Unable to create converter for class

Question

I am using retrofit in my app and Gson convertor for JSON. I would like to use database when there is not internet connection. I decided to use Sugar ORM. but I get an IllegalArgumentException.

java.lang.IllegalArgumentException: Unable to create converter for class

here is my object

public class User extends SugarRecord implements Parcelable {

    @SerializedName("id")
    @Expose
    private Integer id;
    @SerializedName("email")
    @Expose
    private String email;
    @SerializedName("name")
    @Expose
    private String name;
    @SerializedName("lastname")
    @Expose
    private String lastname;
    @SerializedName("properties")
    @Expose @Ignore
    private List<Object> properties = new ArrayList<>();
    @SerializedName("rights")
    @Expose @Ignore
    private String rights;
    @SerializedName("photo")
    @Expose
    private String photo;
    @SerializedName("favorites")
    @Expose @Ignore
    private List<PointsOnMap> favorites = new ArrayList<>();
    @SerializedName("token")
    @Expose
    private String token;

    public User() {
    }

    public User(String name, String lastname, String email, String photo, String token) {
        this.name = name;
        this.lastname = lastname;
        this.email = email;
        this.photo = photo;
        this.token = token;
    }
    //getters and setters

Where exactly do you get the error? – qantik Sep 04 '16 at 13:52 — qantik, Sep 04 '16 at 13:52
look the link: https://stackoverflow.com/a/42517143/703225 – qinmiao Aug 24 '17 at 10:01 — qinmiao, Aug 24 '17 at 10:01

score 3 · Accepted Answer · answered Dec 04 '18 at 21:43

3

Problem is you can't have a variable named id in your class when using Sugar since by default it uses its own internal ids. Try renaming to userId or something like that.

answered Dec 04 '18 at 21:43

fhomovc

301
3
15

score 1 · Answer 2 · answered Jan 09 '20 at 22:11

1

Just use transient statement before Integer type.

    @SerializedName("id")
    @Expose
    private transient Integer id;

Then, if you have getId and setId methods, should delete them.

And have fun!

answered Jan 09 '20 at 22:11

Arman Hosseini

63
14

Unable to create converter for class

2 Answers2

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