老师，我配置logback时报错：

16:06:41,176 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter@32:19 - RuntimeException in Action for tag [encoder] java.lang.NumberFormatException: For input string: "{"
at java.lang.NumberFormatException: For input string: "{"
at at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)

报错的位置是springboot的启动类中的： SpringApplication.run(StartApp.class, args);这个一行

@SpringBootApplication
@EnableScheduling //开启定时任务
@EnableAsync //开启异步任务
public class StartApp {
public static void main(String[] args) {
SpringApplication.run(StartApp.class, args);
}
}

百度了很久，也没有类似问题的，清帮看看啥原因导致