RangeError (end): Invalid value: Only valid value is 0: 1 when generating model - flutter

Question

Getting the error RangeError (end): Invalid value: Only valid value is 0: 1 when generating model when I try to generate model
Expected Behavior
when I use this command get generate model on match_details with assets/models/to_get/match_details.json
it should be creating a model inside the match_details folder with the fields inside the JSON file mentioned.
Current Behavior
When I try to do this I get the error RangeError (end): Invalid value: Only valid value is 0: 1 when generating model** when I try to generate model
Possible Solution
Am sure it is something about parsing the JSON file
More info
here is what the JSON file looks like
{
"success": true,
"details": {
"id": 22,
"date_time": "2022-04-12T20:00:00Z",
"home_team": {
"id": 69,
"home_strip": {
"id": 15,
"image": "/uploads/strip_5_0py3QXM.png"
},
"away_strip": {
"id": 16,
"image": "/uploads/WhatsApp_Image_2022-03-09_at_10.24.56_AM.jpeg"
},
"players": [{
"id": 47,
"is_cap": false,
"average_skill": 3,
"region": {
"id": 13,
"name_ar": "التجمع الخامس",
"name_en": "Fifth Settlement",
"state": {
"id": 8,
"name_ar": "القاهره",
"name_en": "Cairo"
}
},
"first_name": "Ezz El Din",
"last_name": "Karim",
"mobile": "01113481110",
"email": null,
"image": null,
"positions_ar": [{
"مدافع": 3
}],
"positions_en": [{
"CB": 3
}],
"basic_skills_ar": [{
"السرعة": 4
},
{
"تمرير الكرة": 3
},
{
"تسديد": 2
}
],
"basic_skills_en": [{
"speeding": 4
},
{
"Passing": 3
},
{
"shooting": 2
}
]
}],
"cap": {
"id": 46,
"is_cap": true,
"average_skill": 3,
"region": {
"id": 13,
"name_ar": "التجمع الخامس",
"name_en": "Fifth Settlement",
"state": {
"id": 8,
"name_ar": "القاهره",
"name_en": "Cairo"
}
},
"first_name": "Karim",
"last_name": "Garrana",
"mobile": "01113332257",
"email": "karim.garrana#gmail.com",
"image": null,
"positions_ar": [{
"مهاجم": 3
},
{
"مدافع": 4
}
],
"positions_en": [{
"ST": 3
},
{
"CB": 4
}
],
"basic_skills_ar": [{
"السرعة": 3
},
{
"تمرير الكرة": 3
},
{
"تسديد": 3
}
],
"basic_skills_en": [{
"speeding": 3
},
{
"Passing": 3
},
{
"shooting": 3
}
]
},
"average_skill": 3,
"points": 0,
"name": "كوبرا",
"league": 25,
"logo": "/uploads/9_IApeihR.png",
"region_ar": "التجمع الخامس",
"region_en": "Fifth Settlement"
},
"away_team": {
"id": 68,
"home_strip": {
"id": 14,
"image": "/uploads/strip_6.png"
},
"away_strip": {
"id": 13,
"image": "/uploads/strip_5.png"
},
"players": [{
"id": 46,
"is_cap": true,
"average_skill": 3,
"region": {
"id": 13,
"name_ar": "التجمع الخامس",
"name_en": "Fifth Settlement",
"state": {
"id": 8,
"name_ar": "القاهره",
"name_en": "Cairo"
}
},
"first_name": "Karim",
"last_name": "Garrana",
"mobile": "01113332257",
"email": "karim.garrana#gmail.com",
"image": null,
"positions_ar": [{
"مهاجم": 3
},
{
"مدافع": 4
}
],
"positions_en": [{
"ST": 3
},
{
"CB": 4
}
],
"basic_skills_ar": [{
"السرعة": 3
},
{
"تمرير الكرة": 3
},
{
"تسديد": 3
}
],
"basic_skills_en": [{
"speeding": 3
},
{
"Passing": 3
},
{
"shooting": 3
}
]
}],
"cap": {
"id": 45,
"is_cap": false,
"average_skill": 4,
"region": {
"id": 11,
"name_ar": "ميامى",
"name_en": "Miami",
"state": {
"id": 7,
"name_ar": "الإسكندرية",
"name_en": "Alexandria"
}
},
"first_name": "Ahmed",
"last_name": "Wagdi",
"mobile": "01207199086",
"email": "ahmed.w.amin#gmail.com",
"image": "/uploads/90f1e1c9-b430-4f9c-8347-a86be57f58676954964268664537546.jpg",
"positions_ar": [{
"مدافع": 5
}],
"positions_en": [{
"CB": 5
}],
"basic_skills_ar": [{
"تسديد": 5
},
{
"تمرير الكرة": 5
},
{
"السرعة": 5
}
],
"basic_skills_en": [{
"shooting": 5
},
{
"Passing": 5
},
{
"speeding": 5
}
]
},
"average_skill": 4,
"points": 2,
"name": "المنتقمون",
"league": 25,
"logo": "/uploads/6.png",
"region_ar": "التجمع الخامس",
"region_en": "Fifth Settlement"
},
"location": {
"id": 8,
"name_ar": "مدرسة الكابيتال",
"name_en": "Capital School",
"location": "30.014650515430546,31.4582347869873",
"region": 13
}
}
}