Type string is not a subtype of type datetime. Provide details and share your research! But avoid ….
Type string is not a subtype of type datetime. 0 Type 'DateTime' is not a subtype of type 'TZDateTime?' in Flutter Project I am setting the current date in firebase and trying to retrieve it to use as a reference. For example @JsonSerializable(explicitToJson: true) class Artist { String name; String listeners; @JsonKey(defaultValue: '') String mid; } I want to fetch meetings from Firestore and map them into the following Meeting model: part 'meeting. And the data for xAxis si just type 'datetime' and not fetch from anywhere. All the objects sent to the different . required this. (String) => String can only take a string. selectedDate = selectedTime; // 2nd assign with a TimeOfDay Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. map((x) => Product. So, you just need to use async to me method and await to that _userDateTime like _userDateTime = await Provider. Reload to refresh your session. from(jsonData. So whenever i navigate to history page in the app it throws exception stating type 'String' is not a subtype of type 'Timestamp'. Q&A for work. final List<dynamic> Json = json. id You need to convert the data type. Can anybody help me? I just Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. 0. ! – Its Null safety issue when you are accessing: json["dateTime"] this value and parsing into DateTime like:-DateTime. Daily Updated! It's not! (Object) => String can take any object. parse(json["dateTime"] and if this value json["dateTime"] will be null then this issue will be occure. fromJson() methods need to be converted to Map<String, dynamic>, not just results. And your problem is solved. Thanks for pointing me into the right direction! – Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company sorry for my late reply. Find 100% working, tested solutions for Flutter and Dart related issues. DateTime _selectedTime = DateTime. apk due to the different fingerprint. class UserModel { late String userKey; late String nickname; late String email; late List<String> listItem; // error!! The best approach is to use annotations from this package. Usually, it happens when you retrieve a date from the database and pass the Another exception was thrown: TypeError: "2024-02-02T14:13:44": type 'String' is not a subtype of type 'DateTime?' I've been troubleshooting this for a while now, If anyone has Flutter Fixes. Hot Network Questions A novel where humans have to fight against huge spider-like aliens, and only veterans can vote Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company You try to assign twice your widget. value every time you access the controller's obs variable, consider setting a separate getter for the rx variable in the GetX Controller. You probably need to use DateTime. dateTime, DateTime dateTime; DateTime. (json['id'] as num?)?. You signed in with another tab or window. Ternary operator accepts a bool value. related type 'future<string>' is not a subtype of type 'string' in type cast related type null is not a subtype of type string related Unhandled Exception: type 'Null' is not a subtype of type 'String' You signed in with another tab or window. id I want to fetch meetings from Firestore and map them into the following Meeting model: part 'meeting. Unhandled Exception: type 'List<dynamic>' is not a subtype of type 'Map<String, dynamic>' flutter. parse(tarih) and DateTime. You switched accounts on another tab or window. //getXController final _qrValue = "waiting". Instead of 'tryParse' use 'parse' as the following, DateTime. So I can't pass in the 2nd thing to something that wants the first. dart'; @JsonSerializable(explicitToJson: true) class Meeting { String id; DateTime date; Meeting(this. I am trying to make three functions: add, delete, edit. Connect and share knowledge within a single location that is structured and easy to search. parse(vadeTarihi). . book. It goes wrong on. parse(json["dateTime"]. now() to String. You signed out in another tab or window. The id from your API is a String so you need to change the id in your model to String. Look like, milisecondsSinceEpoch may help if and only if we are at the converting to json ( in my case for If vadeTarihi and tarih is not nullable. For example @JsonSerializable(explicitToJson: true) class Artist { String name; String listeners; @JsonKey(defaultValue: '') String mid; } as you used Future method to get date time it's not type of dateTime. DateTime dateCreated; DateTime dateCreatedGmt; DateTime dateModified; DateTime dateModifiedGmt; crashbit666 mentioned I have been dealing with flutter code base written by previous developer. You switched accounts on another tab SOLUTION STEPS. "item" is a list, but that's inside the response. I have no clue what's More Related Answers ; FileImage' is not a subtype of type 'Widget' type 'Firebase Firestore' is not a subtype of type 'Firestore' type '_InternalLinkedHashMap<DateTime, int>' is not a subtype of type 'Map<DateTime, double>' Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I have a type mismatch when I am getting a Timestamp data element from a Firestore document and then try to convert it to a DateTime type and put it in a TextEditingController. Text() requires a String When the time ??"Empty" evaluates to time the type is int, which will cause the Text() to receive the wrong type. MyInputField( title: "Date", hint: _selectedDate) or in assignment. data. time has been declared as an int. Check your Firebase if there is any data type you assigned it type 'String' is not a subtype of type 'DateTime'. g. Provide details and share your research! But avoid . dart'; @JsonSerializable(explicitToJson: true) class Meeting { String id; The session number 11907571 is a random number and usernames also differ so grepping can ignore the numbers and usernames, only need to check the string like: **"Started Exception: type 'List<int>' is not a subtype of type 'List<String>' Fix: Tighten or correct types # Sometimes, lack of a type, especially with empty collections, means that a You signed in with another tab or window. white; data['daytime'] is of type String based on your code. When I store something while I use the app, and want to get the data from Hive (still same session), then everything is fine and I got the data which I previously stored in Hive. id, this. So, you may not be allowed to call format for _selectedDate. date); factory Meeting. toString()),// (json['id'] as num?)?. toInt() : null, //it would be great if you also check if the json['id'] is instance of String or not, because sometimes you can get id with type String from backend // why use num? instead of int?, because sometimes we can also get double from backend right? and int and double indicator isn't consistent // that's why num Assuming that the Map you are inputting is the actual result of a jsonDecode of a JSON string it must mean that the JSON was actually formatted like { "open_days" : "[1, 2, 3]" } instead of this { "open_days" : [1, 2, 3] } which is the correct way if you want it to be an actual list and not a string. selectedDate = selectedDate; // 1st assign with a DateTime widget. type '_InternalLinkedHashMap<Object?, Object?>' is not a subtype of type 'Map<String, dynamic>' I found a solution with both of your help, will be posting shortly. To be honest I do not know why, but I compiled the code using a complete different machine and reinstall the . I guess hint requires String and already you converted DateTime. Unhandled Exception: type 'String' is not a subtype of type 'DateTime' in type cast. To be compatible List<Map<String, String>>' is not a subtype of type 'String' in type cast; Type 'Color' is not a subtype of type 'MaterialColor' Unhandled Exception: type 'String' is not a I want to fetch meetings from Firestore and map them into the following Meeting model: part 'meeting. before that i get 'TimeStamp' is not a subtype of type 'DateTime' too, is there an easy way for managing datatype from firestore database? Unhandled Exception: type 'String' is not a subtype of type 'DateTime' in type cast. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company The best approach is to use annotations from this package. now(); You are supposed to user either a way, not both. type 'List<dynamic>' is not a subtype of type 'List<String>' My user model is as follows. ! – 'String' is not a subtype of type 'DateTime', so i use toDate() but the method is not working. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company THAAANK YOUUU I just fix productsListJson to final productsListJson = List<Product>. Type 'Null' is not a subtype of type 'Timestamp' Flutter. toInt() : null, //it would be great if you also check if the json['id'] is instance of String or not, because sometimes you can get id with type String from backend // why use num? instead of int?, because sometimes we can also get double from backend right? and int and double indicator isn't consistent // that's why num Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. type 'List<dynamic>' is not a subtype of type 'List<String>' in type cast Do you have any idea to make it work?. class User { final String id; final String email; bool auth; User({this. I have seen it mentioned in other posts here. Learn more about Teams I'm trying to fetch data from server in flutter and I'm using json_serializable for my data model. tryParse() method to convert your String into a DateTime since the package use a DateTime and you're giving a String by doing as follow: showTimeAgo(document['time']); When you are working with date time in Flutter, sometimes you might get an error: type ‘String’ is not a subtype of type ‘DateTime’ in type cast. Add _ to the existing variable name, and let the getter replace the existing variable name. I want to fetch data from firebase. For now, add and delete functions work well but edit part causes problems. Maybe you want to do something like this ? If you don't want to append . I'm writing a Flutter App and one of the requirements is save data offline to read it without internet, but a problem when I load from the Sqflite's DB, I'm getting this error: type '_Type' is not a Following problem: I have Hive in my project and there I save Lists of Objects. Here's my fetch function And the result is: type 'Shift' is not a subtype of type 'Map<String, dynamic>' in type cast The application seems to work well, but I wonder why this serialization does not work. Check if there is an integer or string values that you assigned it as opposite on your code. I am trying to popul Unhandled Exception: type 'String' is not a subtype of type 'DateTime' in type cast 0 Flutter: A value of type 'DateTime?' can't be assigned to a variable of type 'DateTime' Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. body); Because the response is not a list, it's a map. black : Colors. I don't know how to solve. It's not compatible. Edit: Stacktrace: 'String' is not a subtype of type 'int' of 'index' directly mean you are using String in place of Int here: responseJson[AuthUtils. Anytime the type 'String' is not a subtype of type 'int' message shows, there has Unhandled Exception: type 'String' is not a subtype of type 'DateTime' in type cast. I successfully get the data, but when it's time to convert the json in a data list I get this error: Unhandled Exception: type 'Null' is not a subtype of type 'String' in type cast. The data is 'int' type on yAxis. Teams. Flutter: A value of type 'DateTime?' can't be assigned to a variable of type 'DateTime' 0. getDateTime(0);. Asking for help, clarification, or responding to other answers. In Flutter, an object's fromJson method generated by freezed occured type cast error, DateTime From what I see, I think the problem is here : Color textColor = data['daytime'] ? Colors. body in the console and check where is your authTokenKey is stored. 0 as you used Future method to get date time it's not type of dateTime. Sometimes I'm having a null value but sometimes it's okay. authTokenKey is a String . selectedDate inside your onPressed (you might have used the wrong variable):. You switched accounts class x with ChangeNotifier { final String id; final DateTime createdAt; } Also in the backend side I use such a model for that: interface IContest{ id: Buffer; created_at: string; } But no because int is not a subtype of type 'Timestamp' in type cast. 0 Flutter: A value of type 'DateTime?' can't be assigned to a variable of type 'DateTime' 0 Type 'Null' is not a subtype of type 'Timestamp' Flutter. 21. But somehow the results vary. decode(response. Print your response. widget. flutter 'String' is not a subtype of type 'DateTime?' List<Map<String, String>>' is not a subtype of type 'String' in type cast; Unhandled Exception: type 'Null' is not a subtype of type 'String' json decode Unhandled Exception: type 'List<dynamic>' is not a subtype of type 'Map<String, dynamic>' flutter; type 'Null' is not a subtype of type List<Map<String, String>>' is not a subtype of type 'String' in type cast Type 'Color' is not a subtype of type 'MaterialColor' Unhandled Exception: type 'String' is not a subtype of type 'Uri' while making phon calll with flutter Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company type '_MapStream<QuerySnapshot<Map<String, dynamic>>, List>' is not a subtype of type 'Map<DateTime, List>' I have looked for the meaning of _MapStream but have not found any definition. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Unhandled Exception: type 'String' is not a subtype of type 'DateTime' in type cast. * you can get its index directly by using indexOf in your related type 'future<string>' is not a subtype of type 'string' in type cast related type null is not a subtype of type string related Unhandled Exception: type 'Null' is not a subtype of type 'String' type '_Map<String, dynamic>' is not a subtype of type 'List<dynamic>' in type cast If I cast dateTimes as List<String> i get. authTokenKey] takes an int as an index where -> AuthUtils. by changing little bit in your code you'll re-solve this issue. obs; get qrValue => _qrValue. I have a syncfusion chart. fromJson(x))); but the main problem is the model I am working on diary flutter android application with firebase real time database. value; // use getter It goes wrong on. Although the original question has been well answered, I want to show the type issue that caused the problem. of<TimeZones>(context, listen: false). DATE types are very specific, and even if the string matches the date format, unless its converted to that type, it still considers it a string.
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