4) [electron] › test/e2e/smoke.test.ts:15:5 › on first run the Welcome window renders ──────────── Error: electron.launch: Electron failed to install correctly, please delete node_modules/electron and try installing again at helpers.ts:46 44 | } 45 | try { > 46 | const app = await electron.launch({ | ^ 47 | args: ['.', `--user-data-dir=${userDataDir}`] 48 | }); 49 | await stubAllDialogs(app); at launchApp (/home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/helpers.ts:46:17) at /home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/smoke.test.ts:16:32

3) [electron] › test/e2e/smoke.test.ts:4:5 › app launches and opens at least one window ────────── Retry #2 ─────────────────────────────────────────────────────────────────────────────────────── Error: electron.launch: Electron failed to install correctly, please delete node_modules/electron and try installing again at helpers.ts:46 44 | } 45 | try { > 46 | const app = await electron.launch({ | ^ 47 | args: ['.', `--user-data-dir=${userDataDir}`] 48 | }); 49 | await stubAllDialogs(app); at launchApp (/home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/helpers.ts:46:17) at /home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/smoke.test.ts:5:32

3) [electron] › test/e2e/smoke.test.ts:4:5 › app launches and opens at least one window ────────── Retry #1 ─────────────────────────────────────────────────────────────────────────────────────── Error: electron.launch: Electron failed to install correctly, please delete node_modules/electron and try installing again at helpers.ts:46 44 | } 45 | try { > 46 | const app = await electron.launch({ | ^ 47 | args: ['.', `--user-data-dir=${userDataDir}`] 48 | }); 49 | await stubAllDialogs(app); at launchApp (/home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/helpers.ts:46:17) at /home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/smoke.test.ts:5:32

3) [electron] › test/e2e/smoke.test.ts:4:5 › app launches and opens at least one window ────────── Error: electron.launch: Electron failed to install correctly, please delete node_modules/electron and try installing again at helpers.ts:46 44 | } 45 | try { > 46 | const app = await electron.launch({ | ^ 47 | args: ['.', `--user-data-dir=${userDataDir}`] 48 | }); 49 | await stubAllDialogs(app); at launchApp (/home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/helpers.ts:46:17) at /home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/smoke.test.ts:5:32

2) [electron] › test/e2e/python-env.test.ts:32:7 › with a seeded Python environment › "New notebook" boots a server and the labview reaches its URL Retry #2 ─────────────────────────────────────────────────────────────────────────────────────── Error: electron.launch: Electron failed to install correctly, please delete node_modules/electron and try installing again at helpers.ts:46 44 | } 45 | try { > 46 | const app = await electron.launch({ | ^ 47 | args: ['.', `--user-data-dir=${userDataDir}`] 48 | }); 49 | await stubAllDialogs(app); at launchApp (/home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/helpers.ts:46:17) at /home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/python-env.test.ts:34:34

2) [electron] › test/e2e/python-env.test.ts:32:7 › with a seeded Python environment › "New notebook" boots a server and the labview reaches its URL Retry #1 ─────────────────────────────────────────────────────────────────────────────────────── Error: electron.launch: Electron failed to install correctly, please delete node_modules/electron and try installing again at helpers.ts:46 44 | } 45 | try { > 46 | const app = await electron.launch({ | ^ 47 | args: ['.', `--user-data-dir=${userDataDir}`] 48 | }); 49 | await stubAllDialogs(app); at launchApp (/home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/helpers.ts:46:17) at /home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/python-env.test.ts:34:34

2) [electron] › test/e2e/python-env.test.ts:32:7 › with a seeded Python environment › "New notebook" boots a server and the labview reaches its URL Error: electron.launch: Electron failed to install correctly, please delete node_modules/electron and try installing again at helpers.ts:46 44 | } 45 | try { > 46 | const app = await electron.launch({ | ^ 47 | args: ['.', `--user-data-dir=${userDataDir}`] 48 | }); 49 | await stubAllDialogs(app); at launchApp (/home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/helpers.ts:46:17) at /home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/python-env.test.ts:34:34

1) [electron] › test/e2e/python-env.test.ts:16:7 › with a seeded Python environment › the welcome local-server actions are enabled Retry #2 ─────────────────────────────────────────────────────────────────────────────────────── Error: electron.launch: Electron failed to install correctly, please delete node_modules/electron and try installing again at helpers.ts:46 44 | } 45 | try { > 46 | const app = await electron.launch({ | ^ 47 | args: ['.', `--user-data-dir=${userDataDir}`] 48 | }); 49 | await stubAllDialogs(app); at launchApp (/home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/helpers.ts:46:17) at /home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/python-env.test.ts:17:34

1) [electron] › test/e2e/python-env.test.ts:16:7 › with a seeded Python environment › the welcome local-server actions are enabled Retry #1 ─────────────────────────────────────────────────────────────────────────────────────── Error: electron.launch: Electron failed to install correctly, please delete node_modules/electron and try installing again at helpers.ts:46 44 | } 45 | try { > 46 | const app = await electron.launch({ | ^ 47 | args: ['.', `--user-data-dir=${userDataDir}`] 48 | }); 49 | await stubAllDialogs(app); at launchApp (/home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/helpers.ts:46:17) at /home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/python-env.test.ts:17:34

1) [electron] › test/e2e/python-env.test.ts:16:7 › with a seeded Python environment › the welcome local-server actions are enabled Error: electron.launch: Electron failed to install correctly, please delete node_modules/electron and try installing again at helpers.ts:46 44 | } 45 | try { > 46 | const app = await electron.launch({ | ^ 47 | args: ['.', `--user-data-dir=${userDataDir}`] 48 | }); 49 | await stubAllDialogs(app); at launchApp (/home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/helpers.ts:46:17) at /home/runner/work/jupyterlab-desktop/jupyterlab-desktop/test/e2e/python-env.test.ts:17:34

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830, actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Node.js 20 will be removed from the runner on September 16th, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/