# Error running VMTK Development version (vmtkcenterlines)

**URL:** https://discourse.slicer.org/t/error-running-vmtk-development-version-vmtkcenterlines/28371
**Category:** VMTK
**Created:** [March 14, 2023, 11:40am UTC](https://discourse.slicer.org/t/error-running-vmtk-development-version-vmtkcenterlines/28371 "2023-03-14T11:40:22Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Lorenzo\_Civilla](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lorenzo_civilla/32/18705_2.png) [@Lorenzo\_Civilla](https://discourse.slicer.org/u/Lorenzo_Civilla)
#### Post date: [March 14, 2023, 11:40am UTC](https://discourse.slicer.org/t/error-running-vmtk-development-version-vmtkcenterlines/28371/1 "2023-03-14T11:40:23Z")

</div>

Dear all,

I installed VMTK Development version on a VirtualMachine running Ubuntu 22.04.2. There I installed the latest versions of the dependencies of Git, Pyhton3, CMake and g++. The problem I have occurs when I run vmtkcenterlines: I manage to pick the source points and proceed by pressing “q”, but then the window that opens is completely freezed and executes in loop the lines

```auto
while any == 0:
    self.InitializeSeeds()
    self.vmtkRenderer.Render()
    any = self.PickedSeedIds.GetNumberOfIds()

```

It looks like the target points are already considered as picked after the assignement of the source point. Could you help me with this issue?