Fix the infamous "Source file requires different compiler version"

• dapp
• solidity
• ethereum

One of the first things you do when starting a new development path is setting up your dev environment. Personally, as a Visual Studio Code believer, I browse the available extensions and install the ones with the most stars ⭐

In my case, I'm starting a new adventure towards the Dapp developer path, so I installed all the solidity/ethereum related extensions I saw. Then, I played around with Cryptozombies and the Truffle tutorial. Both, to my dismay, greeted me with an error when I followed through them in my editor:

Source file requires different compiler version (current compiler is *something*) - note that nightly builds are considered to be strictly less than the released version
❗ avoid using experimental features! avoid specifying version ^

And I haven't written even one line of code of my own!!!

Ok, to the point

What's causing the Source file requires different compiler version error, and how to fix it?

Who:

It's the solidity extension.

Why:

Because it comes bundled with its own solidity compiler (which is the latest), and most of the tutorials around are using an older version of the language.

Fix:

Change the source of the compiler for the extension:

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