error_unexpected Could not format because the source could not be parsed:

```bash
➜ j2game get generate model on home with assets/modules/gameRecommend.json
```

the json file

```json
{
"data": [{
"gid": 1,
"title": "(幻世) 真龙之翼",
"classify": null,
"language": null,
"runsys": null,
"expenses": null,
"author": null,
"lable": null,
"cover": "/img/j2me/1/03e8d9ea3e9e46d3a08751dd00d625dc1594552821390.png",
"intr": null,
"imgsrc": null,
"score": 10.0,
"down": 398,
"type": "public",
"state": "正常",
"access": "free",
"upuser": null,
"update": "2021-05-18",
"_classify": null,
"user": null
}, {
"gid": 107,
"title": "宠物王国5 彩虹",
"classify": null,
"language": null,
"runsys": null,
"expenses": null,
"author": null,
"lable": null,
"cover": "/img/j2me/1/fdc7957281cf46a995b0be06c67f84f81597039775839.png",
"intr": null,
"imgsrc": null,
"score": 10.0,
"down": 245,
"type": "public",
"state": "正常",
"access": "free",
"upuser": null,
"update": "2021-05-18",
"_classify": null,
"user": null
}, {
"gid": 113,
"title": "彩虹城堡3-命运的征途",
"classify": null,
"language": null,
"runsys": null,
"expenses": null,
"author": null,
"lable": null,
"cover": "/img/j2me/1/ac2ce01426a74252adfab9dfd41740f01597189817798.png",
"intr": null,
"imgsrc": null,
"score": 10.0,
"down": 65,
"type": "public",
"state": "正常",
"access": "free",
"upuser": null,
"update": "2021-05-18",
"_classify": null,
"user": null
}, {
"gid": 114,
"title": "宠物王国6 烈火",
"classify": null,
"language": null,
"runsys": null,
"expenses": null,
"author": null,
"lable": null,
"cover": "/img/j2me/1/57c68b38773945158853e868af3b490f1597198311116.png",
"intr": null,
"imgsrc": null,
"score": 10.0,
"down": 323,
"type": "public",
"state": "正常",
"access": "free",
"upuser": null,
"update": "2021-05-18",
"_classify": null,
"user": null
}, {
"gid": 122,
"title": "哆啦A梦-三国狂想曲",
"classify": null,
"language": null,
"runsys": null,
"expenses": null,
"author": null,
"lable": null,
"cover": "/img/j2me/2/c20f553e213f4b5abcd51af5e87288fa1597208989141.png",
"intr": null,
"imgsrc": null,
"score": 10.0,
"down": 105,
"type": "public",
"state": "正常",
"access": "free",
"upuser": null,
"update": "2021-05-18",
"_classify": null,
"user": null
}, {
"gid": 132,
"title": "开心农场",
"classify": null,
"language": null,
"runsys": null,
"expenses": null,
"author": null,
"lable": null,
"cover": "/img/j2me/6/addac624e7f54957ba867532dd5167f01597294460412.png",
"intr": null,
"imgsrc": null,
"score": 10.0,
"down": 333,
"type": "public",
"state": "正常",
"access": "free",
"upuser": null,
"update": "2021-05-18",
"_classify": null,
"user": null
}],
"msg": "查询结果",
"code": "100"
}
```

the error log, What happened?
```log
ine 2, column 7 of .: Methods must have an explicit list of parameters.
╷
2 │ List? data;
│ ^
╵
line 2, column 7 of .: Operator declarations must be preceded by the keyword 'operator'.
╷
2 │ List? data;
│ ^
╵
line 2, column 15 of .: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
╷
2 │ List? data;
│ ^^^^
╵
line 2, column 15 of .: A function body must be provided.
╷
2 │ List? data;
│ ^^^^
╵
line 2, column 3 of .: Expected to find ';'.
╷
2 │ List? data;
│ ^^^^
╵
line 2, column 8 of .: Types parameters aren't allowed when defining an operator.
╷
2 │ List? data;
│ ^^^^^^
╵
line 2, column 3 of .: Variables must be declared using the keywords 'const', 'final', 'var' or a type name.
╷
2 │ List? data;
│ ^^^^
╵
line 2, column 7 of .: The string '?' isn't a user-definable operator.
╷
2 │ List? data;
│ ^
╵
```