php - SerializableClosure error in Laravel - Your serialized closure might have been modified and it's unsafe to be unserialized

Solution:

What solved it for me was running the following in my project folder:

php artisan route:clear
Copy code

I also ran the below commands before the above command, but the error persisted. It only went away when I did the above. For reference, here are the commands I ran beforehand:

php artisan cache:clear
php artisan config:clear
php artisan view:clear
npm run dev
php artisan key:generate
Copy code

I also want to note that I am using the following stack:

Laravel v8
Jetstream
Inertia
Vue2
Copy code

Solution:

This issue might occur due to change inAPP_KEY value in your.env file.

APP_KEY is used for secure data transmission and Laravel recommends to do that by setting it to a random string.

ThisAPP_KEY is used for

• Encrypting cookies.
• Creating the signature for signed URLs and queued closures.
• Encrypting values using the encrypt() and decrypt() helpers.

A encrypted data can be decrypted if you use the samekey which was used while encrypting.

So if possible look for a backup.env file and use the sameAPP_KEY to resolve it.

Solution:

In vendor → .env,

changeAPP_URL tohttp://localhost.