Invalid private key!

Does anyone have an idea why it would throw such error, I have tried all possible measures

[zennomi]

You should add 0x to the private key.
Ex: 0xabcdef

[coursewarefactory]

@zennomi, where is it necessary to put the private key?

[inmarelibero]

@zennomi, where is it necessary to put the private key?

in the --pk ... parameter when running npx @uniswap/deploy-v3 --pk ...