Error creating RWA Metadata: unknown signer: 8YPeMc8CkWyW95SExgKz6o8pKuKfn1H3Bqvu6HWk81dX

External question — Solana Stack Exchange Author: Joshua Akpansunday Original post: https://solana.stackexchange.com/questions/16190 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. #[program] pub mod rwa_tokenization { use super::*; // Initialize RWA metadata and mint pub fn initialize_rwa( ctx: Context<InitializeRwa>, uri: String, name: String, total_supply: u64, price_per_fraction: u64 ) -> Result<()> { // Validate the URI and name lengths require!(uri.len() <= 200, RwaError::UriTooLong); require!(name.len() <= 50, RwaError::NameTooLong); // Set up the RWA metadata let rwa_metadata = &mut ctx.accounts.rwa_metadata; rwa_metadata.uri = uri; rwa_metadata.name = name; rwa_metadata.creator = *ctx.accounts.creator.key; rwa_metadata.total_supply = total_supply; rwa_metadata.price_per_fraction = price_per_fraction; rwa_metadata.current_holders = 0; rwa_metadata.mint = ctx.accounts.mint.key(); Ok(()) } #[derive(Accounts)] pub struct InitializeRwa<'info> { #[account( init, payer = creator, space = 8 + // discriminator 32 + // creator (Pubkey) 32 + // mint (Pubkey) 8 + // total_supply (u64) 8 + // price_per_fraction (u64) 8 + // current_holders (u64) 4 + 200 + // uri (String max 200 chars) 4 + 50 // name (String max 50 chars) )] pub rwa_metadata: Account<'info, RWAMetadata>, #[account(mut)] pub creator: Signer<'info>, #[account( init, payer = creator, mint::decimals = 2, mint::authority = creator, )] pub mint: InterfaceAccount<'info, Mint>, pub system_program: Program<'info, System>, pub token_program: Program<'info, Token2022>, pub rent: Sysvar<'info, Rent>, } #[account] pub struct RWAMetadata { pub uri: String, // Max 200 characters pub name: String, // Max 50 characters pub creator: Pubkey, pub mint: Pubkey, pub total_supply: u64, pub price_per_fraction: u64, pub current_holders: u64, } #[error_code] pub enum RwaError { #[msg("The amount exceeds the total supply")] ExceedsTotalSupply, #[msg("Calculation error")] CalculationError, #[msg("URI is too long (max 200 characters)")] UriTooLong, #[msg("Name is too long (max 50 characters)")] NameTooLong, }

External answer — Solana Stack Exchange Author: Jimii Original post: https://solana.stackexchange.com/a/16191 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. unknown signer error might occur when you try to send your transaction with a non-signer address. In your test cases, is the creator address similar to that of your anchor workspace?