Hello everyone.

We have decided to phase out the Mixed Reality Forums over the next few months in favor of other ways to connect with us.

The first way we want to connect with you is our mixed reality developer program, which you can sign up for at https://aka.ms/IWantMR.

The plan between now and the beginning of May is to clean up old, unanswered questions that are no longer relevant. The forums will remain open and usable.

On May 1st we will be locking the forums to new posts and replies. They will remain available for another three months for the purposes of searching them, and then they will be closed altogether on August 1st.

So, where does that leave our awesome community to ask questions? Well, there are a few places we want to engage with you. For technical questions, please use Stack Overflow, and tag your questions using either hololens or windows-mixed-reality. If you want to join in discussions, please do so in the HoloDevelopers Slack, which you can join by going to https://aka.ms/holodevelopers. And always feel free to hit us up on Twitter @MxdRealityDev.

SharedHologram - Upload Failed Room not found

Hi, I am trying to follow the sharedhologram experience(Hologram 240), and I occasionally get an error that says "Upload failed Room not found", after uploading anchor. Sometimes, the application work smoothly, but if this error happens, I can't see any holograms. For the stability, is there any way to fix this issue?


  • me too. :s

  • Is this error in the editor?

    AR Developer

  • WaqcWaqc

    I'm not sure this question still bothering anyone. I recently worked on a project of sharing hologram and I am using unity and holoTool kit 4.3.0. When I meet this problem, I play the app on unity and let the computer to join first and create a room, then when the HoloLens join the session, it will automatically join the room and there will be no Room not found error.

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