trying to invoke a method. method cannot be called

Question

private void OnCollisionEnter(Collision other) 
{
    switch(other.gameObject.tag)
    {
        default:
            Invoke("ReloadScene", 1f); **//trying to invoke the method ReloadScene**
            break;
    }

void ReloadScene() **//This gets a yellow line under it and doesnt work**
{
    int currentScene = SceneManager.GetActiveScene().buildIndex;
    SceneManager.LoadScene(currentScene);
}

Whenever i try invoking my method ReloadScene gets a yellow squiggly line under it and states "The local function is declared but never used".