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Try running: cargo update -p [email protected] --precise 0.9.3

A solution is in the warning message: prefix it with an underscore: _ctx For example: pub fn initialize(_ctx: Context<Initialize>) -> Result<()> { ... } Generally, you'll use the con …

Is this what you mean when you say "smart contract itself to get the current time"? #[program] mod hello_anchor { use super::*; pub fn initialize(ctx: Context<Initialize>) -> Result<()> { …

From the answer of this question: Partial-Sign Transaction from Front-end partialSign is an API of the web3.js Transaction object, but not the new VersionedTransaction object, which has only a sign m …

First run solana-test-validator in a separate terminal before running solana airdrop If you'd like to switch to devnet, run solana config set --url devnet or solana config set -u d. Note on devnet you …

Not sure about the cause of the error you're getting, but here are two examples from the Solana Developers repo you can reference for using PDAs and transferring SOL within a native Solana program. ht …

When using Solana Playground with the endpoint set to localhost, you'll also need to have a local validator running. You'll first need to install the Solana CLI. Then, in a separate terminal, run: sol …

Under the hood, findAllByOwner uses getProgramAccounts, which might be disabled on the public mainnet-beta endpoint. Helius is an option that provides mainnet/devnet rpc endpoints with free tier. You …

Update the initialize_token_mint instruction to also create a token metadata account. Here's a reference initialize instruction that: initialize a mint creates a metadata account for the mint mints t …

Add solana-program to Cargo.toml [dependencies] solana-program = "*" Add the following to lib.rs use solana_program::{pubkey, pubkey::Pubkey}; Then you can hardcode pubkeys like this pub const SOME_ …

The reason your initialize_user instruction requires two signers is because of the init and payer constraints on the user_profile account. #[account(init, payer = user, space = 8 + (32 * 8) + 1)] …

Here is a minimal example on Solana playground: You can create a custom Anchor errors and then use checked_add(1).ok_or(MyErrors::CustomError) use anchor_lang::prelude::*; // This is your program's p …

Switchboard has one https://switchboard.xyz/randomness Here's a basic walkthrough on how to use Switchboard VRF https://github.com/switchboard-xyz/vrf-demo-walkthrough Here's a demo of using Switchboa …

In your transaction, you're using the publickey of the connected wallet as the helloQueue account. const { publicKey, sendTransaction } = useWallet(); <--- using the publicKey of the connected walle …

An NFT's "collection" field is stored on it's Metadata Account, so you would need to build and an instruction that requires the Metadata Account for the NFT to be provided to the instruction. Here's m …