What are some resources for getting started in operating system development?

One thing I've always wanted to do is develop my very own operating system (not necessarily fancy like Linux or Windows, but better than a simple boot loader which I've already done). I'm having a...

VGA programming without using interrupt (only registers)

I want to develop a VGA graphics driver (for Linux(Ubuntu)) with support for the basic primitives such as putpixel, drawline, fillrect and bitblt. I want to do it in protected mode. I´ve been...

PHP MYSQL allowing a user to submit a link from a textarea

I am trying to work on a fansite for a game, and i've ran into an issue. I have an html textarea, that a user can put in a bio of themselves, or an about me in other terms. I am wondering how if a...

Nofollow link for plugin links

In http://www.onlineincomestartup.com/drive-traffic-to-your-website/ , In the author bio that shows up inside each posts, I need to make all the links except Google plus, a no follow for SEO...

How do I get rid of the margin on the bottom of my jumbotron in bootstrap?

I am making a site for my high school robotics team and I am new to HTML and CSS (bootstrap). I do not want the space between my banner and my navbar in my site. How do I eliminate that...

How to make `objcopy` support efi-app target?

The following makefile snippet seems to objcopy command line options to convert a .so file into a .efi file. OBJCOPYFLAGS = \ -j .text\ -j .sdata\ -j .data\ -j .dynamic\ -j .dynsym\ -j...

How to consume list of entities response from spring-data-rest

I am using spring-data-rest to expose REST API. One of my search method returns list of entities. The repository and rest response as follows List<Order> findByKeywordContaining(String...

MariaDB over SSL not working, "certificate verify failed"

Using this guide I'm attempting to set up MariaDB (mysql) for using SSL between dbserver and appclient. I created the server and client certificates on the server, per the guide. I then copied...

Gatsby static / dynamic hybrid component

I have a problem with inconsistent behavior between the site generated by gatsby develop and gatsby build. The result is a site that works in development but not production. A summary of my...

Android Studio SDK is missing

I had a USB connection problem when I debug and updated BIOS then, the laptop had problem with drive so, I needed to recover it. So, I recovered it with removing all the applications and just kept...

Using python to collect user information from Instagram

I am currently using python to collect information from users on instagram, using a text file containing the links of the instagram users. While I can collect the # of followers, # following, and...

Error: Could not find or load main class org.h2.tools.RunScript

enter code herei have my webapplication and h2database as a docker containers. I have docker compose yml file all set. Now, i need to initialize this database ( h2database). But i am unable to do...

Can't fit my navbar links inside the navbar

I'm setting up a portfolio page for an assignment. I made some changes to my code, and now my navbar isn't working properly. I can't get my page links to fit in my actual navbar they are sitting...

Android Emulator on AMD/Win 10

I've read ton of links with the procedure to use hardware acceleration for Android emulator on Ryzen processor/Win 10. I've enabled Windows Hypervisor Platform and SVM on Bios (I'm on Ryzen 7...

Splitting list of nested json to multiple columns

This is sort of an extension on a previous question I asked, but different scope and approach. I have a dataframe with a column populated by lists of dictionaries in each row 0 [{"date":"0 1 0"...

How to force page refresh for Instagram in-app web browser?

I have a link in my Instagram bio to a page on my website. I update that page frequently (every few days). However, no matter how hard I try I can NOT get the page to update when being viewed...

ACF Custom user field in search query

I have created some field in user section, Now i want to search user by custom field. Like Phone of City Name. While search by first name and last name is working fine by could not get user by...

ssl_accept() returns SSL_ERROR_SYSCALL in c

I wrote a C program that secures http traffic using openssl library : #include <openssl/ssl.h> #include <openssl/bio.h> #include <openssl/err.h> #include <openssl/crypto.h> #include...

ReactJS - TypeError: Cannot read property 'raw' of undefined

I am trying to get data from part of an api which is like this and actually i can see the all data in the console. { "id":"DszAeHV8zfQ", "created_at":"2020-01-28T19:41:06-05:00", ...

d3-sankey links not updating on drag event

Issue-1 : I am unable to update d3-sankey links on drag events. I am trying to replicate d3 vertical and horizontal drag events similar to this : https://bl.ocks.org/d3noob/5028304 When drag event...

How to create multiple mapping between yaml and markdown in gatsby

it's been half month since i learn gatsby, unfortunately i have trouble to understand how content relation and the structure. I try to create mapping between the markdown frontmatter and yaml, in...

API works in postman but not in react front end

I am trying to make an app with the MERN Stack and have run into an issue. My app allows a "create profile" and "edit profile" component that uses the same API route since its a post request that...

Rails, Active Record, Devise and cloudinary, simple form, heroku... photo does not upload to my cloudinary

Ok so, you get a gist of my problem in the title. I created an app in rails which requires users to create a profile and upload a picture in order to access some features. Anyway, everything works...

Virtualization in AMD Processors

greets. After getting a decent computer to start coding I realized that AMD processors can't run HAXM... and that is pretty much it, please help: I already got in the BIOS and activated the SVM...

Biopython is successfully installed in anaconda 3 but the module fails to be imported

A variation of this problem was asked before but I'm forced to ask because the solutions given there didn't work for me. I'm using Jupyter in anaconda 3. First I installed biopython using !pip...

How to map multiple yaml files to frontmatter in Gatsby

The problem: I am having trouble mapping a second .yaml file to a second markdown frontmatter field in Gatsby. The project is for a magazine, with the first yaml file storing details about each...

Android Studio with Flutter doesn't see emulator

When I run Android Studio emulator through "Tools > AVD Manager > Click on run button next to device" and wait until it boots Android Studio still says no device connected. Also when I click on...

jekyll blog new line (minimal-mistake)

jekyll blog(minimal-mistakes thema) has a space to introduce myself. I want to write on two lines in this space. For example hello world I know that to edit this page, i need to touch the...

"Publishing changes from background threads is not allowed" while fetching data using URLSession

I am trying to fetch data from the Unsplash API however I am getting the following error: "Publishing changes from background threads is not allowed; make sure to publish values from the main...

Perl Error - Global symbol requires explicit package name

I am getting some errors while trying to run a Perl file which is I need to run. (I usually use Python but I do not know any other programming languages including Perl.) I will show errors...