# Trace Not Working PV 5.10.0-RC1
**URL:** https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656
**Category:** ParaView Support
**Created:** [December 19, 2021, 3:31pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656 "2021-12-19T15:31:57Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 19, 2021, 3:31pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/1 "2021-12-19T15:31:57Z")
I get this error message when I attempt to start a trace. I am a relatively new PV user. I am using PV 5.10.0-RC1.
ERROR: In C:\glr\builds\paraview\paraview-ci\build\superbuild\paraview\src\Remoting\ServerManager\vtkSMTrace.cxx, line 77
vtkSMTrace (0000017FA8DCB250): Failed to import paraview.smtrace module.
Generic Warning: In C:\glr\builds\paraview\paraview-ci\build\superbuild\paraview\src\Remoting\ServerManager\vtkSMTrace.cxx, line 164
Trace not started since required Python modules are missing.
---
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 19, 2021, 5:11pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/2 "2021-12-19T17:11:25Z")
UPDATE: I get the same error message after installing/running PV 5.10.0-RC2. I added “C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64” to my environment path (Windows 10 Enterprise 20H2) and that did not fix anything either. Please advise.
---
### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [December 20, 2021, 2:40am UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/3 "2021-12-20T02:40:51Z")
I am not able to reproduce with an installation of ParaView 5.10.0-RC2. Select View → Python Shell and run
```auto
import sys
sys.path
```
What does that print? On my 5.10.0-RC2 installation it prints
```auto
['C:\\Program Files\\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\\bin\\Lib\\site-packages', 'C:\\Program Files\\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\\bin\\python39.zip', 'C:\\Program Files\\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\\bin\\DLLs', 'C:\\Program Files\\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\\bin\\lib', 'C:\\Program Files\\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\\bin', 'C:\\Program Files\\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\\bin\\lib\\site-packages', 'C:\\Program Files\\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\\bin\\lib\\site-packages\\win32', 'C:\\Program Files\\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\\bin\\lib\\site-packages\\win32\\lib', 'C:\\Program Files\\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\\bin\\lib\\site-packages\\Pythonwin']
```
---
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 20, 2021, 2:49am UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/4 "2021-12-20T02:49:58Z")
[‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\Lib\site-packages’, ‘C:\Program Files\DHI\2022\FEFLOW 7.5\python’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\python39.zip’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\DLLs’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\lib’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\lib\site-packages’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\lib\site-packages\win32’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\lib\site-packages\win32\lib’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\lib\site-packages\Pythonwin’]
---
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 20, 2021, 2:51am UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/5 "2021-12-20T02:51:13Z")
By the way, the instant I first click into the Python Shell field, I get an AssertionError: Traceback (most recent call last):
File “”, line 1, in
File “C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\Lib\site-packages\paraview\simple.py”, line 2908, in
\_add\_functions(globals())
File “C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\Lib\site-packages\paraview\simple.py”, line 2742, in \_add\_functions
for key in dir(m):
File “C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\Lib\site-packages\paraview\servermanager.py”, line 2703, in **dir**
s.add(self.\_getPyName(xml=item[“xml”]))
File “C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\Lib\site-packages\paraview\servermanager.py”, line 2681, in \_getPyName
assert name
AssertionError
---
### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [December 20, 2021, 2:56am UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/6 "2021-12-20T02:56:11Z")
My guess is that the path `C:\Program Files\DHI\2022\FEFLOW 7.5\python’` is causing the issue. I’m guessing that is set in the PYTHONPATH environment variable on your system. If you remove that, does ParaView tracing work and the AssertionError when you launch the shell go away?
---
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 20, 2021, 3:02am UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/7 "2021-12-20T03:02:59Z")
I removed it and launched a fresh instance of PV. Unfortunately I still get the same errors. I did not reboot my machine after removing the PYTHONPATH entry. Do I need to reboot before re-trying?
---
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 20, 2021, 3:04am UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/8 "2021-12-20T03:04:18Z")
Here’s what returns now with the sys.path: [‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\Lib\site-packages’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\python39.zip’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\DLLs’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\lib’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\lib\site-packages’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\lib\site-packages\win32’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\lib\site-packages\win32\lib’, ‘C:\Program Files\ParaView 5.10.0-RC2-Windows-Python3.9-msvc2017-AMD64\bin\lib\site-packages\Pythonwin’]
> > >
---
### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [December 20, 2021, 3:20am UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/9 "2021-12-20T03:20:46Z")
Your `sys.path` looks okay. Do you have anything related to another Python installation on your PATH environment variable?
---
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 20, 2021, 4:00am UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/10 "2021-12-20T04:00:26Z")
---
### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [December 20, 2021, 4:59pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/11 "2021-12-20T16:59:01Z")
I suspect having the Python38 paths in your PATH is causing issues.
---
### Author:  [@wascott](https://discourse.paraview.org/u/wascott)
#### Post date: [December 20, 2021, 5:00pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/12 "2021-12-20T17:00:01Z")
Just thinking out loud, I would start by removing ALL of the paths (that are not system related), and then slowly add them back? If removing the paths works with ParaView, it isn’t a ParaView issue. If ParaView doesn’t work, you can stop fretting about the path…
---
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 20, 2021, 6:04pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/13 "2021-12-20T18:04:37Z")
It does not appear to be related to my PATH statements, but it does seem to be machine-dependent. I am not able to recreate the problem on another machine. Problem is…I need to get it to work on THIS machine. Any other ideas? I really appreciate your help.
---
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 20, 2021, 6:30pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/14 "2021-12-20T18:30:34Z")
Are there known conflicts with other software packages?
---
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 20, 2021, 6:47pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/15 "2021-12-20T18:47:08Z")
UPDATE: I uninstalled 5.10 and resorted back to 5.9.1 and I do not get any error messages. I have no idea why 5.10 is problematic, but hopefully this information provides some possible leads for troubleshooting.
---
### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [December 20, 2021, 6:56pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/16 "2021-12-20T18:56:57Z")
@ben.boeckel thoughts? 5.10 should find ParaView’s Python before anything on the PATH, shouldn’t it?
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 27, 2021, 10:52am UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/17 "2021-12-27T10:52:45Z")
FYI I’ve seen that and fixed it by removing ParaView settings.
---
### Author:  [@natetron](https://discourse.paraview.org/u/natetron)
#### Post date: [December 27, 2021, 3:22pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/18 "2021-12-27T15:22:01Z")
Removing PV settings? Sorry, I do not understand. Which settings?
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 27, 2021, 3:23pm UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/19 "2021-12-27T15:23:46Z")
Read this: [11. Customizing ParaView — ParaView Documentation 5.10.0 documentation](https://docs.paraview.org/en/latest/ReferenceManual/customizingParaView.html#configuring-default-settings-with-json)
Remove the files in:
`%APPDATA%/ParaView/`
---
### Author:  [@gosia](https://discourse.paraview.org/u/gosia)
#### Post date: [May 10, 2022, 5:59am UTC](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656/20 "2022-05-10T05:59:46Z")
Hi,
I have the same issue, but nothing suggested here works:
here’s my setup:
- i build paraview from git repo (tag v5.9.1)
- i use a “global” python3.8 on my laptop (all paths to other pythons are deleted from my ~.bashrc, this is ubuntu 20.4), so that in paraview’s console i get:
```auto
>>>
Python 3.8.10 (default, Mar 15 2022, 12:22:08)
[GCC 9.4.0] on linux
>>> from paraview.simple import *
>>> import sys
>>> sys.path
['/usr/local/lib/x86_64-linux-gnu/python3.8/site-packages', '/home/gosia', '/usr/local/lib/python3.8/site-packages', '/usr/lib/python38.zip', '/usr/lib/python3.8', '/usr/lib/python3.8/lib-dynload', '/home/gosia/.local/lib/python3.8/site-packages', '/usr/local/lib/python3.8/dist-packages', '/usr/lib/python3/dist-packages']
```
- at the same time i get the following error messages in the terminal, from which i start paraview:
```auto
raceback (most recent call last):
File "/usr/lib/python3.8/code.py", line 90, in runcode
exec(code, self.locals)
File "", line 1, in
File "/usr/local/lib/x86_64-linux-gnu/python3.8/site-packages/paraview/simple.py", line 41, in
from paraview import servermanager
File "/usr/local/lib/x86_64-linux-gnu/python3.8/site-packages/paraview/servermanager.py", line 3401, in
__initialize()
File "/usr/local/lib/x86_64-linux-gnu/python3.8/site-packages/paraview/servermanager.py", line 3392, in __initialize
c = Connection(iter.GetCurrentSessionId(), iter.GetCurrentSession())
File "/usr/local/lib/x86_64-linux-gnu/python3.8/site-packages/paraview/servermanager.py", line 2067, in __init__
_createModules(self.Modules)
File "/usr/local/lib/x86_64-linux-gnu/python3.8/site-packages/paraview/servermanager.py", line 2728, in _createModules
m.filters = createModule('filters')
File "/usr/local/lib/x86_64-linux-gnu/python3.8/site-packages/paraview/servermanager.py", line 2842, in createModule
cobj = _createClass(groupName, proxyName, apxm=pxm)
File "/usr/local/lib/x86_64-linux-gnu/python3.8/site-packages/paraview/servermanager.py", line 2799, in _createClass
cdict.update(_createClassProperties(proto))
File "/usr/local/lib/x86_64-linux-gnu/python3.8/site-packages/paraview/servermanager.py", line 2761, in _createClassProperties
if (prop.GetInformationOnly() and propName != "TimestepValues" \
AttributeError: 'NoneType' object has no attribute 'GetInformationOnly'
```
- there are error messages already present when starting paraview:
```auto
gosia@nela:~$ paraview
( 0.944s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.036s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3b88d480): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.037s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.037s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3b88d480): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.037s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.037s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3b88d480): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.037s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.037s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3b88d480): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.038s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=SphereFromPoint were found.
( 1.038s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3b888430): Could not create a proxy of group: filters type: SphereFromPoint
( 1.043s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.043s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3ba04db0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.043s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.043s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3ba04db0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.043s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.043s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3ba04db0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.043s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.044s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3ba04db0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.106s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.107s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3abfaff0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.107s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.107s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3abfaff0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.107s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.107s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3abfaff0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.107s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.107s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3abfaff0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.108s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=SphereFromPoint were found.
( 1.108s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3b5711d0): Could not create a proxy of group: filters type: SphereFromPoint
( 1.110s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.111s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3b4d6eb0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.111s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.111s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3b4d6eb0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.111s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.111s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3b4d6eb0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 1.111s) [paraview]vtkSIProxyDefinitionMan:525 ERR| vtkSIProxyDefinitionManager (0x558f38b9f4f0): No proxy that matches: group=filters and proxy=ScalarFieldNormalizer were found.
( 1.111s) [paraview]vtkSMDeserializerXML.cx:57 ERR| vtkSMCompoundProxyDefinitionLoader (0x558f3b4d6eb0): Could not create a proxy of group: filters type: ScalarFieldNormalizer
( 8.422s) [paraview] vtkSMProxy.cxx:268 WARN| vtkSMCompoundSourceProxy (0x558f3b5acb60): Subproxy required for the exposed property is missing.No subproxy with name : TTKSphereFromPoint1
```
what can i do to solve this issue?
thank you for any suggestions!
[Next page](https://discourse.paraview.org/t/trace-not-working-pv-5-10-0-rc1/8656.md?page=2)