I don't have enough reputations to comment so am posting this as a solution. Might not solve your problem but maybe help you think in editing your query to provide more details.

What's your OS? What's the error you're getting?

With the limited info you've posted, I can suggest the following. I'm assuming you're a beginner (I was clueless too a while ago) so pardon me if you're not: Run these sudo apt update, sudo apt upgrade --yes, sudo apt install python3-pip --yes; and then try installing LiteRT using pip3 install tflite-runtime

PC