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Error 2502 and 2503 Fix

Fix Error 2502 and 2503 while installing or uninstalling: Well, if you are getting error 2502/2503 internal error when trying to install a new program or uninstalling an existing program then you are at the right place as today we are going to discuss how to resolve this error. The error 2502 and 2503 while installing or uninstalling a program seems to be caused because of permissions issue with the Temp folder of Windows which can be usually found in C:\Windows\Temp. These are the error you may encounter while installing or uninstalling a program: The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2503. The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2502. Called RunScript when not marked in progress Called InstallFinalize when no install in progress. While the issue is not limited to this cause as sometimes virus or malware, incorrect registry, corrupt Windows Installer, incompatible 3rd party

Learn to code (or do anything): top down, bottom up and other approaches

Learning to code is hard. Software engineering, the field we most commonly refer to when talking about ‘learning to code’, is based upon a foundation of computer science and applied mathematics. And while it is true that you don’t need to be a mathematician or a computer scientist in order to be a software engineer, the another truth is that learning even basic programming concepts is hard for most people. In this article we will explore a little bit of learning theory, and how we can apply it to those just getting started with learning how to code. I’ll lay out some of the advantages and disadvantages of concepts like the bottom up versus top down approaches to learning, as well as some alternatives that are worth considering. This content is aimed at newer programmers, but these concepts are applicable to anyone who is interested in learning more effectively, even if the topic isn’t programming. I’ve been a professional programmer for over 7 years, and I started messing around with code way earlier. If there’s

Build a simple chat app with node.js and socket.io

To develop a real chat application, we have to put in place a real-time system of sending/receiving data. It will be impossible to do it with a relational database and Ajax calls. Thank’s to WebSocket and the library socket.io, it becomes easy. You can follow this tutorial with my repo Github: https://github.com/ngrt/simpleChatApp Technical stack Here is the technical stack that you are using for this app : WebSockets and socket.io WebSockets is a protocol that allows a bilateral synchronous exchange between a client and a server. In the classic web, a client requests to a server and a server responds sending it back the data. This system is impossible for a chat app. In WebSockets, the server can send data to the client, but the client can too ! A WebSocket is a kind of communication pipe opened in two directions. Socket.io is a library based on this protocol to make the use of WebSockets easier. The Javascript mafia Node.js is a Javascript back-end technology executed by the server as PHP, Ruby or Python. JavaScript uses events. Node.js

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