Solana: 8 byte discriminator did not match what was expected when initail PDA account

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Title:

Error in 8 bytes discriminator for initial PDA account in the solana node

Introduction:

Solana is a rapid and scalable decentralized blockchain platform that uses a consensus algorithm called Stake Proof (POS). One of Solana’s main features is its ability to create program data data (PDAs), which are used to store data for programs deployed on the network. In this article, we will discuss an error that can occur by booting a PDA account in a Solana node.

The question:

The 8 bytes discriminator in the initial function is not corresponded correctly to the expected value when creating a new PDA account. This incompatibility can cause errors during the startup process.

Code Explanation:

To better understand the issue, let's look at the code passage that creates a new PDA account:

Solana

Import {program_data_account_type} of “@solana/web3.js”;

Import {CreateProgramdataACCount} of “./program-data-caccount”;

Consta Mainprogramid = “Main-Program-ID”; // Replace with your main program ID

ConstialPdapubkey = AWAIT PROGRAMIDTOPUBKEY (MAINPROGRAMID);

ConstitialisErispubkey = Await ProgramTopubKkey (“Deserresis”);

Const remainingpubkey = awaits programmidtopubkey (“remaining”);

Consta PdaaccountinitParams = {

Pudges: [

{

Type: Program_Data_account_Type,

VALUE: INITIALPDAPUBKEY,

},

{type: program_data_account_type, value: remainingpubkey},

],

};

Const PDAACCOUNT = AWAIT CREATEPROGRAMDATAACCOUNT (PDAACCOUNTINITPARASS);

`

The error:

After reviewing the code snippet, we can see that there are two `Pudges '' on the 'PdaaccountinitParams' object. However, the expected value is only for one of them (Initialpdapubkey). This discrepancy causes the 8 bytes discriminator incompatible with what is expected.

Conclusion:

To solve this problem, you must update the code snippet to correspond to the twoPudges ‘in the objectPdaaccoundinitParams'. Here is an updated version of the code:

Solana

Import {program_data_account_type} of “@solana/web3.js”;

Import {CreateProgramdataACCount} of “./program-data-caccount”;

Consta Mainprogramid = “Main-Program-ID”; // Replace with your main program ID

ConstialPdapubkey = AWAIT PROGRAMIDTOPUBKEY (MAINPROGRAMID);

Const remainingpubkey = awaits programmidtopubkey (“remaining”);

Consta PdaaccountinitParams = {

Pudges: [

{type: program_data_account_type, value: initialpdapubkey},

{type: program_data_account_type, value: remainingpubkey},

],

};

Const PDAACCOUNT = AWAIT CREATEPROGRAMDATAACCOUNT (PDAACCOUNTINITPARASS);

`

By updating the pdaaccountinitparams object to include both ‘pubkeys’, you will be able to solve the error and successfully initialize your PDA account in a Solana node.

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