugin in a new OctoberCMS 4 version.
But there’s this error in the plugin : getDoctrineSchemaManager does not exist

I posted an issue on github : getDoctrineSchemaManager doesn't exist · Issue #382 · rainlab/builder-plugin · GitHub

Thank you for your help !
jan