@starry-abyss Ah thanks, I remembered that I initially made a txt and manually changed its extension as png and then edited it with mspaint and saved again.Now I use "Save as..." to replace this sprite and it's solved!

But as for the phenomena, is it an unexpected issue?

@gamedevbynight Thanks though it doesn't work actually.

I attempted to add a sprite into my state:

package;
import flixel.FlxSprite;
import flixel.FlxState;

class PlayState extends FlxState
{
    override public function create():Void
    {
        var spr:FlxSprite = new FlxSprite();
        spr.loadGraphic(AssetPaths.testSprite__png);
        add(spr);
        super.create();
    }
    override public function update(elapsed:Float):Void
    {
        super.update(elapsed);
    }
}

And this is my testSprite.png:(testSprite.png was created by mspaint and saved as a PNG.)

But when I was running my project, I saw nothing on the screen. So I traced my spr.graphic:

PlayState.hx:16: { assetsKey => assets/images/testSprite.png, width => 0, _useCount => 1, frameCollectionTypes => [], frameCollections => { root => { left => null, right => null, _height => 1, key => IMAGE, value => [(frames: [(name: null)] | type: IMAGE)] } }, unique => false, _imageFrame => (frames: [(name: null)] | type: IMAGE), _destroyOnNoUse => true, bitmap => { __handle => null, __transparent => true }, isDumped => false, key => assets/images/testSprite.png, height => 0, persist => false }

width and height were unexpected 0 ! I tried to indicate width and height manually but no helps.

So what's wrong?

Addition

I try to add another one sprite in the same way, but it works.
The another sprite(ship.png from ScaleMode Example):

Now that this one could be added , then why my sprite not ?

Another interesting phenomena

Since testSprite.png was failed to add, other sprites could not name after it or it will not be able to be added in, either.
For example

testSprite.png fails and I renamed it as obsoleted.png.Then I rename the ship.png, which was successfully added previously, as testSprite.png and interestingly, the new testSprite.png could not be added in for now till it's renamed as other names but testSprite.png.

Now I delete the current obsoleted.png and renamed testSprite.png(originally is ship.png) as obsoleted.png, and it fails again!

Is that an issue?

@gama11 Ah,so far it occurs on windows platform and neko.

I added a FlxText object with a font into the state and centered it to the screen and tested.

Some characters seems a little glitchy, But in some other places:

It's well rendered.

So how to solve this? Is it related to the position?

=========================================

Well I tried that this will not happen when using integer position(both x and y are integers).
But it's rather annoying that I have to floor or ceiling them again and again. I just want to put them in exactly the center while its position is modified.

Is there any better solution?

I've ever met a similar problem but on Windows missing std.dll.
I've solved It in this method:
http://forum.haxeflixel.com/topic/671/windows-build-issues
You may as well have a try.

I tried to make a menu with "Exit" entry and seeked for how to quit the game safely until finally I found openfl.Lib.close().
However I didn't find the definition of close() in openfl.Lib and VSCode couldn't recognize this method and marked it as an error,though it's successfully compiled and worked properly.

Then how did it work?