Repository: godot
Issue: In every project opens, a blank load error popup showing
Labels: bug,needs testing,topic:import,topic:3d

### Godot version

4.0.1 stable

### System information

system: windows 10, ryzen 6 3600, rx 590, 16gb RAM, android device: OPPO A57, CPH2387, android version 12

### Issue description

![image](https://user-images.githubusercontent.com/62302722/228761471-90f1a409-38ea-4830-88d4-d348d47860d4.png)

The issue mainly started after i rearranged some project files to different folders.(not sure exact reason)
if i open project in godot console mode.it outputs like below

<Details>
```
WARNING: res://systems/player/models/male/materials/Body.tres:3 - ext_resource, invalid UID: uid://cs2we4d60hlko - using text path instead: res://experiment/male/male_29.png
WARNING:     at:  res://UI/MainHud/MainHud.tscn:31 - ext_resource, invalid UID: uid://um15frtga5lo - using text path instead: res://systems/inventory/inventory.tscn
load (scene/resources/resource_format_text.cpp:448)
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_29.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Body.tres:4 - ext_resource, invalid UID: uid://dctgx6bjbterc - using text path instead: res://experiment/male/male_30.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_30.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Body.tres:5 - ext_resource, invalid UID: uid://do65vqddq0qt7 - using text path instead: res://experiment/male/male_28.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_28.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Body.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_29.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Body.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_29.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Body.tres. Make sure resources have been imported by opening the project in the editor at least once.
WARNING:   at:  res://UI/JoyStick/JoyStick.tscn:4 - ext_resource, invalid UID: uid://dawmvs64d45yr - using text path instead: res://UI/JoyStick/joystick_base_outline.png
(core/io/resource_loader.cpp:222)
     at: load (scene/resources/resource_format_text.cpp:448)
WARNING: res://systems/player/models/male/materials/Bottom.001.tres:3 - ext_resource, invalid UID: uid://li3g71hth2ga - using text path instead: res://experiment/male/male_465.png
WARNING:     at:  res://UI/JoyStick/JoyStick.tscn:5 - ext_resource, invalid UID: uid://cpll3277utkix - using text path instead: res://UI/JoyStick/joystick_tip.png
load (scene/resources/resource_format_text.cpp:448)
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_465.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.001.tres:4 - ext_resource, invalid UID: uid://c21scvttftjtj - using text path instead: res://experiment/male/male_466.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_466.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.001.tres:5 - ext_resource, invalid UID: uid://bc2jq0qnrd1w3 - using text path instead: res://experiment/male/male_464.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_464.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.001.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_465.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.001.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_465.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.001.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.002.tres:3 - ext_resource, invalid UID: uid://c53jigyfqpeny - using text path instead: res://experiment/male/male_19.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_19.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.002.tres:4 - ext_resource, invalid UID: uid://bwna4khk28w3h - using text path instead: res://experiment/male/male_20.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_20.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.002.tres:5 - ext_resource, invalid UID: uid://d1h1r0s2ul6py - using text path instead: res://experiment/male/male_18.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_18.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.002.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_19.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.002.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_19.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.002.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.003.tres:3 - ext_resource, invalid UID: uid://irn0qwchcw4q - using text path instead: res://experiment/male/male_8.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_8.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.003.tres:4 - ext_resource, invalid UID: uid://cr57w1egev22o - using text path instead: res://experiment/male/male_9.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_9.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.003.tres:5 - ext_resource, invalid UID: uid://ck2uk0rmowde5 - using text path instead: res://experiment/male/male_7.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_7.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.003.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_8.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.003.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_8.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.003.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.004.tres:3 - ext_resource, invalid UID: uid://dvfmggjxcwbnk - using text path instead: res://experiment/male/male_129.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_129.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.004.tres:4 - ext_resource, invalid UID: uid://1m26t7ik82mp - using text path instead: res://experiment/male/male_130.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_130.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.004.tres:5 - ext_resource, invalid UID: uid://cdnexhjbgiwl5 - using text path instead: res://experiment/male/male_128.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_128.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.004.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_129.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.004.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_129.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.004.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.005.tres:3 - ext_resource, invalid UID: uid://bafogkfig8dsv - using text path instead: res://experiment/male/male_145.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_145.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.005.tres:4 - ext_resource, invalid UID: uid://bkknvmd0yuw3w - using text path instead: res://experiment/male/male_146.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_146.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.005.tres:5 - ext_resource, invalid UID: uid://feuqutmhgocn - using text path instead: res://experiment/male/male_144.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_144.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.005.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_145.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.005.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_145.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.005.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.006.tres:3 - ext_resource, invalid UID: uid://br6crsb2sruw8 - using text path instead: res://experiment/male/male_229.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_229.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.006.tres:4 - ext_resource, invalid UID: uid://cdvnfjydu3dvk - using text path instead: res://experiment/male/male_230.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_230.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.006.tres:5 - ext_resource, invalid UID: uid://da4htxf3mi0hc - using text path instead: res://experiment/male/male_228.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_228.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.006.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_229.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.006.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_229.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.006.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.007.tres:3 - ext_resource, invalid UID: uid://1qovacgnbrgh - using text path instead: res://experiment/male/male_265.png
ERROR:     at:  Attempt to disconnect a nonexistent connection from 'GeneralSkeleton:<Skeleton3D#1901814935095>'. Signal: 'bone_pose_changed', callable: 'BoneAttachment3D::on_bone_pose_update'.
load (scene/resources/resource_format_text.cpp:448)
   at: (core/object/object.cpp:1327)
ERROR: Resource file not found: res://experiment/male/male_265.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.007.tres:4 - ext_resource, invalid UID: uid://b7chn6fjjm8fi - using text path instead: res://experiment/male/male_266.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_266.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.007.tres:5 - ext_resource, invalid UID: uid://bje6e6w27ynj4 - using text path instead: res://experiment/male/male_264.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_264.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.007.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_265.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.007.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_265.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.007.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.008.tres:3 - ext_resource, invalid UID: uid://bshwpkto1cg7s - using text path instead: res://experiment/male/male_323.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_323.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.008.tres:4 - ext_resource, invalid UID: uid://daexlvam5si4i - using text path instead: res://experiment/male/male_324.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_324.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.008.tres:5 - ext_resource, invalid UID: uid://iod6wd6pw640 - using text path instead: res://experiment/male/male_322.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_322.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.008.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_323.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.008.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_323.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.008.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.009.tres:3 - ext_resource, invalid UID: uid://jqdqtcgrbof8 - using text path instead: res://experiment/male/male_333.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_333.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.009.tres:4 - ext_resource, invalid UID: uid://ckfqsrxwxcvyo - using text path instead: res://experiment/male/male_334.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_334.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.009.tres:5 - ext_resource, invalid UID: uid://b3bfg8kxhnjnt - using text path instead: res://experiment/male/male_332.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_332.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.009.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_333.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.009.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_333.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.009.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.010.tres:3 - ext_resource, invalid UID: uid://duxgj3ibcf0lw - using text path instead: res://experiment/male/male_353.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_353.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.010.tres:4 - ext_resource, invalid UID: uid://b0dqoasnoendx - using text path instead: res://experiment/male/male_354.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_354.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.010.tres:5 - ext_resource, invalid UID: uid://cegxma0u4vbgl - using text path instead: res://experiment/male/male_352.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_352.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.010.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_353.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.010.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_353.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.010.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.011.tres:3 - ext_resource, invalid UID: uid://uvc83ybvvl8c - using text path instead: res://experiment/male/male_395.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_395.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.011.tres:4 - ext_resource, invalid UID: uid://bj61mfpoou5ij - using text path instead: res://experiment/male/male_396.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_396.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.011.tres:5 - ext_resource, invalid UID: uid://6m78s4pne4dt - using text path instead: res://experiment/male/male_394.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_394.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.011.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_395.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.011.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_395.png
   at: load (scene/resources/resource_format_text.cpp:735)
ERROR: Failed loading resource: res://systems/player/models/male/materials/Bottom.011.tres. Make sure resources have been imported by opening the project in the editor at least once.
   at: (core/io/resource_loader.cpp:222)
WARNING: res://systems/player/models/male/materials/Bottom.012.tres:3 - ext_resource, invalid UID: uid://bkrits7im6nk6 - using text path instead: res://experiment/male/male_513.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_513.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.012.tres:4 - ext_resource, invalid UID: uid://bam20jsb61f3t - using text path instead: res://experiment/male/male_514.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_514.png.
   at: (core/io/resource_loader.cpp:227)
WARNING: res://systems/player/models/male/materials/Bottom.012.tres:5 - ext_resource, invalid UID: uid://eukqwwbu32o8 - using text path instead: res://experiment/male/male_512.png
     at: load (scene/resources/resource_format_text.cpp:448)
ERROR: Resource file not found: res://experiment/male/male_512.png.
   at: (core/io/resource_loader.cpp:227)
ERROR: res://systems/player/models/male/materials/Bottom.012.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_513.png
   at: _parse_ext_resource (scene/resources/resource_format_text.cpp:174)
ERROR: res://systems/player/models/male/materials/Bottom.012.tres:12 - Parse Error: [ext_resource] referenced non-loaded resource at: res://experiment/male/male_513.png
   at: load (scene/resources/resource_format_text.cpp:735)
```
</Details>


### Steps to reproduce

1. create new project
2. import any gltf model and some script, texture material files
3. rearrange these folders into different folders/sub folders































### Minimal reproduction project

1. create new project
2. import any gltf model and some script, texture material files
3. rearrange these folders into different folders/sub folders