Objectbox-java: List<String> error: Relation target class 'String' defined in class could not be found

[xyb789]

e: 错误: [ObjectBox] Relation target class 'String' defined in class 'ResultBean' could not be found (is it an @Entity?)
:app:kaptAliDebugKotlin FAILED

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:kaptAliDebugKotlin'.

  Compilation error. See log for more details

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 1s

[greenrobot-team]

If I understand this correctly: you can only have relations to other @Entity classes.
https://docs.objectbox.io/relations

// WORKS
@Entity
public class Order {
    @Id public long id;
    public ToOne<Customer> customer;
}
@Entity
public class Customer {
    @Id public long id;
}

// DOES NOT WORK
@Entity
public class Order {
    @Id public long id;
    public ToOne<String> customer;
}

-Uwe

[xyb789]

原有bean 是这样 如何变成object——box 所需格式 转换器 该如何写

[greenrobot-team]

ObjectBox does not support List<String>. It assumes you mean ToMany<String>.

You need to define a converter for List<String>.

@Convert(converter = StringListConverter::class.java, dbType = String::class.java)
var deadlineSelect: List<String>? = null

https://docs.objectbox.io/advanced/custom-types

-Uwe

[xyb789]

谢谢了 ， object-box 如何去除重复数据呢
Translation: Thank you, how does object-box remove duplicate data?

[greenrobot-team]

I'm not sure what you mean by that. Can you given an example?
-Uwe

[greenrobot-team]

Closing this issue due to inactivity. :zzz: Feel free to re-open with more details or submit a new issue.