Build fails because of PNPM version 7

Support
1

Netlify site name: https://avi12-website.netlify.app
Ever since PNPM’s requirement with version 7 to support Node 14 or above, my build fails, as Netlify only supports Node 12
I’m wondering whether I should switch to NPM or not in the meantime.

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image1118×513 14.4 KB

2

Hi there, node 14+ is not a problem, you’ll just need to set it explicitly.

From our documentation:

3

Thanks! I successfully set NODE_VERSION=16.15.0
However, now I’m having a different issue:

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image1152×875 34.6 KB

4

Did you try doing what the error suggests? That is, add one of the flags to npm?

You can do it as explained here: Manage build dependencies | Netlify Docs

5

What about the npm ERR! EEXIST: file already exists, mkdir '/dev/null' part?

6

After switching to Node 14, I get a different error:

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image1185×1116 40.8 KB

Basically, despite the onPreBuild script installing PNPM, it fails to run.

module.exports = {
  async onPreBuild({ utils: { build, run, status } }) {
    try {
      if (process.env.CI) {
        await run.command("npx pnpm install -r --shamefully-hoist --store=node_modules/.pnpm-store");
      } else {
        status.show({ summary: "CI is false, skipping pnpm install." });
      }

      status.show({ summary: "Installed pnpm!" });
    } catch (e) {
      build.failBuild(`An error occurred while installing pnpm: ${e.message}`);
    }
  }
};
7

I ended up fixing the issue by:

  1. changing the onPreBuild script to
    module.exports = {
  async onPreBuild({ utils: { build, run, status } }) {
    try {
      if (process.env.CI) {
        await run.command("npx pnpm i --shamefully-hoist");
      } else {
        status.show({ summary: "CI is false, skipping pnpm install." });
      }

      status.show({ summary: "Installed pnpm!" });
    } catch (e) {
      build.failBuild(`An error occurred while installing pnpm: ${e.message}`);
    }
  }
};
  2. setting in the netlify.toml
    [build]
  command = "npx pnpm build"
...
  3. setting an environment variable: NODE_VERSION=14
1 Like