Algorand Studio ,[Opt in] --> address seems to be malformed

I have a error as link : please help me , thanks.

Could you post some of the code you’re using to submit the transaction(s)? I see some TEAL logic, but that isn’t enough to go off of to find the error… :thinking:

thanks you , but IDE algorand studio support create asset , submit transaction , build smart contract … . screen capture is all code.

It seems the problem is that you didn’t define Alice’s account in the ’ “accounts”: [ ], ’
part of 1.opt_in.json

According to the of the Github here, you need to define the addresses involved in the transaction.

Disclaimer: I haven’t used this software

good idea , thanks you very much