Problems using system.IO to create screenshots of camera

Hello

I'm using the following script. The same as described in This thread. I keep getting this error.

"DirectoryNotFoundException: Could not find a part of the path "/Users/Admin/Documents/Unity /Projects/VJ/Assets/screenshots/screen_4096x2232_71.png". System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean anonymous, FileOptions options) (at /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/corlib/System.IO/FileStream.cs:292) System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize) (wrapper remoting-invoke-with-check) System.IO.FileStream:.ctor"

and here's the script.

 using UnityEngine;
 using System.Collections;
 using System.IO;
 
 
 public class HiResScreenShots : MonoBehaviour {
     
 
     public int resWidth = 4096; 
     public int resHeight = 2232;
     
     private bool takeHiResShot = false;
     
     public static string ScreenShotName(int width, int height) {
         return string.Format("{0}/screenshots/screen_{1}x{2}_{3}.png", Application.dataPath, width, height, Time.frameCount);
     }
     
     public void TakeHiResShot() {
         takeHiResShot = true;
     }
     
     void LateUpdate() {
         takeHiResShot |= Input.GetKeyDown("k");
         if (takeHiResShot) {
             RenderTexture rt = new RenderTexture(resWidth, resHeight, 24);
             camera.targetTexture = rt;
             Texture2D screenShot = new Texture2D(resWidth, resHeight, TextureFormat.RGB24, false);
             camera.Render();
             RenderTexture.active = rt;
             screenShot.ReadPixels(new Rect(0, 0, resWidth, resHeight), 0, 0);
             camera.targetTexture = null;
             RenderTexture.active = null;
             Destroy(rt);
             byte[] bytes = screenShot.EncodeToPNG();
             string filename = ScreenShotName(resWidth, resHeight);
             System.IO.File.WriteAllBytes(filename, bytes);
             Debug.Log(string.Format("Took screenshot to: {0}", filename));
             takeHiResShot = false;
         }
     }
 }