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Mastering Development

Node, Express API App on Azure giving Container Start Failure error

I have an existing Node and Express API application which I am trying to deploy to Azure WebApps. Deployment goes fine. But when I try to access the APIs, nothing happens. When I check log, I see following: "Container chdemoapi_0_f2df43ac didn’t respond to HTTP pings on port: 8080, failing site start""Container chdemoapi_0_4e583132 didn’t respond to HTTP […]

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Mastering Development

reactjs application – can’t get my hello world to show up

Background / Problem I’m trying to build understand my first react/webpack/nodejs app. I am able to build / launch it by opening a browser and navigating to http://localhost:3333/ , but the hello world message I’m expecting is not showing. Instead I think it’s trying to give me a directory listing of a folder…? Not too […]

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Mastering Development

Navigation does not open in Cordova Angular App after using Hardware Back Button

We have a Webhosted Angular App that we load in a Cordova App and encounter a problem with navigation (nav-Element with *ngIf) after using the Android Back Button. For example: Case 1: Use buttons and links for navigation in app Use a back link within the Angular application to go back to the Home Screen […]

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Mastering Development

Using Node.js to generate dynamic word document using Database value

I am trying to dynamically populate the WORD Document using npm docx. I am trying to read the data from the SQLite database but due to async node js property the values are not getting into the variable and it shows undefined. If I make the function synchronous the npm docx throws error and doesn’t […]

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Mastering Development

Error: The specified module could not be found. \\?\C:\Program Files\nodejs\tf\node_modules\@tensorflow\tfjs-node\lib\napi-v5\tf js_binding.node

I am getting an error when importing ‘@tensorflow/tfjs-node’ module. My problem is similar to that mentioned in Cannot import @tensorflow/tfjs-node in nodejs TensorFlow.js version- 1.7.3 Platform informations: Windows 8.1 Python 2.7.12 npm 6.14.4 node 10.20.1 Package.json is as follows: { “name”: “tf”, “version”: “1.0.0”, “description”: “”, “main”: “index.js”, “scripts”: { “test”: “echo \”Error: no test […]

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Cryptocurrency Ethereum Mastering Development

.json files for contracts are not created

I am really new in ethereum and solidity and I am having hard time to figure out how to get the .json equivalent for contracts. I have the Campaign.sol inside the contractsFolder. The Campaign.sol file has 2 contracts named CampaignMgr and CampaignFactory. My package.json file looks like this: { “name”: “kickstarter”, “version”: “1.0.0”, “description”: “”, […]

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Mastering Development

How to publish my npm package in GitLab NPM Registry?

I hooked up a trial gold plan to test GitLab NPM Registry functionality. Created a gitlab prohect with the name “bar”. Created a file to generate a token: in the file with the name auth.txt I wrote the line: grant_type=password&username=my-gitlab-username& password=my-gitlab-password Generated a token using the command: curl -d “@ auth.txt” -X POST http:/gitlab.com/oauth/token In […]

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Mastering Development

React Native – Get an error when using a custom component that I made (Error: undefined Unable to resolve module

I made a custom component called “react-native-weekly-calendar”, and I’m trying to publish it to open source community, but I want to test it first. When I try to test it by npm install –save ../<component_name>, it throws an error. My directory structure: – react-native-weekly-calendar (folder) – index.js – package.json – src (folder) – Locale.js – […]

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Development

Why is the calculation result different between sassmeister and local environment?

I do complicated calculations. For example, the following mixin returns 0.00000096 for SassMeister (used in compiler dart-sass v1.18.0). But with gulp-dart-sass this gives different results (9.6000002259). Why is this? I want it to work like SassMeister. Sass file $x: 0.98; $a: 300; @function f($x){ $x: 1 – $x; @return 1 – $x * $x * […]

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Development

“Module not found: Error: Can’t resolve ‘electron-is-dev'” in electron & typescript & webpack project

I’m using Electron and Typescript with webpack. And I’m gonna add react.js. But I typed “npx webpack”, I got an error. It says “electron-is-dev module is not found”, but I already installed it. ERROR in ./src/main/window.ts Module not found: Error: Can’t resolve ‘electron-is-dev’ in ‘project-path/src/main’ @ ./src/main/window.ts 2:0-36 12:35-40 @ ./src/main/app.ts I can’t find how […]