Program during the claim function

Question

This is the error info:

Error: failed to send transaction: Transaction simulation failed: Error processing Instruction 0: Program failed to complete
      at Connection.sendEncodedTransaction (node_modules/@solana/web3.js/src/connection.ts:4465:13)
      at processTicksAndRejections (node:internal/process/task_queues:96:5)
      at Connection.sendRawTransaction (node_modules/@solana/web3.js/src/connection.ts:4424:20)
      at sendAndConfirmRawTransaction (node_modules/@project-serum/anchor/src/provider.ts:284:21)
      at AnchorProvider.sendAndConfirm (node_modules/@project-serum/anchor/src/provider.ts:144:14)
      at Object.rpc [as claimVestment] (node_modules/@project-serum/anchor/src/program/namespace/rpc.ts:29:16)

Could there be a problem with this:

token::transfer(
            CpiContext::new_with_signer(
                ctx.accounts.token_program.to_account_info(),
                token::Transfer {
                    from: ctx.accounts.vested_tokens.to_account_info(),
                    to: ctx.accounts.beneficiary_token_account.to_account_info(),
                    authority: ctx.accounts.vested_tokens.to_account_info(),
                },
                &[&[
                    b"vested-tokens",
                    vestment.key().as_ref(), //probably the problem
                    &[*ctx.bumps.get("vested-tokens").unwrap()],
                ]],
            ),
            *amount_to_claim,
        )?;

        vestment.amount_claimed = vestment.amount_claimed.checked_add(*amount_to_claim).unwrap();

        if vestment.amount_vested-vestment.amount_claimed==0 {
            vestment.is_active=false;
        }

In tests, this is how I call this instruction:

const txClaim1 = await program.rpc.claimVestment({
            accounts: {
                ledger: ledger,
                vestment: newVestment,
                beneficiary: beneficiary.publicKey,
                beneficiaryTokenAccount: beneficiaryTokenAccount,
                vestedTokens: vestedTokens,
                vestedTokensMint: tokenMint,
                tokenProgram: TOKEN_PROGRAM_ID,
                systemProgram: anchor.web3.SystemProgram.programId,
            },
            signers: [beneficiary],
        });

        await connection.confirmTransaction(txClaim1);

Any ideas?

Answer 1

without knowing anything about this bumps feature, i assume the error is unwrapping ctx.bumps.get("vested-tokens") and that the string is supposed to be snake case

but more broadly to debug this sort of issue, "Program failed to complete" means a panic. i would:

• disable preflight checks on your connection object (i dont know offhand how this is done in anchor, Provider tries to hide a lot of details like this)
• run solana-test-validator yourself
• run solana logs -u l alongside it
• run anchor test with --skip-local-validator

and look at the logs produced to find the actual error. msg! can be used to print whatever you need inside the program