I have installed SSMS 18 and SQL Server 2019.
I get this error when trying to import a .bacpac
file:
Could not load type 'Microsoft.SqlServer.TransactSql.ScriptDom.DropExternalStreamStatement' from assembly 'Microsoft.SqlServer.TransactSql.ScriptDom, Version=15.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91'. (Microsoft.Data.Tools.Schema.Sql)