背景：
在通过微信小程序中的getLocation()进行定位时，出现了该错误
解决办法：
给 app.json 里面增加 permission 权限配置即可，如下代码：
"permission": {
"scope.userLocation": {
"desc": "你的位置信息将用于小程序位置接口的效果展示"
}
}, 全部 app.json文件如下：
{
"pages":[
"pages/index/index",
"pages/service/service",
"pages/cemetery/cemetery",
"pages/me/me",
"pages/search/search",
"pages/details/details",
"pages/order/order",
"pages/successful/successful",
"pages/myorder/myorder",
"pages/orderdetails/orderdetails",
"pages/