'Angular CLI throw error when a library has routing lazy loading syntax and try to build it. Any help on this is appreciated

Compiling with Angular sources in Ivy partial compilation mode.(node:28784) [DEP0148] DeprecationWarning: Use of deprecated folder mapping "./" in the "exports" field module resolution of the package at C:\src\spaexample\axcess-spa-mainapp\node_modules\tslib\package.json. Update this package.json to use a subpath pattern like "./*".
✔ Compiling with Angular sources in Ivy partial compilation mode. ✖ Bundling to FESM2015
Invalid value for option "output.file" - when building multiple chunks, the "output.dir" option must be used, not "output.file". To inline dynamic imports, set the "inlineDynamicImports" option.
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