Programming
Error: src refspec main does not match any (and master): How to Fix It
Git can't push main or master because that branch doesn't exist locally yet. Make your first commit, match the branch name, and push again.
5 min read
Category
Programming
Beginner-friendly programming guides and fixes for the errors developers actually hit: git push errors, .NET assembly loading, SSH key exchange settings, Java formatting and getting started with Python.
Programming
Fatal: Not a Git Repository: What It Means and How to Fix It
Git says "fatal: not a git repository" when it can't find a .git folder. Here's how to find the right folder, start a repository, and fix GIT_DIR, submodule and ownership problems.
6 min read
Programming
Git Push --force-with-lease: The Safer Way to Force Push
What git push --force-with-lease does, how it differs from --force, when to use it after a rebase or amend, and why --force-if-includes makes it safer.
7 min read
Programming
Git Push Set Upstream: Fix "The Current Branch Has No Upstream Branch"
Fix "fatal: The current branch has no upstream branch" with git push -u, set tracking on an existing branch, and make Git set the upstream for you.
5 min read
Programming
Git Undo Last Commit: Reset, Revert, Amend and How to Get It Back
Undo your last Git commit the right way: keep the changes, throw them away, or reverse a commit you already pushed, plus how to recover from a bad reset.
7 min read
Programming
How to Learn Python for Free: A Step-by-Step Path
A free path from zero to writing real Python: install it, pick one free course, use the official docs and build small projects.
7 min read
Programming
Java printf: Format Specifiers, Width, Precision and Flags
How System.out.printf and String.format work in Java: %d, %s, %f, %n and %x, width and precision, flags, locales and the mistakes that throw exceptions.
7 min read
Programming
11 Python Projects for Beginners (With Starter Code)
Eleven small Python projects that teach real skills, from a number guessing game to a weather app, each with the modules it uses and starter code.
8 min read
Programming
Python Raise Exception: How to Use raise, Custom Exceptions and raise from
How to raise exceptions in Python: built-in errors like ValueError, custom exception classes, raise from, re-raising and when to use assert instead.
7 min read