#Hololens – #Unity3D and error CS0227: Unsafe code requires the `unsafe’ command line option to be specified

Hello!

I was working and deleting some Assets in one Hololens Unity3D project, when I came across the following compilation error:

Assets/HoloToolkit/Sharing/Scripts/SDK/AnchorDownloadRequest.cs(58,22): error CS0227: Unsafe code requires the `unsafe’ command line option to be specified

If you are .Net developer you understand the context for this error, the message is asking us to enable a compilation flag to compile unsafe code.

My first task was a quick search, and I found the way to do this in Unity is following these steps

• Create a text file named “smcs.rsp”
• Edit the file and add the text “-unsafe”
• Copy the file to the Assets folder in our Unity3D project

1 minute later I was able to build the project without problems. And I went back to see the HoloToolkitUnity contents, and I realize the file was inside it and that was one which I deleted in my “cleaning” process

Lesson learned!

Greetings @ Toronto

El Bruno

References

• GitHub, HoloToolkit
• GitHub, HoloToolkit Unity
• Unity, How to enable an use unsafe pointers
• El Bruno, HoloToolKit, amazing set of assets to create Hololens Apps
• El Bruno, Holotoolkit, Scenes automatic configuration, cool Build options and more