[Windows 10 x64 1903]Writer process ended unexpectedly

• Etcher version: 1.5.99+5d95fcb8, Type = nsis
• Operating system and architecture: Windows 10 x64 1903
• Image flashed: ubuntu-20.04-desktop-amd64.iso
• Do you see any meaningful error information in the DevTools?

"error":{"description":"Please try again, and contact the Etcher team if the problem persists","report":false,"code":"ECHILDDIED"},"sample":0.1,"applicationSessionUuid":"f0e458f3-3043-4e9a-be34-b3d3996cd507","flashingWorkflowUuid":"d0126961-8a80-4098-8442-7f6e86acae6b"})

Steps I did

• Followed CONTRIBUTING.md to build Etcher locally on my dev environment, then attempted to flash the provided image onto a 16 GB USB.

Following error occurred after elevating the cmd script:

Controlled folder access is off:

If needed, I can provide more info about steps I took while building.

[unm4sk1g]

1. Installed fresh installation of Windows 10 Pro x64 1903, along with dependencies required in contributing document (NSIS 2.51, Python2.7, VS with Desktop C++ env, jq, msys-make etc.)
2. Cloned the repository recursively with scripts submodule.
3. Ran pip install -r requirements.txt
4. Ran make electron-develop Had some issues here, some dependencies required mingw32-make, for some reason things like shasum and sha1sum were missing, managed to fix that.
5. Finally managed to install all dependencies and ran make webpack
6. After everything, ran make electron-build and used the output setup to install Etcher on my PC.
7. Tried to flash an image, got thrown the error above.

And yes, I’m running etcher as a built package.

[unm4sk1g]

@thundron I’ve updated etcher-sdk to v4.1.17, issue still persists.

I’ve added some console.logs to child-writer.ts, specifically on ipc write event just to see if it even comes to this event before it crashes. Then I’ve executed the temporary cmd file manually from an elevated cmd before allowing it elevated permissions through UAC, just to see if there will be any output from the script itself.

This is the output:

C:\Users\sunje\AppData\Local\Temp>balena-etcher-electron--2456-n2CLDPWDwPe2-.cmd

C:\Users\sunje\AppData\Local\Temp>chcp 65001
Active code page: 65001

C:\Users\sunje\AppData\Local\Temp>set "IPC_SERVER_ID=etcher-server-2456"

C:\Users\sunje\AppData\Local\Temp>set "IPC_CLIENT_ID=etcher-client-2456"

C:\Users\sunje\AppData\Local\Temp>set "IPC_SOCKET_ROOT=C:\Users\sunje\AppData\Local\Temp\"

C:\Users\sunje\AppData\Local\Temp>set "ELECTRON_RUN_AS_NODE=1"

C:\Users\sunje\AppData\Local\Temp>set "UV_THREADPOOL_SIZE=64"

C:\Users\sunje\AppData\Local\Temp>set "SKIP=1"

C:\Users\sunje\AppData\Local\Temp>"C:\Users\sunje\AppData\Local\Temp\1eJu86M6u6uCJCmBnzf0pO3Tkaz\balenaEtcher.exe" "C:\Users\sunje\AppData\Local\Temp\1eJu86M6u6uCJCmBnzf0pO3Tkaz\resources\app"
WRITE STARTED

C:\Users\sunje\AppData\Local\Temp>

Only the console.log I’ve added is outputted from the script, nothing else. Don’t know if that’s normal behaviour or not, but the error still comes out the same as from the original issue above, terminate code: ECHILDDIED