Node.js error after EntityFramework Core installation #1222

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fergalmoran · 2025-08-09T17:19:19Z

fergalmoran commented

2025-08-09 17:19:19 +00:00

Originally created by @EmaGht on 11/29/2016

Hi, once i downloaded this template and created a new project i installed Microsoft.EntityFrameworkCore 1.1.0 from nuget and at the startup, my browser shows this message:

Exception: Call to Node module failed with error: Error: Zone.js has detected that ZoneAwarePromise (window|global).Promise has been overwritten.
Most likely cause is that a Promise polyfill has been loaded after Zone.js (Polyfilling Promise api is not necessary when zone.js is loaded. If you must load one, do so before loading zone.js.)

I'm only using this template and nuget to install EF.Core, I haven't done any other modifications to the project files whatsoever.

Regards,
Ema

*Originally created by @EmaGht on 11/29/2016* Hi, once i downloaded this template and created a new project i installed Microsoft.EntityFrameworkCore 1.1.0 from nuget and at the startup, my browser shows this message: Exception: Call to Node module failed with error: Error: Zone.js has detected that ZoneAwarePromise `(window|global).Promise` has been overwritten. Most likely cause is that a Promise polyfill has been loaded after Zone.js (Polyfilling Promise api is not necessary when zone.js is loaded. If you must load one, do so before loading zone.js.) I'm only using this template and nuget to install EF.Core, I haven't done any other modifications to the project files whatsoever. Regards, Ema

fergalmoran closed this issue

2025-08-09 17:19:19 +00:00

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Reference: github/JavaScriptServices#1222