安装运行Browsershot时触发SyntaxError语法错误求助

What's Causing the Issue? #

The error you're seeing:

SyntaxError: Unexpected token (

is directly related to your Node.js version being too old. Browsershot's browser.js uses async/await syntax, which is only supported in Node.js 7.6 and above. When you install Node.js via yum on most RHEL/CentOS systems, you get an outdated version (usually Node.js 6.x or lower) that doesn't support this modern JavaScript feature.

Also, I noticed a small typo in your Composer command: you used satie/browsershot instead of the correct package name spatie/browsershot—we'll fix that too.

Step-by-Step Fix #

1. Uninstall the old Node.js and npm
   First, remove the outdated versions installed via yum:

   yum remove nodejs npm -y
   

2. Install NVM (Node Version Manager)
   NVM lets you easily install and switch between different Node.js versions. Run this command to install it:

   curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash
   

   Then load NVM into your current shell session:

   source ~/.bashrc
   

3. Install a supported Node.js version
   Install an LTS (Long-Term Support) version of Node.js that supports async/await (we'll use Node.js 18, which is stable and widely supported):

   nvm install 18
   nvm alias default 18
   

4. Verify your Node.js and npm versions
   Confirm you're running the correct version:

   node -v # Should output something like v18.17.1
   npm -v # Should output a version compatible with Node 18, e.g., 9.6.7
   

5. Fix the Composer package typo (if needed)
   If you installed the wrong package earlier, correct it:

   composer remove satie/browsershot
   composer require spatie/browsershot
   

6. Reinstall Puppeteer (Browsershot's core dependency)
   Browsershot requires Puppeteer to handle browser automation. Install it globally:

   npm install puppeteer --global
   

7. Test your Browsershot script again
   Run your browsershots.php script once more. The syntax error should be resolved, and your screenshot should save to the specified img/testasdf.png path.

内容的提问来源于stack exchange，提问作者Gregor Meier