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The original FTB Ultimate for MC 1.4.7 crashes during startup with new versions of Java. This applies to any 1.4.7 modpack including Forestry or Railcraft. A crash might look like the following:

[SEVERE] [Railcraft] The mod Railcraft is expecting signature a0c255ac501b2749537d5824bb0f0588bf0320fa for source railcraft.jar, however there is no signature matching that description
[SEVERE] [Railcraft] Tampering Detected. Please re-download Railcraft.

Solution:

Download this file, name it java.security and save it in the instances base folder (the .minecraft folder)
Add the following Java argument to your game: -Djava.security.properties=java.security

How to fix Failed to register URL "X" for site "X" application "/" in Visual Studio

Context

In Visual Studio, upon starting a web application with/without debugging sometimes you get the following error message in the output window

Failed to register URL "X" for site "X" application "/". Error description: The process cannot access the file because it is being used by another process. (0x80070020).

How to fix

Terminal Colors

There exists common confusion about terminal colors. This is what we have right now:

Plain ASCII
ANSI escape codes: 16 color codes with bold/italic and background
256 color palette: 216 colors + 16 ANSI + 24 gray (colors are 24-bit)
24-bit true color: "888" colors (aka 16 million)

Espresso vs. Appium Comparison

Espresso and Appium are both automated UI testing frameworks but they work in different ways. There are use-cases where Espresso is the more suitable choice and there are use-cases where Appium is the more suitable choice.

The primary difference between the two is that Appium is a purely black box testing framework and Espresso is not black-box or white-box, but what they call a "grey box" testing framework (this will be explained further).

Appium tests the actual Android application. It takes the application apk and runs UI tests on them without access to any of the internals of the application. An Appium test knows nothing about "Activities", "Broadcast Services", "Intents", etc... The tests have the same access privileges to an application that a user has and thus the tests simulate the usage of an app the way that a user would actually use the app.

Espresso, on the other hand, is a Java framework that is installed with

	#!/usr/bin/env bash

	zones=(a b c)

	cluster_cidr() {
	echo "apiVersion: networking.k8s.io/v1alpha1
	kind: ClusterCIDR
	metadata:
	name: new-cidr
	spec:

	root = true

	# C# files
	[*.cs]

	#### Core EditorConfig Options ####

	# Indentation and spacing
	indent_size = 4
	indent_style = space

	/*
	* progressCircle(on: Stack or Widget, value: number, colour: string, background: string, size: number, barWidth: number) : Promise<Stack>
	*
	* PARAMS
	* on - the stack or widget to add the progress circle to
	* value - a number between 1 and 100 to be the circle percentage or a number between 0 and 1 to be the circle percentage
	* colour - a HTML supported (hex, rgb, hsl) colour for the progress of the circle. Alternitively, it can be two HTML supported colours seperated by a hyphen (white-black) for the first colour to be active on light mode and second on dark mode
	* background - a HTML supported (hex, rgb, hsl) colour for the unfilled progress of the circle. Alternitively, it can be two HTML supported colours seperated by a hyphen (white-black) for the first colour to be active on light mode and second on dark mode
	* size - the size of the progress circle
	* barWidth - the width of the circular progress bar

	from shapely.geometry import LineString, MultiLineString, Point
	from collections import deque


	def split_line_string(line_string):
	"""Break a LineString"""
	for start, end in zip(line_string.coords[:-1], line_string.coords[1:]):
	yield LineString((start, end))

	var mediaJSON = { "categories" : [ { "name" : "Movies",
	"videos" : [
	{ "description" : "Big Buck Bunny tells the story of a giant rabbit with a heart bigger than himself. When one sunny day three rodents rudely harass him, something snaps... and the rabbit ain't no bunny anymore! In the typical cartoon tradition he prepares the nasty rodents a comical revenge.\n\nLicensed under the Creative Commons Attribution license\nhttp://www.bigbuckbunny.org",
	"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" ],
	"subtitle" : "By Blender Foundation",
	"thumb" : "images/BigBuckBunny.jpg",
	"title" : "Big Buck Bunny"
	},
	{ "description" : "The first Blender Open Movie from 2006",
	"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" ],