Nope, there's no reliable solution for them, as of yet.
There's hope that hallucinations will be solved by someone, somehow, soon... but hope is not a strategy.
There's also hype about non-stop progress in AI. Hype is more a strategy... but it can only work for so long.
If no solution materializes soon, many early-adopter LLM projects/trials will be cancelled. Sigh.