Problem I am experiencing a deployment failure on Vercel even though the build completes successfully. Current Behavior The failure occurs during the “Deploying outputs” phase with the following message: Error: We encountered an internal error. Please try again. The build logs show: Next.js 16…

Glad it’s working! Latest update: Due to operational issues in the dxb1 region, traffic is currently re-routed to bom1. Additionally, dxb1 is currently unavailable as a Function Region for new deployments. [image] Dubai region (dxb1) is unavailable Vercel's Status Page - Dubai regio…

Still broken after changing middleware.ts to proxy.ts. Running build in Washington, D.C., USA (East) – iad1 … Traced Next.js server files in: 86.723ms Created all serverless functions in: 113.409ms Collected static files (public/, static/, .next/static): 9.057ms Build Completed in /vercel/outp…

Facing same issue since morning with region iad1 19:49:09.153 Traced Next.js server files in: 49.168ms 19:49:09.461 Created all serverless functions in: 306.335ms 19:49:09.580 Collected static files (public/, static/, .next/static): 6.49ms 19:49:10.046 Build Completed in /vercel/output [1m] 19:…

Facing the same issue Function Region: **iad1 Note: I am already using proxy not middleware Traced Next.js server files in: 164.055ms Created all serverless functions in: 829.732ms Collected static files (public/, static/, .next/static): 14.495ms Build Completed in /vercel/output [2m] Deployi…

Hi @mattnewnham-6535 , welcome to the Vercel Community! The reason for builds breaking isn’t the filename but the infrastructure to support Middleware functions. Our team is working on a fix and update here once we have rolled out fixes.

middleware to proxy migration worked for my nodejs project

Same here from Indonesia. Function region: iad1

Same here, fra1 region (EU). Any workaround?

Vercel deployment failure with internal error during deploying outputs phase

Help

noveetechcloud-4705 (Novee Tech) March 2, 2026, 2:31pm 179

Same issue here. I’m on Washington region (default). No functions.

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Vercel deployment failure with internal error during deploying outputs phase

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