Double check that your function call has the same parameters as the function definition in solidity. If your function is using msg.value then you must not pass in a parameter for the ether amount. Instead use the optional options object. Eg.

function hello(string name) public {
  someName = name;
  require(msg.value>10);
}
///web3
hello({from:accounts[0],value:100}).then(()=>{})

If that’s not the problem AND you’re using truffle then your build files are stale. Delete everything in your build folder manually and then migrate again. Whenever you add or remove functions in your solidity, do this step.