found character ‘@‘ that cannot start any token

问题内容如下

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 6, column 9:
      name: @name@

对应问题application.yml

app:
  java:
    # 引用pom.xml文件中的属性
    version: @java.version@
  sourceEncoding: @project.build.sourceEncoding@
  name: @name@
  version:

解决方法

将@@用单引号引起来，修改后的内容如下

app:
  java:
    # 引用pom.xml文件中的属性
    version: '@java.version@'
  sourceEncoding: '@project.build.sourceEncoding@'
  name: '@name@'
  version: '@version@'