Could not find a declaration file for module 'num2persian'.

[aliafzali-b]

the types of this module doesn't declared
so we can't use this package in our type-script projects

[mahmoud-eskandari]

How did you imported this library into the codebase?

[emadcheshmazar]

the types of this module doesn't declared so we can't use this package in our type-script projects

create type file (.d.ts) like num2persion.d.ts in types or src/types directory and place this declaration in it:
declare module 'num2persian';

now TypeScript should recognize the module 'num2persian' and the warning should disappear