TypeError: e._formData.get is not a function when calling a Server Action in Next.js
The culprit is the isomorphic-form-data package, pulled in by older Appwrite and Twilio SDKs: it overwrites Node's native global.FormData with the form-data package, which does not implement the Web FormData#get() API that React Server Actions require. A maintainer reproduced the exact error only when that package was…
Problem outcome: unknown