11ty addTemplate

If you want to use virtual templates in an eleventy project, you have to use eleventy 3 or greater. But note that the feature landed – officially, at any rate – in 3.0 beta. In other words, 3.0 alpha is not necessarily good enough, as I learned today.^[✲]

I was running 11ty version 3.0.0-alpha.5, as specified in my project’s package.json:

{
  "main": "eleventy.config.js",
  "dependencies": {
    "@11ty/eleventy": "3.0.0-alpha.5"
  }
}

If memory serves, that’s because when I first upgraded to 3.x, only an alpha version was available. Whatever the reason, when I tried addTemplate, 11ty threw an error: eleventyConfig.addTemplate is not a function.

After upgrading @11ty/eleventy – by entering npm install @11ty/eleventy at a terminal prompt – my package.json file was changed:

{
  "main": "eleventy.config.js",
  "dependencies": {
    "@11ty/eleventy": "^3.0.0"
  }
}

And the error disappeared.