Power Designer Check Model hints role name uniqueness

The following problems were encountered when designing the Oom,check model with PD today:

The web also did not find a good way to check for a half-day to discover the cause of the error, the original PD allows two of classes to add multiple links, such as:

Because the entity diagram is too complex, coupled with its own negligence, accidentally drew a more, resulting in this error.

According to the tip, the first thought is to draw two of the same class, and then change the name, there is still this error, stating that the name is not the same, the subsequent test also proves that the software is not allowed to create two names of the same class or attribute. So when you encounter the problem of role name, look directly at the correlation.

Power Designer Check Model hints role name uniqueness