It's hard to say something on basis of this error. But most probably, as it says, the program needs an index.html file. Maybe you renamed it or deleted it. Can you DM me codesandbox of your app if you didn't find a solution?
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It's hard to say something on basis of this error. But most probably, as it says, the program needs an index.html file. Maybe you renamed it or deleted it. Can you DM me codesandbox of your app if you didn't find a solution?