Import "@" does not work in Visual Studio Code

Blockchain Programming Course
#1

Hi all,

why import “@” does not work in Visual Studio Code? I have following example:

This does not work, with following error (Source … not found):

 import '@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol';

image
When I manually navigate it to the local file like this, it works fine of course:

import '../node_modules/@uniswap/lib/contracts/libraries/TransferHelper.sol';

Can you help? Thanks.
Tommy