When i try to install it on laravel 6 this error (RepositorySecurityException) appear

[computerzman]

[Composer\Repository\RepositorySecurityException] The contents of https://repo.packagist.org/p/symfony/http-foundation%2419e68eb5aba1d88b4af1d25aa0c7a103510d6b4d2e0dcb507f8036285deb8bab.json donot match its signature. This could indicate a man-in-the-middle attack or e.g. antivirus software corrupting files. Try running composer again and report this if you think it is a mistake.

[sfelix-martins]

Do you solved it?

Please send me more details how to simulate the error. Do you tried install in a fresh laravel project?