All errors have to be fixed

I created for my FPS game a script for bullits.
var bullitPrefab:Transform;

function Update () {

        var bullit = Instantiate(bullitPrefab, GameObject.Find("spawnPoint").transform.position, Quaternion.identity);
        bullitPrefab.rigidbody.AddForce(Transform.forward * 200);


But there is one problem if i run the game in unity it sets: All compiler errors have to be fixed before enter playmode.
What does this mean?
I tried this:
All bullit rename to arrow because my bullit is named Arrow
That doesnt work
Then i did all rename back to bullit and rename the arrow to bullit.
How do i fix this?

You open the “Console” window if it is not already open, and you double click on any error in red. That will highlight the error in Monodevelop. Then you fix the error.

Looking at this script, you need ‘transform’ (lower case ‘t’) rather than ‘Transform’ on line 7:

    bullitPrefab.rigidbody.AddForce(transform.forward * 200);