I was sending SOL from one of my wallets to another but I accidently sent SOL to file system wallet which I used to create token via CLI with .json extention . Now I cant send that SOL to nowhere basicly I cant use that SOL . Any help ? If I can rescue that SOL I ll share a bit with you .
Yeah, like @Emery said, you have to have a .json key for the other account you are trying to use to fund the transaction.
So if that other wallet is a Phantom wallet you have to export the key from Phantom, and convert it to JSON. The other wallet was made in Sollet, Sollet will just export a JSON for you that you can put into a file.