将vaporpostgresql连接器添加到Package.swift后出现构建错误importPackageDescriptionletpackage=Package(name:"todo_vapor_swift",dependencies:[.Package(url:"https://github.com/vapor/vapor.git",majorVersion:1,minor:5),.Package(url:"https://github.com/vapor/postgresql-provider",majorVersion:1,minor:0)],exclude:["Conf