Vercel deployment failure with 'Error: Something went wrong' during builder installation

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1

Problem

My deployments started failing yesterday with Error: Something went wrong! immediately after Installing Builder.

Observations

  • The logs show the system is using Vercel CLI 50.17.0, which was released yesterday.
  • Previous working commits now fail with the same error.
  • It appears to be a regression in Vercel CLI 50.17.0 regarding builder dependencies.

Logs

11:23:40.831 Running build in Washington, D.C., USA (East) – iad1  
11:23:40.831 Build machine configuration: 2 cores, 8 GB  
11:23:40.841 Cloning github.com/Michele961/Neuralift (Branch: main, Commit: a1e2d2c)  
11:23:40.842 Skipping build cache, deployment was triggered without cache.  
11:23:42.506 Cloning completed: 1.665s  
11:23:42.897 Running “vercel build”  
11:23:43.495 Vercel CLI 50.17.0  
11:23:44.471 > Installing Builder: @vercel/node@5.5.33  
11:23:55.841 Error: Something went wrong!

Production URL: https://vercel.com/espositomichele961-gmailcoms-projects/neuralift-backend/

5

Solved by fix: update backend vercel.json to version 2 format