laravel error: curl_setopt(): Unable to create temporary file

Its a permission issue
First of all you have to go to you Temp folder and check for permission
in my case its path is this C:\Users\DELL\AppData\Local
look fo the temp tolder and Right Click on it and go to properties and in it go to Security Tab

In this image you have to select user and click on Edit and tick on Allow on all Permissions
After this you have to run this command again.
if Not solved Then you Have to Try this method if you are using xampp
Go to xampp folder and look for tmp folder and go to properties and give permissions like i teach you above.
then Open xampp control then click on it

and look for sys_temp_dir and edit it like this
sys_temp_dir = "E:\xampp\tmp"
and again stop apache and my sql and then start and then run command
composer update or composer install you can get rid of this error
make sure if composer update is not work then run compoer install first

This error usually occurs when PHP can't create a temporary file for cURL due to permission issues or misconfigured temporary directory settings.

Here’s how you can fix it:

• Check Directory Permissions: Ensure the directory used for temporary files (like /tmp on Linux) has the correct write permissions for the user running PHP.
• Set a Custom Temp Directory: In your Laravel app, add this to your cURL options:

curl_setopt($ch, CURLOPT_TEMPFILE, '/path/to/writable/temp');

curl_setopt($ch, CURLOPT_TEMPFILE, '/path/to/writable/temp');

Verify php.ini Settings: Check the sys_temp_dir directive in php.ini and confirm it's pointing to a writable directory.

I found the problem. I didn't have the variable TMP in the environment variables.