An unexpected error occurred: "EPERM: operation not permitted in Yarn - npm

I am having problems installing new npm packages with Yarn. Every time I go on to add a new package it's throwing me this error. But when I delete my node_modules folder and run Yarn, everything works fine. Again when I try to add another package, it throws me the same error. Any solutions, I am having a headache right now.

In Windows first stop the development server and then try to install package.

I had same problem, I went into the Task Manager (CTRL+SHIFT+ESC) and killed all the NodeJs processes.

Press "Ctrl+C" to stop the server and repeat the installation.

if you're using visual studio code, cmd, or Windows Terminal, close it and run it in administrator mode. Usually, the reason for that error message is a result of limited privilege giving to the editor or npm or Yarn if you're using that.

This is likely due to you creating your project within the windows /mnt directory structure
Rerun inside the ~/home folder
(accessible within windows # //wsl$/

did you try to open CDM as run as administrator or if with wsl terminal try to use sudo like sudo yarn

The package I was trying to install before haveing this issue was yup. So resulted to
yarn add yup --legacy-peer-deps
which worked.

Sometimes when this occurs, you may first try to uncheck node_modules folder to read only.
If it is not working try to stop the running server and install your packages and then restart the server.

Terminate or stop the server ( close and reopen Vscode) and try agin. this will work for me !!

Restarting the system which causes stopping all the processes by Node, VScode, ... solved the problem.

Related

lb4 command is not found in Windows 10

I have install loopback 4 framework in my system by this command npm i -g #loopback/cli. But after installation by terminal I, can't create loopback application because it showing lb4 command not found. I also search through web and do many changes in environment variables but got same problem. I have executed this command with different terminal and same problem is getting.
I have attachments which will help you to understand the problem
I am running this command on command prompt in windows 10 system
This can occur for several reasons; Typically, it's caused by a misconfigured PATH variable or a stale "cache" of the terminal. A quick solution is to use npx #loopback/cli instead.

Installation problem with SQL Server 2017 (Error 1639)

I've been struggling to install sql server 2017 for a few days now. I keep getting message:
Oops... Unable to install SQL Server(setup.exe). Exit
code(Decimal)-2068052377 Error description:Invalid command line
argument.Consult the Windows Installer SDK for detailed command line
help.
I've tried to delete all sql folders , registry keys, uninstall everything related to SQL Server, installing as admin, cleaning and fixing the registry, rebooting,... Still cant install. Please help. Thanks in advance! I attached image and logs
You could try use revoUnistaller to uninstall all SQL system, reboot your system and use some clean up app like ccleaner and try reinstall.
Have you already see https://social.msdn.microsoft.com/Forums/sqlserver/en-US/2c04b654-107a-46ce-98a9-aa64068c6e28/sql-express-2017-installation-failed?forum=sqlsetupandupgrade
?

How to fix "spawn UNKNOWN" Error in Electron?

I built an Electron app on 64-bit windows machine and it runs well on other machines.
But today, I ran it on my 32-bit atom processor windows machine and I got the following error message.
I tried npm update but it doesn't work too.
the error message is,
How can I fix it? : (
Thank you for reading my question.
You don't have access rights. Try running as an administrator or change permissions.
Also you may try checking, if antivirus has blocked this process.

Failed to spawn command in atom

I am getting below error on opening files in atom. Does anyone know what could be the error ?
Failed to spawn command /cygdrive/c/Users/williams/AppData/Roaming/npm/flow. Make sure /cygdrive/c/Users/williams/AppData/Roaming/npm/flow is installed and on your PATH
Here is the screenshot
I found the solution that works for me
I have Ubuntu 18.04 installed
Solution :
Go to Ubuntu Software ( you will find it on taskbar or search in all apps)
In store search for xterm and install it.
Now after installation, run your code by F5
That's it.
Try these two things:
1) Open and run Atom as an administrator
2) Reinstall Atom
You don't mention if this just happened out of nowehere or after installing an extension.

Creat react app is not installing in windows 10

I had installed the create-react-app with no build configuration in my windows10 Pc got this error. I try in administrator role also I got this same error
if any one knows please tell me how to resolve
Run with antivirus disabled (if you use Windows Defender, turn off Real-Time protection and Cloud-based protection).It worked for me!
Hope it Helps!!!
Try with yarn or lower npm version.
https://yarnpkg.com/lang/en/docs/cli/create/
Hope issue will be fixed.