It looks like you're encountering an issue with directory write permissions in your system.

To resolve this error in the "/var/www/html/Textile-backend/public/textileproduct/" directory on a Windows system, you can follow these steps:

1. Check Directory Permissions: Ensure that the directory "/var/www/html/Textile-backend/public/textileproduct/" has the necessary write permissions for the user or process attempting to write to it. You can do this by right-clicking on the directory, selecting "Properties," and navigating to the "Security" tab to adjust the permissions accordingly.

2. Run as Administrator: If you are running a process or command that requires write access to this directory, ensure that you are running it with administrative privileges. Right-click on the application or command prompt and select "Run as administrator" to elevate the privileges.

3. Use Command Line: You can also attempt to change the directory permissions using the command line. Open Command Prompt as an administrator and use the "icacls" command to grant write permissions to the desired directory.

4. Anti-virus or Security Software: Some anti-virus or security software may restrict write access to specific directories. Consider temporarily disabling such software to see if it's causing the and adjust its settings accordingly.

5. Check for Program Locks: Ensure that no other program or process has a lock on the directory, preventing write access. Close any applications that might be using the directory or restart the system to release any locks.

Once you have addressed the directory write permissions, attempt to write to the directory again to verify that the issue has been resolved. If the problem persists, consider reviewing event logs or error messages for further into the root cause of the issue.