程序包org.springframework.boot.auto

可能是maven的setting文件设置错误了。
比如在linux系统下，如果~/.m2/setting.xml中为:

<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" 
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://mav$
  <!-- localRepository
   | The path to the local repository maven will use to store artifacts.
   |
   | Default: ${user.home}/.m2/repository
  <localRepository>/path/to/local/repo</localRepository>
  -->
  <localRepository>D:\Repositories\Maven</localRepository>
...

则D:\Repositories\Maven显然会把库都下载到带有特殊符号的路径，之后无法检索出。