手机网络正常，但是调用connection.hasDefaultNet()接口失败

{ 
  "module" : { 
    // ... 
    "requestPermissions":[ 
      { 
        "name" : "ohos.permission.GET_NETWORK_INFO", 
        "reason": "$string:reason", 
        "usedScene": { 
          "abilities": [ 
            "FormAbility" 
          ], 
          "when":"inuse" 
        } 
      }, 
}