Unable to open sketches from UNC path

[119311]

Describe the problem

I cannot open files in WSL

I can't open sketches either from explorer or from arduino IDE.

To reproduce

Open Arduino IDE and select Open... then choose sketch in WSL.

Expected behavior

Sketch in WSL will not be opened, but a new sketch will be opened.

Arduino IDE version

Original report

2.0.4-nightly-20230104

Last verified with

2.3.2

Operating system

Windows

Operating system version

10.0.19045.2364

Additional context

I also tried with Arduino IDE 2.0.3

---

My environment is as follows:

Click here to see info

Windows and WSL
WSL Version: 1.0.3.0
Kernel Version: 5.15.79.1
WSLg Version: 1.0.47
MSRDC Version: 1.2.3575
Direct3D Version: 1.606.4
DXCore Version: 10.0.25131.1002-220531-1700.rs-onecore-base2-hyp
Windows Version 10.0.19045.2364

WSL distro

OS:	Ubuntu	22.04.1	LTS	on	Windows	10	x86_64
Kernel:	5.15.79.1-microsoft-standard-WSL2

Packages:	1748	(dpkg),	4	(snap)
Shell:	zsh	5.8.1
Theme:	Adwaita	[GTK3]
Icons:	Adwaita	[GTK3]
Terminal:	Windows	Terminal
CPU:	AMD	Ryzen	5	4500U	with	Radeon	Graphics	(6)	@	2.370GHz
GPU:	e775:00:00.0	Microsoft	Corporation	Device	008e
Memory:	1747MiB	/	7946MiB

Workaround

Move the sketch to a different location that is not under a UNC path.

Alternatively, if you would like to continue to open sketches from the network share, you can map it to a drive on your computer. Then make sure to open the sketches from that drive instead of from the network location:

https://support.microsoft.com/windows/map-a-network-drive-in-windows-29ce55d1-34e3-a7e2-4801-131475f9557d

Additional reports

• Library installation fails when sketchbook is under a redirected Windows Documents folder #1475 (comment)
• Sketches on UNC paths cannot be opened from Windows File Explorer #1872
• Unable to open sketches from UNC path #1797 (comment)
• https://forum.arduino.cc/t/ide-2-0-not-loading-old-sketches/1006159
• https://forum.arduino.cc/t/ide-not-working-with-source-in-a-unc-path/1027968/1
• https://forum.arduino.cc/t/ide-not-working-with-source-in-a-unc-path/1027968/9
• https://forum.arduino.cc/t/ide-not-working-with-source-in-a-unc-path/1027968/11
• https://forum.arduino.cc/t/ide-not-working-with-source-in-a-unc-path/1027968/13
• https://forum.arduino.cc/t/ide-2-0-wont-open-ino-files/1032615/1
• https://forum.arduino.cc/t/ide-2-0-wont-open-ino-files/1032615/5
• https://forum.arduino.cc/t/ide-2-0-wont-open-ino-files/1032615/6
• https://forum.arduino.cc/t/opening-file-from-explorer-opens-a-new-sketch/1077099
• https://forum.arduino.cc/t/impossible-to-open-inos-on-my-synology-nas/1106591
• https://forum.arduino.cc/t/arduino-ide-wont-load-a-sketch-into-the-editor/1109867
• https://forum.arduino.cc/t/ide-wont-load-sketches/1112447
• https://forum.arduino.cc/t/save-as-doesnt-work-in-ide-2-1-0/1124209/7
• https://forum.arduino.cc/t/upgrade-from-ide-1-8-16-to-ide-2-2-1-sketches-from-nas-cannot-be-opened/1184931
• https://forum.arduino.cc/t/fail-to-open-project-form-network-path/1187512
• https://forum.arduino.cc/t/when-opening-files-on-a-server-file-does-not-open-get-a-blank-instead/1245346
• https://forum.arduino.cc/t/ide-not-working-with-source-in-a-unc-path-revival/1316700
• https://forum.arduino.cc/t/save-programming-to-nas-harddrive/1337990/11

Related

• https://groups.google.com/a/arduino.cc/g/developers/c/oZtiowbGl18/m/JbBBcTKaBgAJ

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the latest nightly build
• My report contains all necessary details

[per1234]

Hi @119311 please tell us the full path of one of the sketches that won't open.

[119311]

Hi @per1234 .

It looks like you didn't have enough information
sorry.

sketch's path is like:

\\wsl$\Ubuntu\home\adobe\report\HCI\w1\src\ReadPushSwitch\ReadPushSwitch.ino

[per1234]

Is it \wsl$\... or \\wsl$\...? (note the first starts with a single \, while the second starts with two \)

I ask because there is a known bug that produces this fault when attempting to open sketches from any UNC path like \\wsl$\... (regardless of whether WSL is involved).

Unfortunately I don't have any experience with WSL (I use a standard Linux machine when I want Linux and Git Bash to get a sufficiently Linux-ish experience from my Windows machine), so I apologize if I am a bit slow to understand the details of the report.

[119311]

The path started with "//".
Oh, my point was that I could not open the UNC path.

I see, so there is a known bug.
If so, would I close this issue?

[per1234]

Thanks for the clarification.

would I close this issue?

The bug is actually in the Eclipse Theia IDE framework Arduino IDE is built on. I submitted a report to that project's repository:

eclipse-theia/theia#11997

But I think it is reasonable for us to document the bug in this project's issue tracker as well so I think we should leave this issue open until the bug is resolved by updating the Theia version used by Arduino IDE to one that does not have the bug (we have to wait for a fix and a release before that will be possible). Even though the bug is not in the codebase hosted in this repository, that fact is not at all obvious so affected users will come here to look for an existing report rather than the Theia repository.

[119311]

Ah, so the arduino IDE was based on theia, not codium!
I was wondering why I could open it with the codium.
Thank you for your response.