Why add an increment/decrement operator when compound assignnments exist? What does "Splitting the throttles" mean? Not the answer you're looking for? Solution 1 : Use not Equal to null Here use userName != null just like below.
I believe the solution is to use a key in the listview builder of widgets within the expansion tile. How much space did the 68000 registers take up? Find centralized, trusted content and collaborate around the technologies you use most. onTap() is the index printed correctly. What is the Modified Apollo option for a potential LEO transport? (Ep. Connect and share knowledge within a single location that is structured and easy to search. How can I remove a mystery pipe in basement wall and floor? If the output is: then you know that you have accidentally uploaded the value in the form of a the String 'true' rather than the bool value true. Try instead of empty string, giving a default asset value e.g, type 'String' is not a subtype of type 'bool' flutter, Why on earth are people paying for digital real estate? thanks but This error has appeared After I followed your instructions "Null check operator used on a null value "what is the problem? Find centralized, trusted content and collaborate around the technologies you use most. Is religious confession legally privileged? I'm trying to display a widget based on the value returned. What would stop a large spaceship from looking like a flying brick? To learn more, see our tips on writing great answers. ? Thanks for contributing an answer to Stack Overflow! By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. type 'String' is not a subtype of type 'bool' flutter Ask Question Asked 1 year, 5 months ago Modified 1 year, 5 months ago Viewed 2k times 0 The following _TypeError was thrown building Home (dirty, dependencies: [_ModalScopeStatus], state: _HomeState#f1f65): type 'String' is not a subtype of type 'bool' this is the error (Ep. Sorted by: 3. Ternary operator accepts a bool value. As reference see https://pub.dev/documentation/shared_preferences/latest/shared_preferences/SharedPreferences/setString.html What you probably wanted to do is use getStringList as so: How can I remove a mystery pipe in basement wall and floor? Were Patton's and/or other generals' vehicles prominently flagged with stars (and if so, why)? Thanks for contributing an answer to Stack Overflow! How much space did the 68000 registers take up? Is religious confession legally privileged? I don't see what I'm doing wrong. Learn more about Teams How can I learn wizard spells as a warlock without multiclassing? Can I still have hopes for an offer as a software developer. How to format a JSON string as a table using jq? and \right. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. Please check Not seeing any issues here. thanks you. Teams. I get this Exception: Unhandled Exception: type 'String' is not a subtype of type 'bool'. Other than Will Riker and Deanna Troi, have we seen on-screen any commanding officers on starships who are married? 587), The Overflow #185: The hardest part of software is requirements, Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Testing native, sponsored banner ads on Stack Overflow (starting July 6), type 'int' is not a subtype of type 'double', Is the type 'int' is not a subtype of type 'double', Flutter : Conditions must have a static type of 'bool', The type 'double' is not a subtype of type 'String', error: Conditions must have a static type of 'bool', type 'String' is not a subtype of type 'bool' flutter. On clicking false you will see the particular inkwell changes to true and vice-versa. Asking for help, clarification, or responding to other answers. Type Null is not a subtype of type int error when tried fetch data from an API, https://dart.dev/null-safety/understanding-null-safety, Why on earth are people paying for digital real estate? Rewrite all your conditions like this (if you're sure that the value won't be null): The argument type 'RxString' can't be assigned to the parameter type 'String', type 'Rx
' is not a subtype of type 'Widget' in type cast<>. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. What is the significance of Headband of Intellect et al setting the stat to 19? isn't a 'bool', as required by the closure's context. Were Patton's and/or other generals' vehicles prominently flagged with stars (and if so, why)? Making statements based on opinion; back them up with references or personal experience. When I add "bool" in front of the offending line, I get an error in logic, because switchVariable has already been declared as a bool at the start. in type cast) Flutter. I try to check if token exists from a response. rev2023.7.7.43526. rev2023.7.7.43526. type 'String' is not a subtype of type 'bool' #369 - GitHub How to passive amplify signal from outside to inside? type 'String' is not a subtype of type 'bool' flutter (Ep. Making statements based on opinion; back them up with references or personal experience. After running it showing the exception as Unhandled Exception: type 'bool' is not a subtype of type 'String' in type cast . But getting the below error. Thanks for contributing an answer to Stack Overflow! can't be assigned to a variable of type 'bool', type 'bool' is not a subtype of type 'List' in type cast - flutter/dart, The return type 'String?' By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I am using a boolean variable isDone to mark a task as complete but when i add a new task, i get the error 'String' is not a subtype of type 'bool'. @Bisclavret If you want it to be accessed in different modules you should define it as "static". How can I remove a mystery pipe in basement wall and floor? Find centralized, trusted content and collaborate around the technologies you use most. You should share your full, Flutter: type 'bool' is not a subtype of type 'RxBool' in type cast, Why on earth are people paying for digital real estate? How to get Romex between two garage doors. How do countries vote when appointing a judge to the European Court of Justice? First, you shouldn't be calling setState when the ListView is building it's items. 1 Declaration: bool switchVariable = true; Code section: SharedPreferences prefs = await SharedPreferences.getInstance (); switchVariable = (prefs.getBool ('switchVariable') ?? Air that escapes from tire smells really bad. Search for "type String" in your logs! Can I contact the editor with relevant personal information in hope to speed-up the review process? How can a web browser simultaneously run more videos than the number of CPU cores? To learn more, see our tips on writing great answers. Shop replaced my chain, bike had less than 400 miles, How to get Romex between two garage doors. My manager warned me about absences on short notice. To learn more, see our tips on writing great answers. But gets this error which says `type 'bool' is not a subtype of type 'RxBool' in type cast'. But avoid . Making statements based on opinion; back them up with references or personal experience. Countering the Forcecage spell with reactions? Is religious confession legally privileged? Edit: Since you seem to be looking for a quick fix, try this instead: At least that's MORE likely to work than that other answer if you REALLY can't tell us what's really inside that favoriteData[key] value of yours! How do I remove this spilled paint from my driveway? i just want to update my favorite status in Firebase when user is click on favorite icon. Making statements based on opinion; back them up with references or personal experience. Python zip magic for classes instead of tuples. (Ep. Please help me out with this problem. Other than Will Riker and Deanna Troi, have we seen on-screen any commanding officers on starships who are married? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, Why on earth are people paying for digital real estate? rev2023.7.7.43526. Would it be possible for a civilization to create machines before wheels? Spying on a smartphone remotely by the authorities: feasibility and operation, what is meaning of thoroughly in "here is the thoroughly revised and updated, and long-anticipated", How to play the "Ped" symbol when there's no corresponding release symbol. A working codesnippet of SharedPreferences: Thanks for contributing an answer to Stack Overflow! Can a user with db_ddladmin elevate their privileges to db_owner, Can I still have hopes for an offer as a software developer. when flutter application starts, type 'String' is not a subtype of type 'bool', A value of type 'bool?' critical chance, does it have any reason to exist? . Is there any potential negative effect of adding something to the PATH variable that is not yet installed on the system? I followed the help here: github.com/flutter/flutter/issues/60676#issuecomment-652359204 and used the same PageStorageKey in the listview.builder that was used in the parent expansiontile - Eradicatore Jan 12, 2021 at 14:31 Add a comment 2 Answers isn't a 'bool', as required by the closure's context, forEach -> return true; // error The return type 'bool' isn't a 'void', as required. Do you need an "Any" type when implementing a statically typed programming language? Not the answer you're looking for? operator, resolve the error. Can the Secret Service arrest someone who uses an illegal drug inside of the White House? (Ep. If magic is programming, then what is mana supposed to be? Not the answer you're looking for? Is a dropper post a good solution for sharing a bike between two riders? To learn more, see our tips on writing great answers. And oh, okay so it could also just be the update Well, I'm not an expert but I hope you can get it solved! Source: Spying on a smartphone remotely by the authorities: feasibility and operation, what is meaning of thoroughly in "here is the thoroughly revised and updated, and long-anticipated". I cannot declare it again like this. Is religious confession legally privileged? Can you share that line of code where it throwing "Null check operator used on a null value"? Using Lin Reg parameters without Original Dataset. 'String' is not a subtype of type 'bool' - Stack Overflow Below is my code which I'm trying to show. How to passive amplify signal from outside to inside? Unhandled Exception: type List<dynamic> is not a subtype of type List<Map<String, dynamic>> Load 7 more related questions Show fewer related questions 0 Map? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Air that escapes from tire smells really bad. and look at this link https://dart.dev/null-safety/understanding-null-safety. Can Visa, Mastercard credit/debit cards be used to receive online payments? Can we use work equation to derive Ohm's law? I'm Using GetX Package for State Management in Flutter. 15amp 120v adaptor plug for old 6-20 250v receptacle? Can I contact the editor with relevant personal information in hope to speed-up the review process? Asking for help, clarification, or responding to other answers. but when i fetch data i got this error: Q&A for work. Find centralized, trusted content and collaborate around the technologies you use most. This is a todo list app which uses a database. Can I still have hopes for an offer as a software developer. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. What is the Modified Apollo option for a potential LEO transport? Can you work in physics research with a data science degree? is nullable and 'bool' isn't, Flutter: type 'Null' is not a subtype of type 'bool', Non-definability of graph 3-colorability in first-order logic. Why add an increment/decrement operator when compound assignnments exist? How does the inclusion of stochastic volatility in option pricing models impact the valuation of exotic options? If I have to write an entire app every time I want to use shared preferences then there is legitimately no reason to ever use shared preferences. Other than Will Riker and Deanna Troi, have we seen on-screen any commanding officers on starships who are married? How does the inclusion of stochastic volatility in option pricing models impact the valuation of exotic options? How to solve the "Type Null is not a subtype of type " error? Asking for help, clarification, or responding to other answers. delimiter is not working. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. To learn more, see our tips on writing great answers. It looks like the _setValue is returning a Future<dynamic> and this together with the && does not evaluate to a bool and is triggering the assertion error, I suspect. can't be assigned to a variable of type 'bool', flutter: error: A value of type 'bool?' Here is Exception stack: Who was the intended audience for Dora and the Lost City of Gold? From what I see, I think the problem is here : data['daytime'] is of type String based on your code. (Ep. '$totalScrore ' : "0.00%"), Or You can Use userScore: new Text ('$ {totalScrore ?? Can the Secret Service arrest someone who uses an illegal drug inside of the White House? 587), The Overflow #185: The hardest part of software is requirements, Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Testing native, sponsored banner ads on Stack Overflow (starting July 6), type 'Future' is not a subtype of type 'String' in type cast in flutter, Flutter : 'Future ' is not a subtype of type bool, The argument type 'Future' can't be assigned to the parameter type 'bool', A value of type 'Future' can't be returned from the method because it has a return type of 'Future, The argument type 'Future' can't be assigned to the parameter type 'Future Function()? For example. I'm getting error type 'bool' is not a subtype of type 'double' while using ListView.builder inside ExpansionTile. Are there ethnically non-Chinese members of the CCP right now? i.e. 1. What is the significance of Headband of Intellect et al setting the stat to 19? Travelling from Frankfurt airport to Mainz with lot of luggage. You got only one printout? How should I select appropriate capacitors to ensure compliance with IEC/EN 61000-4-2:2009 and IEC/EN 61000-4-5:2014 standards for my device? Learn more about Teams To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 587), The Overflow #185: The hardest part of software is requirements, Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned, Testing native, sponsored banner ads on Stack Overflow (starting July 6), Flutter - SQFlite - type 'String' is not a subtype of type 'double', Unhandled Exception: type 'String' is not a subtype of type 'double' SQFlite, SqfliteDatabaseException (DatabaseException(near ")": syntax error, type 'String' is not a subtype of type 'bool', Unhandled Exception: type 'bool' is not a subtype of type 'String' in type cast, type 'String' is not a subtype of type 'bool' flutter, flutter - type 'QueryRow' is not a subtype of type 'String', _TypeError (type 'String' is not a subtype of type 'bool') Document Snapshot Flutter, Flutter: _CastError (type 'Null' is not a subtype of type 'String' in type cast). Why free-market capitalism has became more associated to the right than to the left, to which it originally belonged? thanks first of all 1 - I modified it 2- late using for null safety so I have to give the (isDayTime) initial value (EX: false) or use late .3 when I remove the? Flutter: Unhandled Exception: type 'String' is not a subtype of type 'bool' Can the Secret Service arrest someone who uses an illegal drug inside of the White House? flutter - Map<Object? Object> is not a subtype of type 'Map<String fetchCourses() returns a Future, use FutureBuilder to resolve the Future. If you do, you get an error for that. can't be assigned to a variable of type 'Map' because 'Map?' Can we use work equation to derive Ohm's law? By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. How to play the "Ped" symbol when there's no corresponding release symbol. is nullable and 'bool' isn't, type 'Null' is not a subtype of type 'bool' in type cast, type 'String' is not a subtype of type 'bool' flutter, GETX Error: Conditions must have a static type of 'bool'. type 'Null' is not a subtype of type 'bool' in type cast The argument type 'Future<bool>' can't be assigned to the parameter type 'bool' 3 A value of type 'Future<bool?>' can't be returned from the method because it has a return type of 'Future<bool> Making statements based on opinion; back them up with references or personal experience. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Why add an increment/decrement operator when compound assignnments exist? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The best approach is to use annotations from this package. Asking for help, clarification, or responding to other answers. in type cast, getting an error type int is not a subtype of string, How to fix type 'int' is not a subtype of type 'String', _CastError (type 'String' is not a subtype of type 'int?' What is the number of ways to spell French word chrysanthme ? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Can the Secret Service arrest someone who uses an illegal drug inside of the White House? Thanks for contributing an answer to Stack Overflow! Do United same day changes apply for travel starting on different airlines? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Find centralized, trusted content and collaborate around the technologies you use most. rev2023.7.7.43526. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Error in Flutter code " type 'Null' is not a subtype of type 'bool' "? [Solved]-'String' is not a subtype of type 'bool'-Flutter Not the answer you're looking for? can't be assigned to a variable of type 'bool', Error: A value of type 'bool?' Can I contact the editor with relevant personal information in hope to speed-up the review process? Typo in cover letter of the journal name where my manuscript is currently under review. How much space did the 68000 registers take up? Connect and share knowledge within a single location that is structured and easy to search. The problem seems to be that the favoriteData[key] value that you get back from Firebase is in the form of a String, not a bool as you want it to be. I'm not able to figure out what and where is problem. What would stop a large spaceship from looking like a flying brick? What is the Modified Apollo option for a potential LEO transport? Maybe you want to do something like this ? Countering the Forcecage spell with reactions? With object type, APIs like Object.create can be better represented. Are there ethnically non-Chinese members of the CCP right now? Find centralized, trusted content and collaborate around the technologies you use most. What is the number of ways to spell French word chrysanthme ? Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, Exception: type 'String' is not a subtype of type 'int' in type cast, Why on earth are people paying for digital real estate? i got this : I/flutter (12382): favoriteData[-NA7lSecAKu8vjE9nxYN] is null I/flutter (12382): favoriteData[-NA7lSecAKu8vjE9nxYN] is of type Null. A value of type 'Object?' flutter - _CastError (type 'String' is not a subtype of type 'List Thanks for contributing an answer to Stack Overflow! Were Patton's and/or other generals' vehicles prominently flagged with stars (and if so, why)? type 'List<String>' is not a subtype of type 'String' in type cast when http post the list array 0 flutter http.post Error: Expected a value of type 'bool', but got one of type 'String' Add these lines: Add these lines: Thank you for the input though. So, to fix this either you can check whether your data map have the filed using data.containsKey('isDayTime') or You can use ?? Making statements based on opinion; back them up with references or personal experience. Why free-market capitalism has became more associated to the right than to the left, to which it originally belonged? [Solved]-Unhandled Exception: type 'bool' is not a subtype of type How do countries vote when appointing a judge to the European Court of Justice? rev2023.7.7.43526. Thanks for contributing an answer to Stack Overflow! what is meaning of thoroughly in "here is the thoroughly revised and updated, and long-anticipated". A+B and AB are nilpotent matrices, are A and B nilpotent? Making statements based on opinion; back them up with references or personal experience. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Find centralized, trusted content and collaborate around the technologies you use most. I am creating a multi-paged app on flutter to To determine the time based on the location, but when the code is turned on, there's a problem on this page, I tried to fix the problem, but the error still exists" type 'Null' is not a subtype of type 'bool'" I'll include the other pages in the comments. One simple trick is to put something like this. (null aware operator) to assign a fallback value, so that your ternary operator will always have boolean value. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. Unfortunately, there is no conversion from string to bool in Dart. '', }; This error appear, because in somewhere a String variable, get null value. Languages which give you access to the AST to modify during compilation? You may need to use .toLowerCase() or .toUpperCase() according to your string value before the second line of the code above. Asking for help, clarification, or responding to other answers. Can the Secret Service arrest someone who uses an illegal drug inside of the White House? https://github.com/flutter/flutter/issues/36539#issuecomment-561848176. can't be assigned to a variable of type 'bool', Flutter : Conditions must have a static type of 'bool', Unhandled Exception: type 'bool' is not a subtype of type 'String' in type cast. Hi I have an issue with Flutter. Flutter: type 'bool' is not a subtype of type 'double'
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