NoSuchMethodError: NoSuchMethodError: The getter 'isNegative' was called on null.

{
  "id": "7285286293",
  "shareId": null,
  "shortId": "JORDSABUY-APP-2MD",
  "title": "NoSuchMethodError: NoSuchMethodError: The getter 'isNegative' was called on null.",
  "culprit": "number_format.dart in NumberFormat._signPrefix",
  "permalink": "https://aniccom.sentry.io/issues/7285286293/",
  "logger": null,
  "level": "fatal",
  "status": "unresolved",
  "statusDetails": {},
  "substatus": "ongoing",
  "isPublic": false,
  "platform": "other",
  "project": {
    "id": "1483358",
    "name": "Jordsabuy Mobile App",
    "slug": "jordsabuy-app",
    "platform": "dart"
  },
  "type": "error",
  "metadata": {
    "value": "NoSuchMethodError: The getter 'isNegative' was called on null.\nReceiver: null\nTried calling: isNegative",
    "type": "NoSuchMethodError",
    "filename": "number_format.dart",
    "function": "NumberFormat._signPrefix",
    "in_app_frame_mix": "mixed",
    "sdk": {
      "name": "sentry.dart.flutter",
      "name_normalized": "sentry.dart"
    },
    "initial_priority": 75,
    "title": null
  },
  "numComments": 0,
  "assignedTo": null,
  "isBookmarked": false,
  "isSubscribed": false,
  "subscriptionDetails": null,
  "hasSeen": false,
  "annotations": [],
  "issueType": "error",
  "issueCategory": "error",
  "priority": "high",
  "priorityLockedAt": null,
  "seerFixabilityScore": null,
  "seerAutofixLastTriggered": null,
  "seerExplorerAutofixLastTriggered": null,
  "isUnhandled": true,
  "count": "50",
  "userCount": 1,
  "firstSeen": "2026-02-23T08:35:29.568000Z",
  "lastSeen": "2026-05-22T12:18:35.151000Z",
  "stats": {
    "24h": [
      [
        1781157600,
        0
      ],
      [
        1781161200,
        0
      ],
      [
        1781164800,
        0
      ],
      [
        1781168400,
        0
      ],
      [
        1781172000,
        0
      ],
      [
        1781175600,
        0
      ],
      [
        1781179200,
        0
      ],
      [
        1781182800,
        0
      ],
      [
        1781186400,
        0
      ],
      [
        1781190000,
        0
      ],
      [
        1781193600,
        0
      ],
      [
        1781197200,
        0
      ],
      [
        1781200800,
        0
      ],
      [
        1781204400,
        0
      ],
      [
        1781208000,
        0
      ],
      [
        1781211600,
        0
      ],
      [
        1781215200,
        0
      ],
      [
        1781218800,
        0
      ],
      [
        1781222400,
        0
      ],
      [
        1781226000,
        0
      ],
      [
        1781229600,
        0
      ],
      [
        1781233200,
        0
      ],
      [
        1781236800,
        0
      ],
      [
        1781240400,
        0
      ]
    ]
  }
}

{
  "id": "82af1ddd4504421cb1c2d86886cf79e0",
  "event.type": "error",
  "groupID": "7285286293",
  "eventID": "82af1ddd4504421cb1c2d86886cf79e0",
  "projectID": "1483358",
  "message": "",
  "title": "NoSuchMethodError: NoSuchMethodError: The getter 'isNegative' was called on null.",
  "location": "number_format.dart",
  "culprit": "number_format.dart in NumberFormat._signPrefix",
  "user": {
    "id": "c872c401e76a4a88b026a6615aa1dd06",
    "email": null,
    "username": null,
    "ip_address": null,
    "name": null,
    "geo": {
      "country_code": "TH",
      "city": "Bangkok",
      "region": "Thailand"
    },
    "data": null
  },
  "tags": [
    {
      "key": "dart",
      "value": "Dart 3.11.0 (stable)"
    },
    {
      "key": "dart.name",
      "value": "Dart"
    },
    {
      "key": "device",
      "value": "SM-F741B"
    },
    {
      "key": "device.class",
      "value": "high"
    },
    {
      "key": "device.family",
      "value": "SM-F741B"
    },
    {
      "key": "environment",
      "value": "production"
    },
    {
      "key": "event.environment",
      "value": "dart"
    },
    {
      "key": "event.origin",
      "value": "flutter"
    },
    {
      "key": "flutter.name",
      "value": "Flutter"
    },
    {
      "key": "flutter0",
      "value": "Flutter 3.41.1 (stable)"
    },
    {
      "key": "flutter0.name",
      "value": "Flutter"
    },
    {
      "key": "handled",
      "value": "no"
    },
    {
      "key": "level",
      "value": "fatal"
    },
    {
      "key": "mechanism",
      "value": "FlutterError"
    },
    {
      "key": "os",
      "value": "Android 16"
    },
    {
      "key": "os.build",
      "value": "BP2A.250605.031.A3.F741BXXS3CZC5"
    },
    {
      "key": "os.name",
      "value": "Android"
    },
    {
      "key": "os.rooted",
      "value": "no"
    },
    {
      "key": "dist",
      "value": "84"
    },
    {
      "key": "release",
      "value": "com.jordsabuyapp@2.7.4+84"
    },
    {
      "key": "user",
      "value": "id:c872c401e76a4a88b026a6615aa1dd06",
      "query": "user.id:\"c872c401e76a4a88b026a6615aa1dd06\""
    }
  ],
  "platform": "other",
  "dateCreated": "2026-05-22T12:18:35Z",
  "crashFile": null,
  "metadata": {
    "filename": "number_format.dart",
    "function": "NumberFormat._signPrefix",
    "in_app_frame_mix": "mixed",
    "type": "NoSuchMethodError",
    "value": "NoSuchMethodError: The getter 'isNegative' was called on null.\nReceiver: null\nTried calling: isNegative"
  }
}