Rules created with Rule Engine "gone" but the json file for them still exists in the jsondb folder

Setup, Configuration and Use Scripts & Rules
1

Rules created with Rule Engine “gone” (“No rules defined yet.”) but the json file for them still exists in the jsondb folder).

I just upgraded my openhabian to the latest openhab version and after the upgrade/update the rules section in the Paper UI is showing No rules defined yet.

What can I do to fix it ?

2

Have you rebooted since the upgrade?

sudo systemctl stop openhab2

sudo reboot

3

I am rebooting right now.

Lets see if that works.

I found this thread: Experimental Rules Engine - How to delete or recover rules from OH2.3 (stable) within OH2.4 (stable)

Did the format of the rules change ?

4

Not sure.

Did you make a backup before upgrading?

5

There was a change in the rule format:

NEW FORMAT:

  "1f09b532-f457-4552-9df9-92d12bc9d502": {
    "class": "org.eclipse.smarthome.automation.dto.RuleDTO",
    "value": {
      "triggers": [
        {
          "id": "1",
          "label": "it is a fixed time of day",
          "description": "Triggers at a specified time",
          "configuration": {
            "time": "00:30"
          },
          "type": "timer.TimeOfDayTrigger"
        }
      ],
      "conditions": [],
      "actions": [
        {
          "inputs": {},
          "id": "2",
          "label": "send a command",
          "description": "Sends a command to a specified item.",
          "configuration": {
            "itemName": "WlanSteckdose1_Switch",
            "command": "OFF"
          },
          "type": "core.ItemCommandAction"
        }
      ],
      "configuration": {},
      "configDescriptions": [],
      "uid": "1f09b532-f457-4552-9df9-92d12bc9d502",
      "name": "T1",
      "tags": [],
      "visibility": "VISIBLE",
      "description": "T2"
    }
  }

OLD FORMAT:

 "rule_2": {
    "class": "org.eclipse.smarthome.automation.Rule",
    "value": {
      "triggers": [
        {
          "id": "1",
          "label": "it is a fixed time of day",
          "description": "Triggers at a specified time",
          "configuration": {
            "properties": {
              "time": "00:30"
            }
          },
          "type": "timer.TimeOfDayTrigger"
        }
      ],
      "conditions": [],
      "actions": [
        {
          "id": "2",
          "label": "send a command",
          "description": "Sends a command to a specified item.",
          "configuration": {
            "properties": {
              "itemName": "WlanSteckdose1_Switch",
              "command": "OFF"
            }
          },
          "type": "core.ItemCommandAction"
        }
      ],
      "configuration": {
        "properties": {}
      },
      "configDescriptions": [],
      "uid": "rule_2",
      "name": "Timer Steckdose - Garten - Ausschalten",
      "tags": [],
      "description": "Ausschalten zu gegebener Zeit"
    }
  }

Is there any way to automatically convert the old rules to the new format ?