Error! Unable to generate Contract ByteCode and ABI (Expected library(ies) but one or more was not provided) Found the following ContractName(s) in source code : Context , CurryCoin , DividendPayingToken , DividendPayingTokenInterface , DividendPayingTokenOptionalInterface , DividendTracker , ERC20 , IERC20 , IERC20Metadata , IUniswapV2Factory , IUniswapV2Pair , IUniswapV2Router01 , IUniswapV2Router02 , IterableMapping , Ownable , SafeMath , SafeMathInt , SafeMathUint But we were unable to locate a matching bytecode (err_code_2) For troubleshooting, you can try compiling your source code with the Remix - Solidity IDE and check for exceptions