Godot: AnimationPlayer.GetCurrent* methods fail to run with "Condition ' !playback.current.from ' is true."

[mysticfall]

Godot version:
master / 68f277477b5a5f3003405e36c6b6853720cb91de

OS/device including version:
_Manjaro Linux 17.1_

Issue description:

While playing an animation with AnimationPlayer, invoking any of the GetCurrent* methods fail with the following message:

ERROR: get_current_animation_position: Condition ' !playback.current.from ' is true. returned: 0
   At: scene/animation/animation_player.cpp:1068.

[neikeq]

Is this C# specific issue, or does it happen with GDScript as well?

[mysticfall]

I can only say that it happens with C# for now, as I haven't used GDScript before.

I might be able to create a GDScript project sometime later, but I wish someone who's already working on a GDScript project could confirm this one.

[EstevanBR]

this happens in GDScript as well.

[Kiotenhariyo]

Still happening in GDScript v3.0.5

tried the following pointless and redundant code in failed effort to prevent error
am simply trying to reset all animations within a grid of dynamically instanced button nodes, each with a child animationplayer node, everything works just cannot rid of the error code

func resetBTN_animations():
var targetBTNs = _chartGrid.get_children()

for i in targetBTNs.size():
    if targetBTNs[i].get_node("anim").current_animation_position > 0:
        targetBTNs[i].get_node("anim").seek(0,true)
        targetBTNs[i].get_node("anim").stop()

[Piet-G]

I failed to reproduce this as of 8704b77
Calling get_current_animation_length() while the animation is running doesn't show an error.

[reduz]

I will close this, because I don't see how it could be a bug. Code can't be clearer also:

    ERR_FAIL_COND_V(!playback.current.from, 0);
    return playback.current.from->animation->get_length();

[golddotasksquestions]

I also get this error while the script seems to be working perfectly fine (returns the current animation position in seconds):
Godot 3.0.6 This is the line producing the error:
var current_ani_pos = $AnimationPlayer.current_animation_position

0:00:00:0745 - Condition ' !playback.current.from ' is true. returned: 0

Type:Error
Description:
Time: 0:00:00:0745
C Error: Condition ' !playback.current.from ' is true. returned: 0
C Source: scene\animation\animation_player.cpp:1069
C Function: AnimationPlayer::get_current_animation_position

Should I just ignore it?

[christoffersch]

Also getting this error with C# in 3.1 stable.
While the error does appear, everything does work perfectly - just a bit annoying to look at in the output menu :(

[phaitonican]

Getting this with GDScript (red error in console) when using seek(0, true) or anything with seek too, but seek still works

[fakedeltatime]

I'm getting this with GDScript while using current_animation_position in an if statement, but I don't see a reason for the error as everything seems to work.

[mrimvo]

I found a way to get around this. Maybe someone finds it useful in the future:

if current_animation!="":
    print(current_animation_position)
    seek(0)

It won't produce any errors. The reason is obviously: when there was never an animation played, you can't access its position or seek through it.

[jakefriend-dev]

Very useful @mrimvo - thank you. The idea that it happens when an animation was never played makes sense to me as I could sometimes replicate it and sometimes not. Would be great if this could be re-opened and addressed though.

[akien-mga]

Well that's what the error message says since the beginning, but @reduz failed to make that more explicit to users here...

Let's reopen and improve the error message.