Forge Clean Command Panics with Invalid Type Error: Foundry Config Issue

[Mettice]

Problem:
When attempting to execute the forge clean command in my Solidity project, the application panics with an error related to the Foundry configuration. The error message indicates that there is an issue with the configuration file, specifically with the src setting. Despite attempting to resolve the problem by adjusting the configuration, such as changing the src setting to an array with multiple source directories, the error persists. This issue prevents me from using the forge clean command, which is crucial for cleaning up the project's build artifacts.

heres my foundry.toml config
[profile.default]
src = ["src"]
out = "out"
libs = ["lib"]
remappings = ['@chainlink=lib/lib/chainlink-brownie-contracts/contracts/']

attached an image which shows i have 2 src directory