hi Robert,

I started learn kha from lobos lenco tutorial in kodegarden.org. I copy paste from there. why its work perfectly in kodegarden.org but come up error in my project like this:

TypeError: Cannot read property 'createProgram' of null
at kha_graphics4_PipelineState.compile (/opt/Kha/Backends/HTML5/kha/graphics4/PipelineState.hx:27:13)
at new Empty (/Users/dhemitus/Projects/kha/OtherKha/Sources/Main.hx:159:3)
at Main.init (/Users/dhemitus/Projects/kha/OtherKha/Sources/Main.hx:48:14)
at /opt/Kha/Sources/kha/System.hx:99:4
at Function.kha_SystemImpl.initSecondStep (/opt/Kha/Backends/HTML5/kha/SystemImpl.hx3)
at /opt/Kha/Backends/HTML5/kha/SystemImpl.hx:78:4

thank you

No idea, please upload your project somewhere so I can have a look.

actually this is not real project. just learn draw a triangle and I put on this github

https://github.com/dhemitus/FirstKha

Your project works for me, I see a red triangle. Is your Kha up to date?

you right. it's works when I compile it in none debug mode. I got an error message because I always compile it in debug mode all along. thank you Robert

But but... that makes no sense. What exactly do you mean by compiling in debug mode?

I use this command:
node /opt/Kha/make.js debug-html5 --debug

this command run automatically when I press button run on vscode

But that works fine for me. Can you show me the complete build output?

you mean report from terminal and debug console? or results file from build

this one is from terminal:

Executing task: node /opt/Kha/make.js debug-html5 --debug <

Using Kha (0fc78dfc) from /opt/Kha
Creating Kha project.
Exporting asset 1 of 2 (PixelMeComputer.png).
Exporting asset 2 of 2 (poster_optq.jpg).
Compiling shader 1 of 2 (simple.frag.glsl).
Compiling shader 2 of 2 (simple.vert.glsl).
Skipping shader 1 of 9 (clear.comp.glsl).
Compiling shader 2 of 9 (painter-colored.frag.glsl).
Compiling shader 3 of 9 (painter-colored.vert.glsl).
Compiling shader 4 of 9 (painter-image.frag.glsl).
Compiling shader 5 of 9 (painter-image.vert.glsl).
Compiling shader 6 of 9 (painter-text.frag.glsl).
Compiling shader 7 of 9 (painter-text.vert.glsl).
Compiling shader 8 of 9 (painter-video.frag.glsl).
Compiling shader 9 of 9 (painter-video.vert.glsl).
Done.

Terminal will be reused by tasks, press any key to close it.

and this is report from debug console:
kha/SystemImpl.hx:346: Could not initialize WebGL 2, falling back to WebGL.
Log.hx:66
kha/SystemImpl.hx:368: Could not initialize WebGL, falling back to <canvas>.
Log.hx:66
The Web Audio autoplay policy will be re-enabled in Chrome 70 (October 2018). Please check that your website is compatible with it. https://goo.gl/7K7WLu
Audio.hx:22
TypeError: Cannot read property 'createProgram' of null
at kha_graphics4_PipelineState.compile (/opt/Kha/Backends/HTML5/kha/graphics4/PipelineState.hx:27:13)
at new Project (/Users/dhemitus/Projects/kha/OtherKha/Sources/Project.hx:54:3)
at /Users/dhemitus/Projects/kha/OtherKha/Sources/Main.hx:13:27
at onLoaded (/opt/Kha/Sources/kha/Assets.hx:133:24)
at kha_Assets.loadImage.fileName (/opt/Kha/Sources/kha/Assets.hx:113:53)
at /opt/Kha/Sources/kha/Assets.hx:167:4
at HTMLImageElement.img.onload (/opt/Kha/Backends/HTML5/kha/LoaderImpl.hx:31:42)

Ah, that tells us what's going on. Electron (which is used to run html5-debug builds) can not enable WebGL on your system (might be a black-listed driver or whatever) and then loading shaders of course fails.

so, i think I should stick with html5 build until I get a proper hardware for using html5-debug build. anyway, thank you Robert