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Решение AD проблемы Не удалось добавить член класса
Когда мы проектируем, иногда появляется сообщение об ошибке Failed to add class member при импорте платы; решение следующее:
Дизайн-классы в интерфейсе печатной платы;
Компонентные классы удаляют проблемные классы;
После повторного импорта ошибка устранена.
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Altium designer transfer to pcb issue
I designing a pcb with 14 sheets in hierarchical option. While transfering my components to the PCB doc I get an error sign in some net names without error messages! With that error I get «failed to add class member» error in all sheets and in all signal harnesses.
The second issue that I encountered is in Engineering Change Order when I import the objects and executing. After it, when trying to import the same objects again, without change anything to pcb, some of the objects appear again and still remain in Engineering Change Order, I don’t see the expected «no differences detected» message. This disturbs me and I’m afraid for PCB design.
My project, compiled successfully.
6 Answers 6
The messages should point to specific parts in your schematic. Click on the message and you’ll see more in the bottom of the pane. I think «failed to add class member» is usually about parts not having footprints assigned. Project->Component Links. is often the other place to resolve ECO issues having to do with reference designator problems.
I had the same problem where «failed to add class member» prevented the component from being placed on the PCB even though the footprint was properly defined. My work-around was to placed the component manually on the PCB (Home -> Place -> Component) and set the ref des to be the same as the schematic. I then went back to the schematic and updated (Home -> Project -> Update PCB Document) and the error was gone and the netlist updated properly.
Add the library path to the pcb file then the error goes away.
Go into your SCH Library and add a footprint to the part. Recompile the library. Go to your SchDoc and Tools>Updated From Libraries or delete and add the new component back to the schematic and annotate. Go to your PcbDoc Design>Import Changes From
I usually have this problem if I create the part schematic before the footprint and forget to go back to add the footprint before compiling.
It happened to me a few times and in Altium 18 it seemed to be able to manage itself somewhat smarter — I mean the class errors were less persistent than in Altium 19 to me. Anyways, this was my ECO: 
Initially I had 3 sets of these 3 errors in both Add Components (Failed to find footprint or so), Add Component Class Members as well as in Add pins to nets sections.
Unfortunately I could not find Project->Component Links in my version 19, but applying Tools -> Update From Libraries and manually reassigning PCB Library paths for all footprints in the Tool -> Footprint Manager only cleared the Add Components errors section.
Indeed, like Devin says, manually placing the component on the PCB and editing its Designator to match the part on Schematic seems to take care of the Add Component Class Members errors. As you can see manually placing component J3 fixed the first error on my list (J3) and 2 errors in Add Pins To Nets section relating to this part as well. This is just a workaround, so would be keen to hear a more elegant way of debugging the class members.
And here is the final run of the ECO > Validate Changes showing a happy sync: 
Altium's Inability to Include Class Member
After placing the stm32f407vg microcontroller and a single resistor, I encountered an error, which is shown in the picture provided. The error message states that there was a failure to add the class and an unknown pin error. I hope this information assists you in pinpointing the problem. If you still experience errors, feel free to ask a new question that specifically addresses the error.
Doubt in altuim
After compiling the project, I encountered numerous warnings but no errors. Will these warnings have any impact on my work?
Upon validating changes in the engineering change order, I encounter an error message stating "failed to add class member." However, upon further inspection, I discover that all the components are present on the PCB sheet.
Solution 1:
The reason for receiving numerous "Wire has multiple net names" warnings is due to the presence of multiple nets passing through sheet entry ports, which may be connected to differently named nets on other sheets.
In Altium, net naming can be configured in the options section ( project option ). To find it, simply search for "Allow ports to name nets". It is important to understand the different net options available and their impact on your design. You should choose the most suitable set of options for your net structure, which can include Flat, Hierarchical, Global, and Nets named by ports. Keep in mind that your selections will determine the restrictions on net naming and the generation of Errors or Warnings for unexpected connections.
As a typical practice, I usually deactivate the option of "Allow ports to name nets" and instead opt to manually assign net labels for naming nets, which seems to be your preferred approach as well.
The warnings for not adding a class member can occur due to various reasons, often related to the settings in the project options (class generation and comparator sections). This warning signifies that the update process failed to include a class generated by the schematic into a class in the PCB. The significance of this warning depends on your intentions for the PCB.
Prioritize resolving the internet problems initially, and subsequently assess if the class warning persists. Address the class issue afterwards.
The update process is not halted by warnings; instead, they serve as indications that there might be suboptimal aspects in the options, setup, or design, and it is advisable to investigate the reasons behind them.
In the Options-> Connection matrix section, you have the ability to specify the severity level for a particular issue, whether it should be labeled as a Warning, Error, Fatal Error, or simply ignored.
To summarize, there is a multitude of things to take into consideration and adjust. This is an inevitable outcome when attempting to create adaptable software for the broader professional community.
Solution 2:
The origin of warnings becomes significant when you are unaware of their source, which is contingent upon your schematic, layout, and rules. Without additional information, our ability to assist you with this matter is limited.
Regarding the validation issue, Altium has a "feature" where if you validate an import, it attempts to validate the circuit in the layout. However, this may not include all the necessary components if you have made changes to the schematic since your last import. Consequently, a validation will fail, but if you perform an import, it will execute successfully. Make sure to review the errors after the import process is complete.
Altium designer failed to add class member problem
the first is to delete the PCB file and create a new one, which is the most unacceptable.
the second way is to delete the CLASS in question, please refer to this article. http://blog.sina.com.cn/s/blog_6b79ac7d0101furd.html
there is another one that I just encountered this time. The problem is that although the schematic diagram encapsulation is drawn in the schematic library, there is no encapsulation when the actual schematic diagram is opened.
the solution is as follows:
1, 