The first step that you can take to begin to resolve this issue is to go into Project Settings->Packaging and remove the List of Maps to Include in Packaged Build. This is causing an issue because the file path is too long.
Also, you’ll need to go into your Vine mesh and disable Use MikkTSpace Tangent Space, as this is causing an error message to appear in the output log: “Invalid vertex normals found for mesh. Forcing recomputation of vertex normals for MikkTSpace. Fix mesh or disable “Use MikkTSpace Tangent Space” to avoid forced recomputation of normals.”
After this, you’ll need to go fix the deprecation warnings in BP_Spline_Mesh_Animated. It specifies in the blueprint which nodes you’ll need to use instead.
After doing these things, look into these error messages to attempt to diagnose why these files are not being found, and if there are references to these files still hanging around:
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:146][ 0]LogInit:Display: LogLinker:Warning: Can't find file '/Game/Architecture/SM_Floor_400x400'
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:147][ 0]LogInit:Display: LogUObjectGlobals:Warning: Failed to load '/Game/Architecture/SM_Floor_400x400': Can't find file '/Game/Architecture/SM_Floor_400x400'
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:147][ 0]LogInit:Display: LogUObjectGlobals:Warning: Failed to find object 'Object /Game/Architecture/SM_Floor_400x400.SM_Floor_400x400'
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:147][ 0]LogInit:Display: LogRedirectors:Warning: String Asset Reference '/Game/Architecture/SM_Floor_400x400.SM_Floor_400x400' was not found!
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:148][ 0]LogInit:Display: LogShaderCompilers:Warning: Failed to compile Material /Game/StarterContent/Props/Materials/M_StatueGlass.M_StatueGlass for platform PCD3D_SM4, Default Material will be used in game.
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:148][ 0]LogInit:Display: LogLinker:Warning: Can't find file '/Game/Developers/jordanwalker/RenderStyle/EnvTexTest/LP_Finger_6k'
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:148][ 0]LogInit:Display: LogUObjectGlobals:Warning: Failed to load '/Game/Developers/jordanwalker/RenderStyle/EnvTexTest/LP_Finger_6k': Can't find file '/Game/Developers/jordanwalker/RenderStyle/EnvTexTest/LP_Finger_6k'
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:149][ 0]LogInit:Display: LogUObjectGlobals:Warning: Failed to find object 'Object /Game/Developers/jordanwalker/RenderStyle/EnvTexTest/LP_Finger_6k.LP_Finger_6k'
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:149][ 0]LogInit:Display: LogRedirectors:Warning: String Asset Reference '/Game/Developers/jordanwalker/RenderStyle/EnvTexTest/LP_Finger_6k.LP_Finger_6k' was not found!
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:150][ 0]LogInit:Display: LogLinker:Warning: Can't find file '/Game/Environment/COG/COG_Buildings/Mesh/SM_WallArch_Support_Buttress'
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:150][ 0]LogInit:Display: LogUObjectGlobals:Warning: Failed to load '/Game/Environment/COG/COG_Buildings/Mesh/SM_WallArch_Support_Buttress': Can't find file '/Game/Environment/COG/COG_Buildings/Mesh/SM_WallArch_Support_B
MainFrameActions: Packaging (Windows (64-bit)): uttress'
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:151][ 0]LogInit:Display: LogUObjectGlobals:Warning: Failed to find object 'Object /Game/Environment/COG/COG_Buildings/Mesh/SM_WallArch_Support_Buttress.SM_WallArch_Support_Buttress'
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:152][ 0]LogInit:Display: LogRedirectors:Warning: String Asset Reference '/Game/Environment/COG/COG_Buildings/Mesh/SM_WallArch_Support_Buttress.SM_WallArch_Support_Buttress' was not found!
MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: [2016.05.20-15.43.57:152][ 0]LogInit:Display:
After looking into these errors, if you have questions related to this issue, please feel free to let me know.
Have a great day