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flutter - Failed assertion: line 201 pos 16: 'create != null': is not true related to Authentication Provider

I'm getting the above error whenever my app first loads. It doesn't stop it from loading but I'd like to know ... assertion-line-201-pos-16-create-null-is-not-true-related-to-auth...

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html - make bootstrap columns overlap each other

I am trying to make 1 bootstrap column overlap the other, where one column is shorter than the ... stackoverflow.com/questions/65865036/make-bootstrap-columns-overlap-each-other...

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In my main menu and I want between the character and the black image with the text to display images from my hard disk ... /how-can-i-display-images-from-hard-disk-in-my-main-menu...

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I have an Angular 10 project that is using an open source Angular component that was installed using the normal " ... -cloned-version-of-open-source-angular-component-into-an-a...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Hangman Project Issue

So I am currently doing a project where I am creating a hangman game. Here is the javascript code for ... from:https://stackoverflow.com/questions/65864626/hangman-project-issue...

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Is there a way to attach gesture events to a div element (or other Html elements) in a Blazor mobile bindings ... /65865231/gestures-in-blazor-mobile-bindings-hybrid-app-on-a-div...

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I'm playing around with Assembly and I'm trying to print dst and src define like this: .section __DATA,__data ... /65865221/how-to-print-on-lldb-an-assembly-global-string-variable...

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ios - How to separate Views into smaller ones in programmatic UIKit?

I'm. trying to make my code cleaner by separating my code into smaller files. When I have a single ... 65865013/how-to-separate-views-into-smaller-ones-in-programmatic-uikit...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - Why is my SKAudioNode giving me an error?

I'm getting the following error when playing a sound using SKAudioNode and SKAction.play(): 2021-01-23 13:58:10 ... .com/questions/65864959/why-is-my-skaudionode-giving-me-an-error...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Python giving me an error for trying to mod two variables

I am trying to get the lowest number that is divisible by all the numbers from 1 to 20. The problem is in ... /65864805/python-giving-me-an-error-for-trying-to-mod-two-variables...

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openvpn - Web Request to remote server thorough a vpn

I've built a .net core web API and it works properly on my localhost. On the other hand, I connect ... .com/questions/65865178/web-request-to-remote-server-thorough-a-vpn...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Automatically function for a form on webpage without click on button

Here is my code for going to the Paypal payment gateway for the item after a click on the "Buy Now" Button ... /automatically-function-for-a-form-on-webpage-without-click-on-button...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Hello I'm going to explain my problem really quickly. First I'm using Pybluez library on my Raspberry Pi 3. I ... /65864382/trying-to-pair-my-raspberry-to-my-phone-via-pybluez...

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javascript - I try to parse my data with props between react components but I get undefined values

I am new to react so any help I get I am grateful for it. I want to pass data from my RobotForm component ... -my-data-with-props-between-react-components-but-i-get-undefined-v...

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php - ManyToMany My form update the current record instead of adding a new one

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asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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css - Drop down menu is not opening while mouse over

i am just a beginning in HTML5 and CSS. Im trying to make a dropdown menu but something is going wrong. ... /questions/65864847/drop-down-menu-is-not-opening-while-mouse-over...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Conditionally aggregate grouped data frame with different functions depending on values in a column

Consider the following Pandas data frame. import pandas as pd df = pd.DataFrame({"val":[1, 2, ... /conditionally-aggregate-grouped-data-frame-with-different-functions-depending-on...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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R - subset - exclude rows based on grepl selection of column value

This question already has answers here: question from:https://stackoverflow.com/questions/65865232/r-subset-exclude-rows-based-on-grepl-selection-of-column-value...

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database - EXPLAIN ANALYZE and other insertion related stats for INSERT command in MYSQL (8.0.20)

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node.js - npm start hangs, does not sync changes (create-react-app on WSL)

I am new to web dev and am trying to follow the React tutorial. I have followed it successfully in the past on my ... /npm-start-hangs-does-not-sync-changes-create-react-app-on-wsl...

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postgresql - Creatings tabs programatically by calling the info from database. How to avoid recurrence problem? Python - Kivy

In my code down below. When I click the second tab the code checks the database, if the database has tables, ... -programatically-by-calling-the-info-from-database-how-to-avoid-r...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Tradeoffs for Saving dataUrl Images into SQL Server database

I have very small images that come from the frontend in the form of dataUrls (e.g. data:image/jpeg ... /65864548/tradeoffs-for-saving-dataurl-images-into-sql-server-database...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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google cloud platform - Cannot find module '/workspace/use' on Cloudbuild

I am attempting to make a deployment to firebase using cloud build triggers, everything seems to work fine ... /questions/65864880/cannot-find-module-workspace-use-on-cloudbuild...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How can I access id and name? (Typescript type)

type ClientData = { id: number, name: string } And if you know the answer, can you please also tell me what ... .com/questions/65864833/how-can-i-access-id-and-name-typescript-type...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Ursina doesn't work on linux but it does on windows?

I have a python program that is running on ursina. When I run it on Windows, I get no errors at all, but ... /questions/65864791/ursina-doesnt-work-on-linux-but-it-does-on-windows...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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