Idea--解决character ‘@‘ that cannot start any token. (Do not use @ for indentation

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简介

本文介绍如何解决character ‘@‘ that cannot start any token. (Do not use @ for indentation这个问题。

问题描述

有时候，IDEA突然运行不了项目了，之前是可以的，报错信息为：

21:34:05.973 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
org.yaml.snakeyaml.scanner.ScannerException: while scanning for the next token
found character '@' that cannot start any token. (Do not use @ for indentation)
 in 'reader', line 5, column 13:
        active: @env@
                ^

原因分析

maven没有同步。 

方法

做完下边四步，一定能解决。

1. 重启IDEA
2. maven clean
3. maven compile
4. maven package