Absolute path not working

[JamesParkDev]

Expected behavior: It should handle paths provided Actual behavior: It does not resolve them and puts the same path as in .ts file

gulpfile:

"use strict";

const gulp = require("gulp");
const ts = require("gulp-typescript");
const clean = require("gulp-clean");

gulp.task("clean", function() {
    return gulp.src("build", { read: false, allowEmpty: true }).pipe(clean({ force: true }));
});

gulp.task("js", function() {
    const proj = ts.createProject("tsconfig.json");
    return gulp
        .src(["./src/**/*.ts", "./config/**"])
        .pipe(proj())
        .pipe(gulp.dest("build"));
});

gulp.task("default", gulp.series("clean", "js"));

tsconfig.json

{
    "compilerOptions": {
        /* Basic Options */
        "target": "es2017" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */,
        "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
        // "lib": [],                             /* Specify library files to be included in the compilation. */
        // "allowJs": true,                       /* Allow javascript files to be compiled. */
        // "checkJs": true,                       /* Report errors in .js files. */
        // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
        // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
        // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
        // "sourceMap": true,                     /* Generates corresponding '.map' file. */
        // "outFile": "./",                       /* Concatenate and emit output to single file. */
        "outDir": "./build" /* Redirect output structure to the directory. */,
        //"rootDir": "./src" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */,
        // "composite": true,                     /* Enable project compilation */
        // "removeComments": true,                /* Do not emit comments to output. */
        //"noEmit": true,                        /* Do not emit outputs. */
        // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
        // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
        // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */

        "resolveJsonModule": true,
        /* Strict Type-Checking Options */
        "strict": true /* Enable all strict type-checking options. */,
        // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
        // "strictNullChecks": true,              /* Enable strict null checks. */
        // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
        // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
        "strictPropertyInitialization": false /* Enable strict checking of property initialization in classes. */,
        // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
        // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */

        /* Additional Checks */
        // "noUnusedLocals": true,                /* Report errors on unused locals. */
        // "noUnusedParameters": true,            /* Report errors on unused parameters. */
        // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
        // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */

        /* Module Resolution Options */
        // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
        "baseUrl": "./" /* Base directory to resolve non-absolute module names. */,
        "paths": {
            "@config/*": ["./config/*"],
            "@assets/*": ["./src/assets/*"],
            "@structure/*": ["./src/structure/*"]
        },
        "rootDirs": [
            "./src",
            "./config"
        ] /* List of root folders whose combined content represents the structure of the project at runtime. */,
        //"typeRoots": ["./src/typings/index.d.ts"],                       /* List of folders to include type definitions from. */
        //"types": ["./src/typings/index.d.ts"],                           /* Type declaration files to be included in compilation. */
        // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
        "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
        // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */

        /* Source Map Options */
        // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
        // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
        // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
        // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */

        /* Experimental Options */
        "experimentalDecorators": true /* Enables experimental support for ES7 decorators. */,
        "emitDecoratorMetadata": true /* Enables experimental support for emitting type metadata for decorators. */
    }
}

[JamesParkDev]

Resolved with gulp-ts-alias package by adding

gulp.pipe(alias({ configuration: proj.config }))