angular - Exclude a Specific file to older Typescript version

Question

I am using Angular 11 and i have couple of libraries that are not compiling in TSC 4.0 as those are made specific for older versions. (And I don't have source code for those)

Given this case, I am wondering what can I do force TSC to use older version for this library? Consider following package.json ... I have 3 libraries A, B, C. Typescript compiler complaining about few stuff that have been changed in Latest Typescript version, that was working earlier in 3.8+ ..

If I downgrade from "typescript": "4.0.5", to "typescript": "3.8", or "typescript": "3.9" Angular complains that it needs typescript version 4.0 and above....

"dependencies": {
    "@angular/common": "11.0.5",
    "@angular/compiler": "11.0.5",
    "@angular/core": "11.0.5",
     ... 
     "lib-A": "file:folder-A",
     "lib-B": "file:folder-B",
     "lib-C": "file:folder-C"
}

Any suggestions to tackle this? I don't have source code of any of libraries ... :(

Answer 1

等待大神答复