Tutorial: Homebrew install specific version of formula? How do I install a specific version of the formula in homebrew? For example, PostgreSQL-8.4.4 instead of the latest 9.0. Solutions Homebrew install specific version of formula? Solution 1: Homebrew install specific version…
Tutorial: Uninstall/remove a Homebrew package including all its dependencies I have a Homebrew formula that I wish to uninstall/remove along with all its dependencies, skipping packages whom other packages depend upon (a.k.a. Cascading package removal in Package manager parlance). e.g. Uninstall package a which depends on packages b & c,…
Problem: mysql_fetch_array() expects parameter 1 to be resource boolean given I am trying to select data from a MySQL table, but I get one of the following error messages: mysql_fetch_array() expects parameter 1 to be resource, boolean given This is…
Problem: What does a Cannot find symbol or Cannot resolve symbol error mean? Please explain the following about “Cannot find symbol”, “Cannot resolve symbol” or “Symbol not found” errors (in Java): What do they mean? What things can cause them?…
Tutorial: Draw E-R diagram for Hospital Management System Hospitals are a very integral part of the infrastructure of society. So, they need to have good management and management systems. To ensure the establishment of a good system, you must plan…
Tutorial: Vue 3 + Pinia – Redirect to Previous URL After Login In this post, we’ll cover how to redirect a user back to their originally requested URL / route after logging into a Vue 3 + Pinia application. This…
Tutorial: Android 8: Cleartext HTTP traffic not permitted I had reports from users with Android 8 that my app (that uses back-end feed) does not show content. After investigation I found following Exception happening on Android 8: (I’ve removed package…
Tutorial: What does body-parser do with express? I don’t understand why we need body-parser in an Express application, as we can get data without using body-parser. And what does it do actually and how? Solutions of What does body-parser do with express? Solution…
Tutorial: How to set focus on an input field after rendering? What’s the react way of setting focus on a particular text field after the component is rendered? Documentation seems to suggest using refs, e.g: Set ref=”nameInput” on my input field in…
Tutorial: How to install Java 8 on Mac I want to do some programming with the latest JavaFX, which requires Java 8. I’m using IntelliJ 13 CE and Mac OS X 9 Mavericks. I ran Oracle’s Java 8 installer, and…
