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

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Mik (@espositomichele961-6) · 2026-02-14

## 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
```bash
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/](https://vercel.com/espositomichele961-gmailcoms-projects/neuralift-backend/)


Mik (@espositomichele961-6) · 2026-02-14

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