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Tool RPGM RPG Maker MacOS/OSX Launcher [v3.3.2]

What type of Mac do you use?


  • Total voters
    50

m4kro

Active Member
Feb 7, 2020
555
573
216
Hi m4kro , does this tool work on games made with PGMMV? I'm trying to play Princess Reconquista. At first I thought this game was made with RPGM-MV. But after selecting the game folder with RPG Maker Launcher, I'm getting the error "No valid game file (package.json, Game.ini, or RTP_RT) found in the selected folder."
This tool works with RPG Maker games, they have the blue RPGM tag at the top of the page. Princess Reconquista has a green Others tag, meaning it is not a RPG Maker game.
 
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Toxilu

New Member
Nov 26, 2025
3
0
1
Hi! May I get some help with this error?



NWJS log:

[1126/224427.944115:ERROR:third_party/zlib/google/zip.cc:332] Cannot open '/Users/nicknaing/Library/Application Support/RPGM-Launcher/v0.106.0/nwjs.app/Contents/Resources/app.nw': FILE_ERROR_NOT_FOUND: No such file or directory (2)

I try giving permission and still doesnt work. I probably did it wrong which is likely. Please help thanks.
 

m4kro

Active Member
Feb 7, 2020
555
573
216
Hi! May I get some help with this error?



NWJS log:

[1126/224427.944115:ERROR:third_party/zlib/google/zip.cc:332] Cannot open '/Users/nicknaing/Library/Application Support/RPGM-Launcher/v0.106.0/nwjs.app/Contents/Resources/app.nw': FILE_ERROR_NOT_FOUND: No such file or directory (2)

I try giving permission and still doesnt work. I probably did it wrong which is likely. Please help thanks.
please post the full log, the missing app.nw error is normal. also which game are you trying to play
 

Toxilu

New Member
Nov 26, 2025
3
0
1
2025-11-27 17:28:26,068 - INFO - Launcher version: 3.3.2

2025-11-27 17:28:26,068 - INFO - MacOS version: 15.7.1

2025-11-27 17:28:26,068 - INFO - MacOS architecture: arm64

2025-11-27 17:31:44,498 - INFO - Selected folder path: /Users/nicknaing/Desktop/Rpg Games/CiC_0.56.3_Windows

2025-11-27 17:31:44,505 - INFO - Updating package.json with temporary name 'tempname'.

2025-11-27 17:31:44,505 - INFO - Clearing tempname folder in Application Support.

2025-11-27 17:31:44,525 - INFO - tempname folder cleared successfully.

2025-11-27 17:31:44,525 - INFO - Protection enabled, adding bg-script entry to package.json.

2025-11-27 17:31:44,525 - INFO - JSON file updated successfully.

2025-11-27 17:31:44,525 - INFO - Package.json found in the selected folder.

2025-11-27 17:31:46,718 - INFO - Setting you as owner of the game folder and permissions to 700 (You can read, write, execute).

2025-11-27 17:31:46,983 - INFO - Changed ownership of the folder to the current user.

2025-11-27 17:31:47,092 - INFO - Changed permissions of the folder to 700.

2025-11-27 17:31:47,092 - INFO - package.json already has a valid name: tempname

2025-11-27 17:31:47,092 - INFO - Protection enabled, adding bg-script entry to package.json.

2025-11-27 17:31:47,092 - INFO - JSON file updated successfully.

2025-11-27 17:31:47,092 - INFO - Launching game using NWJS.

2025-11-27 17:31:47,092 - INFO - The 'www' folder exists in the selected folder, likely RPG MV.

2025-11-27 17:31:47,093 - INFO - main.js written successfully.

2025-11-27 17:31:47,093 - INFO - RPG MV main.js has been patched with cheat menu.

2025-11-27 17:31:47,094 - INFO - Cheat_Menu.js and Cheat_Menu.css copied to /Users/nicknaing/Desktop/Rpg Games/CiC_0.56.3_Windows/www/js/plugins

2025-11-27 17:31:47,096 - INFO - Protection scripts added to the game folder.

2025-11-27 17:31:47,096 - INFO - Cleaning up nwjs temporary files.

2025-11-27 17:31:47,099 - INFO - Game launched using NWJS version v0.106.0.

2025-11-27 17:31:47,099 - INFO - NWJS log:

[1127/173147.216345:ERROR:third_party/zlib/google/zip.cc:332] Cannot open '/Users/nicknaing/Library/Application Support/RPGM-Launcher/v0.106.0/nwjs.app/Contents/Resources/app.nw': FILE_ERROR_NOT_FOUND: No such file or directory (2)

[19954:24593359:1127/173448.052192:ERROR:services/on_device_model/ml/gpu_blocklist.cc:117] Unable to get gpu adapter

[19867:24590739:1127/173448.052950:ERROR:services/on_device_model/public/cpp/service_client.cc:36] Unexpected on_device_model service disconnect: Error loading backend.
 

m4kro

Active Member
Feb 7, 2020
555
573
216
2025-11-27 17:28:26,068 - INFO - Launcher version: 3.3.2

2025-11-27 17:28:26,068 - INFO - MacOS version: 15.7.1

2025-11-27 17:28:26,068 - INFO - MacOS architecture: arm64

2025-11-27 17:31:44,498 - INFO - Selected folder path: /Users/nicknaing/Desktop/Rpg Games/CiC_0.56.3_Windows

2025-11-27 17:31:44,505 - INFO - Updating package.json with temporary name 'tempname'.

2025-11-27 17:31:44,505 - INFO - Clearing tempname folder in Application Support.

2025-11-27 17:31:44,525 - INFO - tempname folder cleared successfully.

2025-11-27 17:31:44,525 - INFO - Protection enabled, adding bg-script entry to package.json.

2025-11-27 17:31:44,525 - INFO - JSON file updated successfully.

2025-11-27 17:31:44,525 - INFO - Package.json found in the selected folder.

2025-11-27 17:31:46,718 - INFO - Setting you as owner of the game folder and permissions to 700 (You can read, write, execute).

2025-11-27 17:31:46,983 - INFO - Changed ownership of the folder to the current user.

2025-11-27 17:31:47,092 - INFO - Changed permissions of the folder to 700.

2025-11-27 17:31:47,092 - INFO - package.json already has a valid name: tempname

2025-11-27 17:31:47,092 - INFO - Protection enabled, adding bg-script entry to package.json.

2025-11-27 17:31:47,092 - INFO - JSON file updated successfully.

2025-11-27 17:31:47,092 - INFO - Launching game using NWJS.

2025-11-27 17:31:47,092 - INFO - The 'www' folder exists in the selected folder, likely RPG MV.

2025-11-27 17:31:47,093 - INFO - main.js written successfully.

2025-11-27 17:31:47,093 - INFO - RPG MV main.js has been patched with cheat menu.

2025-11-27 17:31:47,094 - INFO - Cheat_Menu.js and Cheat_Menu.css copied to /Users/nicknaing/Desktop/Rpg Games/CiC_0.56.3_Windows/www/js/plugins

2025-11-27 17:31:47,096 - INFO - Protection scripts added to the game folder.

2025-11-27 17:31:47,096 - INFO - Cleaning up nwjs temporary files.

2025-11-27 17:31:47,099 - INFO - Game launched using NWJS version v0.106.0.

2025-11-27 17:31:47,099 - INFO - NWJS log:

[1127/173147.216345:ERROR:third_party/zlib/google/zip.cc:332] Cannot open '/Users/nicknaing/Library/Application Support/RPGM-Launcher/v0.106.0/nwjs.app/Contents/Resources/app.nw': FILE_ERROR_NOT_FOUND: No such file or directory (2)

[19954:24593359:1127/173448.052192:ERROR:services/on_device_model/ml/gpu_blocklist.cc:117] Unable to get gpu adapter

[19867:24590739:1127/173448.052950:ERROR:services/on_device_model/public/cpp/service_client.cc:36] Unexpected on_device_model service disconnect: Error loading backend.
Assuming the game is Crossdressing in Camelot

Try this:


They also have dedicated mac build, why aren't you using that?
 

Toxilu

New Member
Nov 26, 2025
3
0
1
Ah didn't realize thanks for le help. Also Just remembered Mac version isnt playable on my mac since it is not supported by RPG MV and I don't really wanna go back to the old versions. I tried the new file you gave me and got this error instead. Sorry for the trouble.



2025-11-29 12:16:47,037 - INFO - Launcher version: 3.3.2

2025-11-29 12:16:47,037 - INFO - MacOS version: 15.7.1

2025-11-29 12:16:47,037 - INFO - MacOS architecture: arm64

2025-11-29 12:16:53,751 - INFO - Setting you as owner of the game folder and permissions to 700 (You can read, write, execute).

2025-11-29 12:16:54,131 - INFO - Changed ownership of the folder to the current user.

2025-11-29 12:16:54,145 - INFO - Changed permissions of the folder to 700.

2025-11-29 12:16:54,147 - INFO - package.json already has a valid name: tempname

2025-11-29 12:16:54,181 - INFO - tempname folder cleared successfully.

2025-11-29 12:16:54,182 - INFO - Protection enabled, adding bg-script entry to package.json.

2025-11-29 12:16:54,182 - INFO - JSON file updated successfully.

2025-11-29 12:16:54,182 - INFO - Launching game using NWJS.

2025-11-29 12:16:54,182 - INFO - The 'www' folder does not exist in the selected folder, likely RPG MZ.

2025-11-29 12:16:54,182 - ERROR - scriptUrls array not found in main.js.

2025-11-29 12:16:54,182 - INFO - RPG MZ main.js has already been patched with cheat menu.

2025-11-29 12:16:54,184 - INFO - Protection scripts added to the game folder.

2025-11-29 12:16:54,184 - INFO - Cleaning up nwjs temporary files.

2025-11-29 12:16:54,187 - INFO - Game launched using NWJS version v0.106.0.

2025-11-29 12:16:54,187 - INFO - NWJS log:

[1129/121654.281947:ERROR:third_party/zlib/google/zip.cc:332] Cannot open '/Users/nicknaing/Library/Application Support/RPGM-Launcher/v0.106.0/nwjs.app/Contents/Resources/app.nw': FILE_ERROR_NOT_FOUND: No such file or directory (2)
 
Last edited:

m4kro

Active Member
Feb 7, 2020
555
573
216
Ah didn't realize thanks for le help. Also Just remembered Mac version isnt playable on my mac since it is not supported by RPG MV and I don't really wanna go back to the old versions. I tried the new file you gave me and got this error instead. Sorry for the trouble.



2025-11-29 12:16:47,037 - INFO - Launcher version: 3.3.2

2025-11-29 12:16:47,037 - INFO - MacOS version: 15.7.1

2025-11-29 12:16:47,037 - INFO - MacOS architecture: arm64

2025-11-29 12:16:53,751 - INFO - Setting you as owner of the game folder and permissions to 700 (You can read, write, execute).

2025-11-29 12:16:54,131 - INFO - Changed ownership of the folder to the current user.

2025-11-29 12:16:54,145 - INFO - Changed permissions of the folder to 700.

2025-11-29 12:16:54,147 - INFO - package.json already has a valid name: tempname

2025-11-29 12:16:54,181 - INFO - tempname folder cleared successfully.

2025-11-29 12:16:54,182 - INFO - Protection enabled, adding bg-script entry to package.json.

2025-11-29 12:16:54,182 - INFO - JSON file updated successfully.

2025-11-29 12:16:54,182 - INFO - Launching game using NWJS.

2025-11-29 12:16:54,182 - INFO - The 'www' folder does not exist in the selected folder, likely RPG MZ.

2025-11-29 12:16:54,182 - ERROR - scriptUrls array not found in main.js.

2025-11-29 12:16:54,182 - INFO - RPG MZ main.js has already been patched with cheat menu.

2025-11-29 12:16:54,184 - INFO - Protection scripts added to the game folder.

2025-11-29 12:16:54,184 - INFO - Cleaning up nwjs temporary files.

2025-11-29 12:16:54,187 - INFO - Game launched using NWJS version v0.106.0.

2025-11-29 12:16:54,187 - INFO - NWJS log:

[1129/121654.281947:ERROR:third_party/zlib/google/zip.cc:332] Cannot open '/Users/nicknaing/Library/Application Support/RPGM-Launcher/v0.106.0/nwjs.app/Contents/Resources/app.nw': FILE_ERROR_NOT_FOUND: No such file or directory (2)
There doesn't seem to be any issues just from the log output. What does the nwjs window show. Please post a screenshot here.
 

mynameisnotje

Newbie
Nov 27, 2019
22
6
126
Any help working out this error would be appreciated – I'm currently trying to run Black Souls (a VXAce game) using RPG Maker Launcher. While the game initially loads fine and I'm able to play through most of the prologue, as soon as it attempts to load a specific graphic (I believe of a dragon) I get the following error message:

Script 'Cache' line 106: Errno::ENOENT occurred.
No such file or directory - Graphics/Characters/$ヘルカイザー

This is strange to me because, when I run the game using Crossover / Wine, no such error occurs (though both have issues with processing normal movement). Any ideas as to why this may be happening in the launcher or of potential fixes? If this would be better directed to MKXP-Z folks please let me know.