在我运行 Ubuntu 16.04 的 AWS ec2 实例之一上，我的 /var/syslog 中填充了以下错误。
Jul 17 18:11:21 Mysql-Slave systemd[1]: Stopped The CloudWatch Logs agent.
Jul 17 18:11:21 Mysql-Slave systemd[1]: Started The CloudWatch Logs agent.
Jul 17 18:11:26 Mysql-Slave systemd[1]: awslogs.service: Main process exited, code=exited, status=255/n/a
Jul 17 18:11:26 Mysql-Slave systemd[1]: awslogs.service: Unit entered failed state.
Jul 17 18:11:26 Mysql-Slave systemd[1]: awslogs.service: Failed with result 'exit-code'.
Jul 17 18:11:26 Mysql-Slave systemd[1]: awslogs.service: Service hold-off time over, scheduling restart.
Jul 17 18:11:26 Mysql-Slave systemd[1]: Stopped The CloudWatch …我尝试运行以下代码，但在 Scala 3.0.0 上出现错误：
// saved as file Upper1.scala
class Upper1:
def convert(strings: Seq[String]): Seq[String] =
strings.map((s: String) => s.toUpperCase)
val up = new Upper1()
val uppers = up.convert(List("Hello", "World!"))
println(uppers)
% scala Upper1.scala
-- [E080] Syntax Error: /Users/Deb/Desktop/Temp/Upper1.scala:7:0 ------------
7 |println(uppers)
|^^^^^^^
|Expected a toplevel definition
1 error found
Error: Errors encountered during compilation
我运行不正确吗？