Error with Raycast hit.transform

So I am getting an error on the 21st line of this code saying:

"error CS1502: The best overloaded method match for `UnityEngine.Physics.Raycast(UnityEngine.Vector3, UnityEngine.Vector3, float, int)' has some invalid arguments"

I'm not sure what the issue is. I don't think it has anything to do with the way I set up the raycast. I'm not sure what I'm doing wrong here, and I would appreciate the help.

Here's the code:

         private Transform hitObjTrans;
         private GameObject global;
         private GameObject blockObj;
         private RaycastHit hit;
         private bool up = false;
     
         void Awake() 
         {
             global = GameObject.Find("Global");
         }
         
         void Update () 
         {
             if (Input.GetMouseButtonUp(0))
             {
                 if (Physics.Raycast(transform.position, transform.forward, out hit))
                 {
                     foreach (Transform block in global.GetComponent<GlobalVar>().blocks)
                     {
                         if (hit.transform == block)
                         {
                             block.GetComponent<BlockVar>().Boom(); //accesses variable that is in all blocks.
                         }
                     }
                 }
             }
     
             if (Input.GetKeyDown("e"))
             {
                 if(up)
                 {
                     up = false;
                     blockObj.transform.parent = null;
                 }
                 else
                 {
                     up = true;
     
                     if (Physics.Raycast(transform.position, transform.forward, 1.5f, out hit))
                     {
                         blockObj = hit;
                         hit.transform.parent = transform;
                     }
                 }
             }
         }