List.create node return NULL

Lists-Logic
1

Hi All,

List.creat node return NULL . Any idea ?

List.Creat
List.Creat1452×875 136 KB

2

Unbenannt
Unbenannt921×532 54.1 KB

3

Looks like you need to close and rerun your graph.

4

i did that too many times

5

i will try to reinstall Dynamo

6

Which Revit Version you’re using? Make sure you have the latest Revit build version.

7

2021.1

8

list.creat somtimes read the data and sometimes not

9

21.1.0.108
20200708_1515(x64)
2021.1

10

01
01851×626 58 KB
:crazy_face:

11

i think the problem came from Revit becuse i tried it with different data it works but when i came back to the same data it wont

12

02
Revit bug, i tried to duplicate the floor plan and he gave me error .

thank you every body for help, we will always learning

13

Use 2021.1 2 2021.1.2 Hotfix

  • 21.1.20.44
  • 20201109_1530(x64)
  • 2021.1.2
14

thanx