Unable to import "undefined": Not Found

[SudeshGagare]

import "openzeppelin-solidity/contracts/token/ERC20/ERC20.sol";

Unable to import "undefined": Not Found

[chatch]

could you send more information?

[SudeshGagare]

https://github.com/chatch/hashed-timelock-contract-ethereum/blob/master/contracts/HashedTimelockERC20.sol

I am not able to compile this code

[SudeshGagare]

iam using Solidity Compiler version 0.5.17+commit.d19bba13
It shows Unable to import "openzeppelin-solidity/contracts/token/ERC20/ERC20.sol": File not found