Questions
Q:

library (ng-pick-datetime) which declares OwlDateTimeModule has not been processed correctly by ngcc

I try to install  OwlDateTimeModule   but when i import library, i got this error,

Build at: 2022-07-29T03:35:54.667Z - Hash: 7858d6c61328bcf4 - Time: 782ms
    1 export declare class OwlDateTimeModule {
                           ~~~~~~~~~~~~~~~~~
    This likely means that the library (ng-pick-datetime) which declares OwlDateTimeModule has not been processed 
correctly by ngcc, or is not compatible with Angular Ivy. Check if a newer version of the library is available,
 and update if so. Also consider checking with the library's authors to see if the library is expected to be compatible with Ivy.