Webpack resolve.alias cannot find module Cannot find module

the project structure is as follows:

import sign from "common/utils/sign";

console.log(sign("hello"));

webpack.config.js configure alias

resolve: {
    alias: {
        common: "../common"
    }
}

error when starting app project:

ERROR in [at-loader] ../common/utils/sign:1:1 
    TS2307: Cannot find module "md5".

if the alias configured below is not under the current project, how to configure node_modules.
if I install dependencies in the common project, webpack will repeat the files in common/node_modules when packaging.
what should I do with this situation?

Typescript webpack javascript

Mar.10,2021

md5 should be a third-party library, which has nothing to do with alias. It should be npm install md5

what is your directory structure

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