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blockchain smartcontracts

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Accepted Answer Available
Accepted Answer
April 23, 2026 Score: 3 Rep: 398 Quality: High Completeness: 50%

Cell overflow means your contract's initial data is too big for TON's limits (over 1023 bits).

Add default(0) to your count variable:

contract Counter {
    count: Int as u32 default(0);  // This shrinks the init cell
    get fun get_count(): Int {
        return self.count;
    }
    receive(msg: Inc) {
        self.count += 1;
    }
}

Then run toncli deploy again. This works because testnet enforces stricter cell sizes than local testing.