Silently Fails: Error running mksnapshot

[seanaye]

I am receiving the following output when trying to create snapshot

Creating a linked script..
running in context
Generating startup blob in "/Users/seanaye/dev/coparse/pdf-reader/packages/app/cache"
Loading script for embedding: /Users/seanaye/dev/coparse/pdf-reader/packages/app/cache/snapshot.js
Error running mksnapshot.
Error: Error in mksnapshot
    at main (/Users/seanaye/dev/coparse/pdf-reader/packages/app/scripts/createSnapshot.js:49:11)

script to generate the snapshot

const childProcess = require('child_process');
const vm = require('vm');
const path = require('path');
const fs = require('fs');
const electronLink = require('electron-link');

const excludedModules = {};

async function main() {
  const baseDirPath = path.resolve(__dirname, '..');

  const mainPath = `${baseDirPath}/src/snapshot/imports.js`;

  console.log('Creating a linked script..');
  const result = await electronLink({
    baseDirPath: baseDirPath,
    mainPath,
    cachePath: `${baseDirPath}/cache`,
    shouldExcludeModule: (modulePath) =>
      excludedModules.hasOwnProperty(modulePath),
  });

  const snapshotScriptPath = `${baseDirPath}/cache/snapshot.js`;
  fs.writeFileSync(snapshotScriptPath, result.snapshotScript);

  // Verify if we will be able to use this in `mksnapshot`
  console.log('running in context');
  vm.runInNewContext(result.snapshotScript, undefined, {
    filename: snapshotScriptPath,
    displayErrors: true,
  });

  const outputBlobPath = path.resolve(__dirname, '../cache/');
  console.log(`Generating startup blob in "${outputBlobPath}"`);
  try {
    childProcess.execFileSync(
      path.resolve(
        __dirname,
        '..',
        'node_modules',
        '.bin',
        'mksnapshot' + (process.platform === 'win32' ? '.cmd' : '')
      ),
      [snapshotScriptPath, '--output_dir', outputBlobPath],
      { stdio: 'inherit' }
    );
  } catch {
    // actual errors go to stdio
    throw new Error("Error in mksnapshot")
  }
}

main().then(
  () => console.log('done'),
  (err) => console.error(err)
);

This was previously working fine. after re-downloading electron things stopped working. The script executes correctly in runInNewContext as well

contents of the snapshot/imports.js file

require("react")
require("react-dom")

Resolved package versions
"electron-mksnapshot": "^21.0.0",
"electron": "^21.2.3",
"electron-link": "^0.6.0",

System info:
MacOS 12.6 arm64

[craftzdog]

Had the same issue, but looks like it's been already resolved here: electron/electron#36378

[jkleinsc]

• Fixed via chore: update version to v21.3.3 #78. You will need to update mksnapshot to 21.3.3