企业微信导入weixin-java-cp-demo项目编译报错

[chengli323232]

```
ERROR org.springframework.boot.SpringApplication - Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'wxCpConfiguration': Invocation of init method failed; nested exception is java.lang.NullPointerExcept
```
```
Caused by: java.lang.NullPointerException: null
at com.github.binarywang.demo.wx.cp.config.WxCpConfiguration.initServices(WxCpConfiguration.java:73)
```