EntityGroups problem

Hello everyone,

I do experience a problem in my new Tiny project: If I double-click on one of my entityGroups in the project window, it does not open fully in the hierarchy window: only the children are there, at the root. If I "play" it, it runs well as it used to (before I had several crashes, I had to admit) but then if I change something in the hierarchy window, like deleting one of the entities that were in this group (and that are now at the root) it just throws an error:

Build step 'Validating Project' failed with exception: System.NullReferenceException: Object reference not set to an instance of an object
at Unity.Tiny.TinyEntityGroup.Visit (Unity.Tiny.TinyProject+Visitor visitor) [0x0003a] in C:\mesProjetsUnity\VoodooMascareignes\Library\PackageCache\com.unity.tiny@0.14.5-preview\Runtime\Runtime\Data\TinyEntityGroupVisitor.cs:16
at Unity.Tiny.TinyModule.Visit (Unity.Tiny.TinyProject+Visitor visitor) [0x0019d] in C:\mesProjetsUnity\VoodooMascareignes\Library\PackageCache\com.unity.tiny@0.14.5-preview\Runtime\Runtime\Core\TinyModuleVisitor.cs:50
at Unity.Tiny.TinyProject.Visit (Unity.Tiny.TinyProject+Visitor visitor) [0x00048] in C:\mesProjetsUnity\VoodooMascareignes\Library\PackageCache\com.unity.tiny@0.14.5-preview\Runtime\Runtime\Core\TinyProjectVisitor.cs:30
at Unity.Tiny.TinyProjectValidation.Validate (Unity.Tiny.TinyProject project) [0x00007] in C:\mesProjetsUnity\VoodooMascareignes\Library\PackageCache\com.unity.tiny@0.14.5-preview\Editor\Export\TinyProjectValidation.cs:12
at Unity.Tiny.BuildStepValidateProject.Run (Unity.Tiny.TinyBuildContext context) [0x00000] in C:\mesProjetsUnity\VoodooMascareignes\Library\PackageCache\com.unity.tiny@0.14.5-preview\Editor\Export\TinyBuildPipeline.cs:357
at Unity.Tiny.TinyBuildPipeline.RunBuildSteps (Unity.Tiny.TinyEditorUtility+ProgressBarScope progress, Unity.Tiny.TinyBuildContext context) [0x00060] in C:\mesProjetsUnity\VoodooMascareignes\Library\PackageCache\com.unity.tiny@0.14.5-preview\Editor\Export\TinyBuildPipeline.cs:584
UnityEngine.Debug:LogError(Object)
Unity.Tiny.TinyBuildPipeline:RunBuildSteps(ProgressBarScope, TinyBuildContext) (at Library/PackageCache/com.unity.tiny@0.14.5-preview/Editor/Export/TinyBuildPipeline.cs:593)
Unity.Tiny.TinyBuildPipeline:Build(TinyBuildOptions) (at Library/PackageCache/com.unity.tiny@0.14.5-preview/Editor/Export/TinyBuildPipeline.cs:533)
Unity.Tiny.TinyBuildPipeline:BuildAndLaunch() (at Library/PackageCache/com.unity.tiny@0.14.5-preview/Editor/Export/TinyBuildPipeline.cs:411)
Unity.Tiny.ExportOnPlay:HandlePlayStateChanged(PlayModeStateChange) (at Library/PackageCache/com.unity.tiny@0.14.5-preview/Editor/Utility/ExportOnPlay.cs:30)
UnityEngine.GUIUtilityrocessEvent(Int32, IntPtr)

Do you guys have experienced it? I don't know what to do except creating a new project and trying to migrate the scripts and building again the components and such
I tried to delete the folders and meta files but to no avail...

Any advice would be great
Cheers,
Theirry

 

Well I just started from scratch again... (And i wont forget to save my project every night!)

 

I don't know this error or how to fix it, but a good idea for you to incorporate into your workflow to save yourself from having to save your project every night would be to use Git.

 

Yes this is what I just did. Now I have it on my git.