When running the Next.js npm run dev command, you might encounter this frustrating error:

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Failed to load SWC binary for win32/64 (Next.js)
next-swc.win32-x64-msvc.node is not a valid Win32 application.

Don’t worry, it’s not the end of the world! The official documentation has provided a detailed solution. Today, I’ll walk you through how to resolve this tricky issue.

First, Identify the Root Cause

This error is mainly due to the missing Microsoft Visual C++ Redistributable components. You can download and install it from the Microsoft website.

Step-by-Step Solution

1. Confirm Your Processor Architecture

In the Windows system, confirming your processor architecture is very simple. Just follow these steps:

• Open the “Settings” app (you can quickly open it by pressing Win + I).
• Go to “System” > “About”.
• In the “Device specifications” section, look for “System type”. You will see a description like “64-bit operating system, x64-based processor” or “64-bit operating system, ARM64-based processor”.

This way, you will know whether your processor is x64 or ARM64.

2. Check Node Process Architecture

Next, make sure that your Node process architecture matches your processor architecture. Open the Command Prompt (cmd) and enter the following command:

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node -p "process.arch"

You will see a result like x64 or arm64.

3. Install the Correct SWC Package

Based on your processor architecture, run the following command to reinstall the appropriate SWC package:

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npm i @next/swc-win32-x64-msvc

All Done

Now, you can run npm run dev again and see if the error is resolved. If everything goes smoothly, your Next.js project should start without any issues!

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