React native, QR Code not showing on terminal

[uzuki-P]

• VSCode Version: Code 1.15.0 (8b95971, 2017-08-09T20:16:18.034Z)
• OS Version: Windows_NT x64 6.1.7601
• Extensions:

Extension	Author (truncated)	Version
vscode-database	baj	1.2.0
npm-intellisense	chr	1.3.0
vscode-eslint	dba	1.2.11
githistory	don	0.2.3
gitlens	eam	4.3.3
php-debug	fel	1.11.1
php-intellisense	fel	1.5.0
php-pack	fel	1.0.1
code-runner	for	0.6.33
vscode-yarn	gam	1.2.0
azure-functions-tools	joh	0.3.0
vscode-codemetrics	kis	1.9.0
sublime-keybindings	ms-	2.9.1
debugger-for-chrome	msj	3.1.8
material-icon-theme	PKi	2.1.0
java	red	0.8.0
vscode-paste-and-indent	Rub	0.0.8
code-settings-sync	Sha	2.8.2
php-ci	sma	0.2.2
vscode-gulp	tan	0.0.4
vscode-todo-highlight	way	0.5.8
change-case	wma	1.0.0
JavaScriptSnippets	xab	1.4.1

(2 theme extensions excluded)

---

Steps to Reproduce:

1. Run yarn start. Wait till QR generated.
2. Show only blank space

Reproduces without extensions: Yes/No

[roblourens]

What's the problem? Need more details.

[uzuki-P]

The QR code is not shown. I think the character is not rendered on build in terminal.

[roblourens]

I don't know what QR code you're talking about, I need steps to repro this.

[uzuki-P]

Step to reproduce:

1. yarn global create-react-native-app
2. create-react-native-app helloWorld
3. cd helloWorld
4. yarn start

Using VS Code Terminal:

Using Conemu:

[roblourens]

@Tyriar?

[Tyriar]

Works on macOS, this is likely related to the escape sequence going through winpty and powershell.

@rahmatfajar15 what shell are you using?

[uzuki-P]

@Tyriar I'm using cmd

[dav-ell]

I'm also experiencing this issue. I created a react native app using create-react-native-app and opened the project in VS Code for the first time, typed npm start in the integrated terminal using Powershell on Windows 10.

Using powershell outside of VS Code:

[nathanhannig]

same issue with vs code not showing qr code ion the integrated powershell on win 10

[ghost]

same issue with vs code version 1.16.1 not showing the qr code using cmd on Windows 8.1

[jovelromeo]

same issue 1.17 on windows 10, hope get fixed soon.

[hfmm99]

I have the same issue: Windows 10, Visual Studio Code, and either Powershell or CMD terminal.

[xunilog]

Same issue, Windows 7, Visual Studio Code integrated Terminal. Tried several themes (bright, dark), same issue.

[saintplay]

I can successfully see the QR Code now.
Don't know if it's because of the vscode or expo latest update

[KrallXZ]

I have VSCode 1.18.1 and newest create-react-native-app and have same problem.
I'm using cmd as integrated terminal

[MauricioLudwig]

I've also got the exact same problem. Whether I use yarn start or npm start I'm unable to see the QR code. Using Powershell currently but I've tried cmd which also fails.

[vijaysutaria]

I have same issue with VS Code 1.18.1, Windows 10, not able to see QR Code in Terminal

[Tyriar]

Looks like it also happens when using npm install:

The left of the dots should be solid white.

[cankatabaci]

I have the same problem.

I experienced this problem after this use-case:

1. run npm start

2. 21:43:26: Starting packager...
   Packager started!

3. `Your phone will need to be on the same local network as this computer.
   For links to install the Expo app, please visit https://expo.io.

Logs from serving your app will appear here. Press Ctrl+C at any time to stop.

› Press a to open Android device or emulator.
› Press q to display QR code.
› Press r to restart packager, or R to restart packager and clear cache.
› Press d to toggle development mode. (current mode: development)`
4. i'm press q then it's like in the attached photo

and when I tried this use-case in powershell i didn't get an error. it worked as it should be
if it helps, I can share system properties and package.json or something like that

[Tyriar]

I think this is easily reproducible, it just needs someone to dig deeper and investigate. I suspect the problem lies within winpty and may be tricky to fix. https://github.com/rprichard/winpty

[nlucero]

Same issue on vs code 1.19.1, Windows 10 Pro 64 Bit, using cmd and Git Bash as console.

[joshkmartinez]

I got the same problem... This is super annoying

[bondansebastian]

Same problem on vs code 1.19.2, Windows 10 Education 64 Bit, Git Bash as console

[Tyriar]

This is an issue with upstream https://github.com/rprichard/winpty, going to close this off as we have no plans on attempting to fix. By all means look into it upstream though.

[vscodebot]

This issue is being closed to keep the number of issues in our inbox on a manageable level, we are closing issues that have been on the backlog for a long time but have not gained traction: We look at the number of votes the issue has received and the number of duplicate issues filed. If you disagree and feel that this issue is crucial: We are happy to listen and to reconsider.

If you wonder what we are up to, please see our roadmap and issue reporting guidelines.

Thanks for your understanding and happy coding!

[himanshu-9419]

I think this is a small issue, it wont take much time and should be fixed earliest.