> 1. No actual customer. You built something you THOUGHT people wanted, but they actually didn't.
>
> 2. Bad/No Marketing.
I'd even say it's most always 2. If people don't want it, then your marketing just failed to attract the matching customers. Instead, there is also the case of a poor executed product. It's something people want, but can't use because it's not good enough for what it aims to deliver. I guess everyone knows those cases of software which are 90%+ matching their demand, but missing that one little detail which makes them unattractive as a whole.
I'd even say it's most always 2. If people don't want it, then your marketing just failed to attract the matching customers. Instead, there is also the case of a poor executed product. It's something people want, but can't use because it's not good enough for what it aims to deliver. I guess everyone knows those cases of software which are 90%+ matching their demand, but missing that one little detail which makes them unattractive as a whole.