Class cannot be read from Sqlite3 database

Error: Class cannot be read from Sqlite3 database. Please check the type of field usersReviewList(java.util.ArrayList)

Hi, sugarORM can not read from the database fields stored in a custom object called UserReview in practice in my code I have an object called appWatched and for each object can have multiple objects UserReview which for convenience are saved in a list , when I try to read data stored in the database sugar fails to read the values ​​stored in the table USER_REVIEW , how do I fix ? an extract from the code of java objects :

public class AppWatched extends SugarRecord<AppWatched>{

private String appPackageName;
private String appName;
private String appLogoUrl;
private String vote;
private String numPeapleRating;
private String numStarsRatingFive;
private String numStarsRatingFour;
private String numStarsRatingThree;
private String numStarsRatingTwo;
private String numStarsRatingOne;
private List<UserReview> usersReviewList;

public AppWatched(){ }

}

public class UserReview extends SugarRecord<UserReview>{

private String userAvatarUrl;
private String userName;
private String currentRation;
private String reviewDate;
private String reviewTitle;
private String reviewBody;

public UserReview() {}

}

Used Version: compile ‘com.github.satyan:sugar:1.3’

[pratiksaboo]

Okay, it’s 2018 and it’s crazy how such an important thing is missing. I found this way to be quite helpful: Basically storing it as a string json https://stackoverflow.com/a/46543631/3520157

[pietronaccari]

ArrayList or other collections aren’t supported yet 😦

Only solution and then create a report 1 to n between my items , thanks