Remix: Simple solidity function errored: gas required exceeds allowance or always failing transaction

Question

I have a problem with simple solidity code in Remix. Even I give 10 ETH(testnet) to the contract C but it doesn't work. Error is:

transact to C.makeContract errored: gas required exceeds allowance or always failing transaction

pragma solidity ^0.4.21;

contract A{
    uint public a;
    function setA(uint _a){
        a = _a;
    }
    function getData() constant returns (uint){
        return a;
    }
}

contract B is A {
    function getData() constant returns (uint) {
        return a * 10;
    }
}

contract C {
    A[] internal c;
    function () payable {}
    function makeContract() returns (uint, uint){ //I have no idea why     this function occurs error
        c.length = 2;
        A a = new A();
        a.setA(1);
        c[0] = a;
        B b = new B();
        b.setA(1);
        c[1] = b;
        return (c[0].getData(), c[1].getData());
    }
}

Here is my solidity code. HELP ME PLZ!!

Answer 1

I think the problem is that your are calling C.makeContract with ether but your function is not payable.

Send your transaction without ether and it should be fine. You need to understand the difference between value and Gas limit.