With the latest versions of Unity and Doodle Studio, I get an error when trying to convert any animation file into a sprite! It seems like it's saying it cannot find the png file it's supposed to be creating? It also looks like it's trying to add an extra "Assets" folder to the file path. Here's the entire error I get:
DirectoryNotFoundException: Could not find a part of the path "C:\Users\sabrow\Desktop\Unity Projects\Untitled 3D Exploration Game\Assets\Assets\Textures\Drawn\HandDoodle.png".
System.IO.FileStream..ctor (System.String path, System.IO.FileMode mode, System.IO.FileAccess access, System.IO.FileShare share, System.Int32 bufferSize, System.Boolean anonymous, System.IO.FileOptions options) (at <ac823e2bb42b41bda67924a45a0173c3>:0)
System.IO.FileStream..ctor (System.String path, System.IO.FileMode mode, System.IO.FileAccess access, System.IO.FileShare share, System.Int32 bufferSize) (at <ac823e2bb42b41bda67924a45a0173c3>:0)
(wrapper remoting-invoke-with-check) System.IO.FileStream..ctor(string,System.IO.FileMode,System.IO.FileAccess,System.IO.FileShare,int)
System.IO.File.Create (System.String path, System.Int32 bufferSize) (at <ac823e2bb42b41bda67924a45a0173c3>:0)
System.IO.File.Create (System.String path) (at <ac823e2bb42b41bda67924a45a0173c3>:0)
System.IO.File.WriteAllBytes (System.String path, System.Byte[] bytes) (at <ac823e2bb42b41bda67924a45a0173c3>:0)
DoodleStudio95.DoodleAnimationFileUtils.SaveAsSpritesheet (DoodleStudio95.DoodleAnimationFile file) (at <be8b54176b2748c9b5e2225a34c829b5>:0)
UnityEngine.Debug:LogException(Exception)
DoodleStudio95.DoodleAnimationFileUtils:SaveAsSpritesheet(DoodleAnimationFile)
DoodleStudio95.<OnInspectorGUI>c__AnonStorey0:<>m__4()
UnityEditor.GenericMenu:CatchMenu(Object, String[], Int32)