issue finding node.exe

[richardlalancetteyoui]

Hey all,

I am getting intermittent issues not finding node.exe when I use the steps provided by the documentation.

          emsdk/emsdk install latest
          emsdk/emsdk activate latest
          emsdk/emsdk_env.ps1 

make -C docs result:

make: Entering directory 'C:/wm/DW-Hub/docs'
emcc  src/main.cpp src/Device.cpp src/imgui_impl_glfw.cpp src/imgui_impl_opengl3.cpp src/imgui.cpp src/imgui_draw.cpp src/imgui_demo.cpp src/imgui_widgets.cpp src/imgui_tables.cpp src/yoga/Yoga.cpp src/yoga/YGValue.cpp src/yoga/YGStyle.cpp  src/yoga/YGNodePrint.cpp src/yoga/YGNode.cpp src/yoga/YGLayout.cpp  src/yoga/YGEnums.cpp src/yoga/YGConfig.cpp src/yoga/Utils.cpp src/yoga/log.cpp  src/yoga/event/event.cpp  src/yoga/internal/experiments.cpp -std=c++11 -o imgui.js -lGL -s USE_WEBGL2=1 -s USE_GLFW=3 -s FULL_ES3=1 -O2 --preload-file data -s WASM=1 -Isrc -Isrc/yoga
emcc: warning: cannot check node version: [WinError 2] The system cannot find the file specified [-Wversion-check]
shared:INFO: (Emscripten: Running sanity checks)
emcc: error: The configured node executable (['C:/wm/DW-Hub/emsdk/node/14.15.5_64bit/bin/node.exe']) does not seem to work, check the paths in C:\wm\DW-Hub\emsdk\.emscripten ([WinError 2] The system cannot find the file specified)
make: *** [Makefile:21: imgui.js] Error 1
make: Leaving directory 'C:/wm/DW-Hub/docs'

[richardlalancetteyoui]

If I navigate to C:/wm/DW-Hub/emsdk/node/14.15.5_64bit/bin/ node.exe is really not at the location.

[richardlalancetteyoui]

The odd thing is that github action workflow is still working fine.

name: Build wasm based imgui POC
on: [push]

jobs:
  setup-emscripten:
    runs-on: windows-latest
    name: Setup emscripten
    steps:
      - name: pre-setup
        run: git config --system core.longpaths true
      - name: Checkout
        uses: actions/checkout@v1
      - name: Test emscripten
        run: |
          emsdk/emsdk install latest
          emsdk/emsdk activate latest
          emsdk/emsdk_env.ps1 
          make -C docs

[richardlalancetteyoui]

And this might come handy.

The additional following precompiled SDKs are also available for download:
         sdk-releases-upstream-e13a2d74c5fa5f175ae7cffd4197fe7f78bea304-64bit
    *    sdk-releases-upstream-c69458f1bbf3ef5b8da4e934de210659cc9bca04-64bit   INSTALLED
         sdk-releases-fastcomp-edf24e7233e0def312a08cc8dcec63a461155da1-64bit
         sdk-releases-fastcomp-536568644fd67d53778f6111fdd5f64ad3f4c539-64bit
         sdk-fastcomp-1.38.30-64bit
         sdk-fastcomp-1.38.31-64bit

The following SDKs can be compiled from source:
         sdk-upstream-main-64bit
         sdk-fastcomp-tag-1.38.30-64bit
         sdk-fastcomp-tag-1.38.31-64bit

The following precompiled tool packages are available for download:
           releases-upstream-e13a2d74c5fa5f175ae7cffd4197fe7f78bea304-64bit
    (*)    releases-upstream-c69458f1bbf3ef5b8da4e934de210659cc9bca04-64bit     INSTALLED
           releases-fastcomp-edf24e7233e0def312a08cc8dcec63a461155da1-64bit
           releases-fastcomp-536568644fd67d53778f6111fdd5f64ad3f4c539-64bit
           fastcomp-clang-e1.38.30-64bit
           fastcomp-clang-e1.38.31-64bit
    (*)    node-14.15.5-64bit           INSTALLED
     *     python-3.9.2-1-64bit         INSTALLED
     *     java-8.152-64bit             INSTALLED
           emscripten-1.38.30
           emscripten-1.38.31
           gnu-2.5.4
           mingw-7.1.0-64bit

[sbc100]

You you try re-installing node:

$ rm -rf emsdk/node
$ emsdk/emsdk install node-14.15.5-64bit

When you do this you will the URL from which the tar archive is being downloaded... all the install step is doing is downloading and extracting that tar archive.. any idea why that would not work on your machine?

[richardlalancetteyoui]

You you try re-installing node:

$ rm -rf emsdk/node
$ emsdk/emsdk install node-14.15.5-64bit

When you do this you will the URL from which the tar archive is being downloaded... all the install step is doing is downloading and extracting that tar archive.. any idea why that would not work on your machine?

Indeed, I reinstall the entire sdk using this.

emsdk/emsdk install latest
emsdk/emsdk activate latest
emsdk/emsdk_env.ps1 

[rlalance]

@sbc100 That actually worked! Wondering why emsdk/emsdk install latest does not install node properly, but at least, I have a way forward. Thank you! You can close this.

[sbc100]

emsdk/emsdk install latest should indeed install node correctly part of installing latest is to install node-14.15.5-64bit.. its just one of the dependencies of latest. You can try again by rm -rf emsdk/upstream emsdk/node and then emsdk/emsdk install latest. You should see both upstream and node re-installed.

[rlalance]

Thank you so much! I've been banging my head on this for hours! 🤗

[richardlalancetteyoui]

ah finally. Issue reproduced on github workflow too.

Was wondering if it would ever break :D

[sbc100]

Well, if you can figure out why the extraction of node.exe doesn't seem to work that would be very interesting!

Can you link to your github workflow file? Are you using any unusual stuff like mingw or cygwin?

[rlalance]

Flow is pretty simple. windows-latest

name: Build wasm based imgui POC
on: [push]

jobs:
  setup-emscripten:
    runs-on: windows-latest
    name: Setup emscripten
    steps:
      - name: pre-setup
        run: git config --system core.longpaths true
      - name: Checkout
        uses: actions/checkout@v1
      - name: Test emscripten
        run: |
          emsdk/emsdk install latest
          emsdk/emsdk activate latest
          emsdk/emsdk_env.ps1 
          make -C docs

[sbc100]

I think you might need to debug the archive extraction process to find out why that file is missing when the extraction happens.

[rlalance]

Yup, intermittent too.

[sbc100]

Yup, intermittent too.

Well that makes no sense at all! .. how odd

[rlalance]

Starting to wonder. Maybe it's because emsdk is commited to my repo... (I did this to speed up the build) Then I run the commands on top of it, and it does not like it.

[sbc100]

Do you have the downloaded binaries checked in too? Or just the emsdk scripts?

[richardlalancetteyoui]

Oh. I do! To latest.

[sbc100]

It seems likely here is some kind of issue with the checked-in version of the node tree. When you see the failure as I assume the "install" step is not actually doing anything since the binaries are already part of the checked-out tree. Therefore it seems likely the tree git repo itself is missing the node.exe file? Can you see that file among the files checked into git?

[Kutalia]

To me the issue was using WSL when emsdk was itself installed from Windows. If you install emsdk from Windows, you can't use it in WSL (even after correctly setting path) and vice versa.

[rlalance]

Closing this as I have moved on to another project. But, great info! Thank you guys!