Mark Cuban on the 3 biggest mistakes he sees entrepreneurs make that lead to guaranteed failure

Mark Cuban, a tech billionaire and investor on ABC's “Shark Tank,” has seen it all when it comes to entrepreneurs.

When it comes to building a successful business, there are some mistakes Cuban has seen that entrepreneurs should avoid at all costs.

Entrepreneurs should make sure that they're building a product that solves a problem, not just a feature. And don't look at competitors as validation; instead, they should make an entrepreneur uneasy.

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By nature, entrepreneurs are intelligent, passionate, ambitious people. But all of those smarts and drive don't always mean every business owner makes all the right decisions all of the time. Hopefully the blunders that are made aren't big enough that the business fails.

We reached out to tech billionaire Mark Cuban to find out the things that entrepreneurs do that absolutely drive him bonkers. As a longtime investor on ABC's hit TV show “Shark Tank,” Cuban has encountered his fair share of entrepreneurs who've made some serious missteps.

Whether you're looking for investment money or quietly growing your business, Cuban says to avoid making the following mistakes at all costs.