I'm using Sknil myself for my Modding and Skinning purposes.
No, space isn't, but sometimes a flick in the number of Points.
But the Error can have different causes, hard to say by default.
those Errors , from what I found are glitches in hier.hims or readable Mesh.
Happens in our Best Mods, is a cosmetic issue.
this can render such Error (just a showcase of examles that throws these Errors):
Attaching 1 0 0 0 1 0 0 0 1 0 0 0 3.8
surplus point
[CF_D1]
Mesh CF_D1
Parent CF_SHANGRILA
Mesh naming error, Mesh not present
I tried 3 Days finding such Error was present not in him, but in the indicating Mesh:
[Vertices_Frame0]
0.65302 -0.0110117 0.0095568 0.00833996 0.999965 -1.87307e-006 Bla-Bla
unnecessary Bla-Bla in a editable Mesh txt
But there are other issues not traceable that can throw Errors:
Texture Mat troubles can throw and indicate to 3-D trouble, Mapping?
First check him line, second, check the mesh it is referring too.
By simple means follow the Error Message, note the Line, open in Notepad++ so you can trace the Line, check the Mesh
has no glitch if readable.mesh, textures and mat troubles cured, hier.him free of glitches.
With that above fixed, you can turn them visible, if you still get the Error, it's the present work you're doing that renders the
mesh or him unreadable in Sknil.exe.
If Sknil fails, and you can afford, try Meshdump or Stainless Tool.
But basicly that Error means to get it fixed in Sknil to get it to work.
A timeconsuming task. For skinning, Sknil is unbeatable, no doubt.
I always do use Matrix Params and counter check, if still getting Errors, maybe it's an Exporter value Issue, that Sknil can't read,
some of these fancy values, dunno, I'm no Guru