一个空指针异常

[a2012s]

java.lang.NullPointerException
Attempt to invoke virtual method 'void android.view.View.resolveLayoutParams()' on a null object reference
com.scwang.smart.refresh.layout.SmartRefreshLayout.onLayout(SmartRefreshLayout.java:651)

使用的是这个版本：
implementation 'io.github.scwang90:refresh-layout-kernel:2.0.6' //核心必须依赖
implementation 'io.github.scwang90:refresh-header-classics:2.0.6' //经典刷新头
// implementation 'com.scwang.smart:refresh-header-radar:2.0.3' //雷达刷新头
// implementation 'com.scwang.smart:refresh-header-falsify:2.0.3' //虚拟刷新头
// implementation 'com.scwang.smart:refresh-header-material:2.0.3' //谷歌刷新头
// implementation 'com.scwang.smart:refresh-header-two-level:2.0.3' //二级刷新头
// implementation 'com.scwang.smart:refresh-footer-ball:2.0.3' //球脉冲加载
implementation 'io.github.scwang90:refresh-footer-classics:2.0.6' //经典加载