Cannot build vega-epg-sample and vega-scrolling-sample

Vega Open Beta Q&A
1

I am trying to build vega-epg-sample and vega-scrolling-sample applications and getting the following error:

2026-01-09 11:57:49.374 [warning] npm error code ETIMEDOUT
npm error errno ETIMEDOUT
npm error network request to https://k-artifactory-external.qa.kepler.labcollab.net/artifactory/api/npm/kepler-npm-qa-local/@amazon-devices/keplerscript-native-ui-components/-/@amazon-devices/keplerscript-native-ui-components-2.11.3.tgz failed, reason: 

2026-01-09 11:57:49.375 [warning] npm error network This is a problem related to network connectivity.
npm error network In most cases you are behind a proxy or have bad network settings.
npm error network
npm error network If you are behind a proxy, please make sure that the
npm error network 'proxy' config is set properly.  See: 'npm help config'

The build machine is not behind the proxy.

Is keplerscript-native-ui-components-2.11.3.tgz accessible?

3

Hi @Boris_Rekhtman,

Thank you for reporting this build issue with the vega-epg-sample and vega-scrolling-sample applications.

Our team is looking into it and will provide an update as soon as we have more information. To help us investigate further, could you please confirm:

  1. Are you experiencing this build issue only with these two sample apps (vega-epg-sample and vega-scrolling-sample), or are you facing similar errors with other Vega applications as well?

  2. Could you verify your npm registry configuration? The recommended registry for Vega development should be:

    @amzn:registry=https://k-artifactory-external.labcollab.net/artifactory/api/npm/kepler-npm-prod-local/

We’re actively working on a resolution and will update you as soon as we have more information.

Thanks for helping us improve the Vega platform.

Warm regards,
Aishwarya

4

Thank you, Aishwarya

The issue is only with vega-epg-sample and vega-scrolling-sample. Only those two projects explicitly reference keplerscript-native-ui-components-2.11.3.tgz in package-lock.json :

    "node_modules/@amazon-devices/keplerscript-native-ui-components": {
      "version": "2.11.3",
      "resolved": "https://k-artifactory-external.qa.kepler.labcollab.net/artifactory/api/npm/kepler-npm-qa-local/@amazon-devices/keplerscript-native-ui-components/-/@amazon-devices/keplerscript-native-ui-components-2.11.3.tgz",
      "integrity": "sha512-v0gbPM+s4bYc5obY0NWSktLd7uC1spVqalI6NjPYKkrzREq2MRC4oFNc3MoVpsA7uR2MNdraTQ/KQDkijMiq/w==",
      "dependencies": {
        "@amazon-devices/react-native-kepler": "^2.0.0",
        "ansi-colors": "^4.1.3",
        "react": "^18.2.0",
        "react-native": "^0.72.0",
        "recyclerlistview": "^4.2.0"
      },
      "peerDependencies": {
        "react": "^18.2.0",
        "react-native": "^0.72.0"
      }
    },
5

Hi @Boris_Rekhtman,

Following up on the build issue you reported. If you’re still experiencing problems, please follow these steps:

  1. Delete the package-lock.json file from your project directory
  2. Run npm install to regenerate the lock file with correct dependencies
  3. Rebuild your project

Could you confirm if this resolves the issue on your end?

Warm regards,
Aishwarya

6

Thank you @Aishwarya , the build now works.