Why users.insert(Expression<String?>("name") <- "NAME") is error?

[SunshineDays]

    let path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
    let db = try? Connection("\(path)/db.sqlite3")
    let users = Table("users")
    let id = Expression<Int64>("id")
    let name = Expression<String?>("name")
    let email = Expression<String>("email")

    try! db?.run(users.create(ifNotExists: true, block: { (table) in
        table.column(id, primaryKey: true)
        table.column(name)
        table.column(email, unique: true)
    }))

let insert = users.insert(Expression<String?>("name") <- "NAME") "<-" is failed Operator is not a known binary operator

I hope some kind-hearted people help me solve it！Thanks！

[sunxxg]

Are you using ObjectMapper Or overloaded the ‘<-’ operator?

[nathanfallet]

Please ask on StackOverflow for this kind of questions (we are tracking bugs on GitHub)