Glad to help you with your problem. However, I see no code in your message. Glue the relevant code of code that is causing the error and I will do my best to help it.
That said, here is a general guide on how to use IDL (interface definition language) for the development of Solana’s back -end:
Problem
The Typeerror error: You cannot read indefinite properties ('size' reading) indicates that there is a problem when accessing a property called ‘sizeon an object. This can happen when trying to initialize an object using IDL.
Solution
To solve this problem, you need to ensure that theIDLobject is initialized properly before trying to access its properties. Here are some steps you can follow:
- Import theSleep
module of your file./Sleep.js:
JavaScript
Import {Sleep} of’/sleep ‘;
`
- Initialize the
IDLobject using the builderIDL:
`JavaScript
Consta IDL = new IDL ();
`
- Make sure you have a valid interface definition for your Solana back -end. You can create one in a separate file, for example,
solana.idl.
Here is an example of how your solaa.idl file can be:
`IDL
// solana.idl
Interface user {
ID: string;
}
Interface Requestvent {
Message: String;
}
`
- Import the
Sleepmodule of your file./Sleep.jsand use -o to create an instance of the user interface:
`JavaScript
Import {Sleep} of’/sleep ‘;
CONST USER = new user ();
`
- Now you can access the
sizeproperty in the objectIDLusing the points notation:
`JavaScript
console.log (user.size); // Exit: indefinite
// initialize the IDL with a valid interface definition
IDL = New IDL ({
User,
Rebuke
});
CONST USER2 = new user ();
console.log (user2.size); // Output: 1
`
By following these steps, you can solve the error and initialize the Solana back -end using IDL.
Pass any code or files that may help me provide a more specific solution.