Unity freezes when creating a new GestureRecognizer (5.5 and up)

Unity Engine
, ,
1

Recently I reinstalled windows 10 on my computer. After also reinstalling Unity I noticed my application freezing whenever I hit play.

After some debugging I found out that creating a new GestureRecognizer was making Unity freeze. The play icon grays out and cpu usage drops to 0.0%. Unity will no longer respond to anything I do and I’m forced to kill it via task manager.

Here’s the code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.VR.WSA.Input;

public class gest : MonoBehaviour
{
    GestureRecognizer g;

    // Use this for initialization
    void Start () {

        g = new GestureRecognizer(); 

    }
   
    // Update is called once per frame
    void Update () {
       
    }
}

Things I’ve tried to fix it from freezing:

  • Reboot Unity
  • Tried different versions of Unity
  • Rebooted windows
  • Adding .dll files from data folder of a working pc (same project, same installer, same everything and it doesn’t freeze there)
  • Reimporting all assets…

It seems like it’s not Unity related but any help would be greatly appreciated.

2

bump, need an answer for work…

3

bump

4

I’m having the exact same issue. For me, disabling related code for the editor and testing on the device is possible, but still really annoying. So far I tried Unity 5.5.3p2 and 5.6, neither worked. Unity log also has nothing related.

Moreover in HoloToolkit-Unity repository, this problem first mentioned in January and didn’t have a solution yet, so it doesn’t seem promising…

5

For the future reference; having a clean re-install (instead of build-in “reset my PC” feature) solved the problem for me.

6

Installing Windows 10 SDK solved the problem for me. It would be nice if Unity detects the SDK is missing.

7

Thank you @KarlosZafra , I think you partially helped me out of my problem.

I struggled with this problem for two days and I finally got it working.

  • Installed all versions of the Windows 10 SDK (I don’t believe its necesary to install them all but I became desperate)
  • I figured out I did not have Windows Developer settings enabled
  • My two previous steps didn’t work until I restarted my computer

An issue were created on Github which I contributed to:
https://github.com/Microsoft/HoloToolkit-Unity/issues/710

8

Enabling Developer settings in windows fixed the issue. Thread may now be closed, thanks @Freaking-Pingo !

9

Does anyone know if this has been reported to Unity as a bug? Enabling developer mode fixed this for me, but it would be nice for Unity to present instructions to the user instead of hanging.

10

I created a minimum repro case and reported this via the Unity Bug Reporter.

11

And Unity created an issue for it: https://issuetracker.unity3d.com/issues/the-editor-will-freeze-on-play-mode-enter-if-developer-mode-is-off-in-windows-and-a-gesture-recognizer-is-used