'NoneType' object has no attribute 'id'

[pgaire]

I am trying to do an eigenanalysis of a building, when I run the analysis, I get the 'NoneType' object has no attribute 'id' error. Can anyone suggest me a way that I can solve this issue?

Thank you.

[STKO Team]

If you look at the last line of the traceback, it is trying to get the "id" attribute from the "phys_prop" object, which is "NoneType". In python it means it is a null object.

What happens is that at some edge with a forceBeamColumn element property, you don't have any physical property

[pgaire]

Works now. Thank you

[STKO Team]

you're welcome

[DaHuang]

If you look at the last line of the traceback, it is trying to get the "id" attribute from the "phys_prop" object, which is "NoneType". In python it means it is a null object.

What happens is that at some edge with a forceBeamColumn element property, you don't have any physical property

Hi STKO team, I have similar issue, how do you know which element does not have physical property? I have checked many times.

[M Ilyas]

Hi I have the same problem. Kindly advise...

[STKO Team]

You have to look at the last line of the traceback of the error.
It will tell you what element is missing a physical property

[DaHuang]

You have to look at the last line of the traceback of the error.
It will tell you what element is missing a physical property

Dear SKTO team, the last line of the traceback of the error shows lines in the python file, not the element number? I attached my traceback, It looks like something is wrong with the elastic-beam-column members, but I even deleted them and assigned properties again, and still does not work and the traceback is the same. thoughts?

Thanks!

[STKO Team]

exactly, it is saying that at least one edge with the elasticBeamColumn element element property does not have any physical property.

namePh = phys_prop.XObject.Xnamespace
NoneType (in this case "phys_prop") does not have the XObject attribute. In fact it is None, which in python means "Nothing", i.e. no physical property assigned.

[malcomjarr]

AttributeError means that there was an Error that had to do with an Attribute request. In general, when you write x.y, y is the purported attribute of x. NoneType means that instead of an instance of whatever Class or Object you think you're working with, you've actually got None. That usually means that an assignment or function call up failed or returned an unexpected result.

Code: Select all

mylist = mylist.sort()

The sort() method of a Python list sorts the list in-place, that is, mylist is modified. But the actual return value of the method is None and not the list sorted. So you've just assigned None to mylist. If you next try to do, say, mylist.append(1) Python will give you this error.