Blank screen when opening MagicaVoxel

[DawnRei]

Hello, I need to know what I did wrong.

First off, my OS is High Sierra (mac). I've just read that I need to extract some entire folder, but this is what I see.

I'm really confused here. Let me know if you have any questions.

[Kingson]

Same issue to me, needs any help, thanks!

[Kingson]

"If you get black screen on macOS Sierra, try this: extract the whole folder move "MagicaVoxel.app" outside the folder and then back to it" I followed the steps, but I still have the confounded issue.

[Kingson]

@DawnRei I found the solution，follow the below steps:

1. extract the whole folder (go to the "MagicaVoxel" applications folder)
2. move "MagicaVoxel-mac.app" outside the folder
3. move "MagicaVoxel-mac.app" back to the folder again

Thanks for the great App!

[stephanschubert]

Unfortunately these steps aren't working for me. I'm using macOS High Sierra 10.13.3 (17D47).

[stephanschubert]

What works for me is:

• Right-click on MagicaVoxel.app
• Choose Show package contents
• Navigate to Contents > MacOS
• Open MagicaVoxel there

hth

[Shadowturtle]

@jazen @Kingson @DawnRei I need your help! i tested all your ways, but nothing works. @jazen your way was´t also useful What could be the mistake??

[stephanschubert]

@Shadowturtle Which OSX are you on?

[JohnSlaughter]

You get a black screen because the Mac has quarantined the app bundle.

Open a Terminal window and type cd and a space, then drag and drop the folder you just extracted in the terminal and press Return. You should now be in the same folder as the MagicaVoxel app.

Type ls -l@ in the Terminal and hit Return and you'll see that the app has a quarantine flag on it:

drwxr-xr-x@  3 jslaught  staff   96 Nov 22 15:32 MagicaVoxel.app
    com.apple.quarantine     57 

You can remove the quarantine flag by running the following command in the Terminal:

xattr -d com.apple.quarantine MagicaVoxel.app

The app should now launch just fine.

[JohnSlaughter]

Or just download this script, place the zip file in the same folder as the app, and double-click to unzip, then double-click the script. It should fix the app unless the script itself gets quarantined. Your mileage may vary...

Shell command to remove quarantine

[EDIT] Script works, but needs to be launched the same way the app does, due to code signing. So CTRL-click the script, and select Open to run it.

[JohnSlaughter]

The contents of that script:

#!/bin/bash
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
xattr -d com.apple.quarantine "$DIR/MagicaVoxel.app"

[SHADOWELITE7]

This should be closed It was already solved because of a graphics card thing

[bdsexton]

This should be closed It was already solved because of a graphics card thing

In what version? Does the graphics card thing you mentioned somehow relate to quarantines?

On November 26, 2018 a newly downloaded copy of MagicVoxel 0.99.2 opened with an empty black window under macOS 10.14.1 on my 2015 MacBook Pro.

[bdsexton]

You can remove the quarantine flag by running the following command in the Terminal:

xattr -d com.apple.quarantine MagicaVoxel.app

If you wish to remove the quarantine attribute from all of the MagicaVoxel files you can do so by running the command @JohnSlaughter mentioned on the containing directory with the "r" flag (for recursive). For example, if MagicaVoxel.app is inside a folder named "MagicaVoxel-0.99.2-alpha-mac" then the command would be as follows:

xattr -dr com.apple.quarantine MagicaVoxel-0.99.2-alpha-mac

[CriticalUpdate]

@stephanschubert, @JohnSlaughter, and @bdsexton : the real MVPs

All these months later and you guys saved me so much time and frustration.

[JohnSlaughter]

If you wish to remove the quarantine attribute from all of the MagicaVoxel files you can do so by running the command @JohnSlaughter mentioned on the containing directory with the "r" flag (for recursive). For example, if MagicaVoxel.app is inside a folder named "MagicaVoxel-0.99.2-alpha-mac" then the command would be as follows:

xattr -dr com.apple.quarantine MagicaVoxel-0.99.2-alpha-mac

I didn’t realize there was a recursive flag for that. Even easier now. Just type xattr -dr com.apple.quarantine in the Terminal and then drag your entire MagicaVoxel folder into the Terminal to find the path to it and press Enter.

[stevenjparrett]

@JohnSlaughter M

y one comes up with this..

[JohnSlaughter]

Looks like your inside the bundle you’re trying to access. Type “cd ../“ first. Then run that command again.

[lronking]

hi，just rename the folder, delete "-0'.

[bodinsamuel]

Thanks 🙏 still applicable for 0.99.4.2

xattr -dr com.apple.quarantine MagicaVoxel-0.99.4.2-alpha-macos/

[nftchance]

This should not be closed.

Circumstances:

• Happening on MagicaVoxel 0.99.4.2 on MacOS Catalina Version 10.15.1.

Solution:

• Removing the quarantine fixed the issue as suggested by @JohnSlaughter.

[pulsaronline]

Thanks to everyone, it works!

[jwpjrdev]

Works very well, I'm extremely thankful for the help.

[endel]

If you install the MagicaVoxel under your user's Application's folder instead of the system Application's folder, it just works.

e.g. use /Users/yourusername/Applications instead of /Applications

[CriticalUpdate]

@DawnRei I found the solution，follow the below steps:

1. extract the whole folder (go to the "MagicaVoxel" applications folder)
2. move "MagicaVoxel-mac.app" outside the folder
3. move "MagicaVoxel-mac.app" back to the folder again

Thanks for the great App!

Still needed this in 2020 with Big Sur and it worked great. Thanks!

[amandalouparker]

You get a black screen because the Mac has quarantined the app bundle.

Open a Terminal window and type cd and a space, then drag and drop the folder you just extracted in the terminal and press Return. You should now be in the same folder as the MagicaVoxel app.

Type ls -l@ in the Terminal and hit Return and you'll see that the app has a quarantine flag on it:

drwxr-xr-x@  3 jslaught  staff   96 Nov 22 15:32 MagicaVoxel.app
  com.apple.quarantine     57 

You can remove the quarantine flag by running the following command in the Terminal:

xattr -d com.apple.quarantine MagicaVoxel.app

The app should now launch just fine.

This worked for me on Mac OS 10.15.7 the moving in and out of folders did not.

[jwpjrdev]

That's super informative. I will keep that in mind!

On Feb 8 2021, at 5:48 pm, AL Parker notifications@github.com wrote:

You get a black screen because the Mac has quarantined the app bundle. Open a Terminal window and type cd and a space, then drag and drop the folder you just extracted in the terminal and press Return. You should now be in the same folder as the MagicaVoxel app. Type ls -l@ in the Terminal and hit Return and you'll see that the app has a quarantine flag on it: drwxr-xr-x@ 3 jslaught staff 96 Nov 22 15:32 MagicaVoxel.app com.apple.quarantine 57 You can remove the quarantine flag by running the following command in the Terminal: xattr -d com.apple.quarantine MagicaVoxel.app The app should now launch just fine. This worked for me on Mac OS 10.15.7 the moving in and out of folders did not.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub (https://github.com/ephtracy/ephtracy.github.io/issues/32#issuecomment-775515431), or unsubscribe (https://github.com/notifications/unsubscribe-auth/AJJZWYXPOYS7BYKTUH7UZKLS6BS5TANCNFSM4EJ7SOIA).

[jwpjrdev]

Now that I look at this again, what caused the Mac to quarantine the app? What does that even mean?

On Tue, Feb 9, 2021 at 8:36 AM Joshua Price jpric2024@olemiss.k12.in.us wrote:

That's super informative. I will keep that in mind!

On Feb 8 2021, at 5:48 pm, AL Parker notifications@github.com wrote:

You get a black screen because the Mac has quarantined the app bundle.

Open a Terminal window and type cd and a space, then drag and drop the folder you just extracted in the terminal and press Return. You should now be in the same folder as the MagicaVoxel app.

Type ls -l@ in the Terminal and hit Return and you'll see that the app has a quarantine flag on it:

drwxr-xr-x@ 3 jslaught staff 96 Nov 22 15:32 MagicaVoxel.app com.apple.quarantine 57

You can remove the quarantine flag by running the following command in the Terminal:

xattr -d com.apple.quarantine MagicaVoxel.app

The app should now launch just fine.

This worked for me on Mac OS 10.15.7 the moving in and out of folders did not.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/ephtracy/ephtracy.github.io/issues/32#issuecomment-775515431, or unsubscribe https://github.com/notifications/unsubscribe-auth/AJJZWYXPOYS7BYKTUH7UZKLS6BS5TANCNFSM4EJ7SOIA .

-- Joshua Price

[JohnSlaughter]

It’s the default behavior for downloaded applications that are not signed. You (normally) have to acknowledge them at launch and all good, but something about the way this app presents itself to the OS prevents that from happening.

On Feb 25, 2021, at 2:13 PM, Joshua P. notifications@github.com wrote:

 Now that I look at this again, what caused the Mac to quarantine the app? What does that even mean?

On Tue, Feb 9, 2021 at 8:36 AM Joshua Price jpric2024@olemiss.k12.in.us wrote:

That's super informative. I will keep that in mind!

On Feb 8 2021, at 5:48 pm, AL Parker notifications@github.com wrote:

You get a black screen because the Mac has quarantined the app bundle.

Open a Terminal window and type cd and a space, then drag and drop the folder you just extracted in the terminal and press Return. You should now be in the same folder as the MagicaVoxel app.

Type ls -l@ in the Terminal and hit Return and you'll see that the app has a quarantine flag on it:

drwxr-xr-x@ 3 jslaught staff 96 Nov 22 15:32 MagicaVoxel.app com.apple.quarantine 57

You can remove the quarantine flag by running the following command in the Terminal:

xattr -d com.apple.quarantine MagicaVoxel.app

The app should now launch just fine.

This worked for me on Mac OS 10.15.7 the moving in and out of folders did not.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/ephtracy/ephtracy.github.io/issues/32#issuecomment-775515431, or unsubscribe https://github.com/notifications/unsubscribe-auth/AJJZWYXPOYS7BYKTUH7UZKLS6BS5TANCNFSM4EJ7SOIA .

-- Joshua Price — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe.

[jwpjrdev]

Huh. Interesting. Thanks for the explanation.

On Feb 25 2021, at 4:32 pm, John Slaughter notifications@github.com wrote:

It’s the default behavior for downloaded applications that are not signed. You (normally) have to acknowledge them at launch and all good, but something about the way this app presents itself to the OS prevents that from happening.

On Feb 25, 2021, at 2:13 PM, Joshua P. notifications@github.com wrote:

 Now that I look at this again, what caused the Mac to quarantine the app? What does that even mean?

On Tue, Feb 9, 2021 at 8:36 AM Joshua Price jpric2024@olemiss.k12.in.us wrote:

That's super informative. I will keep that in mind!

On Feb 8 2021, at 5:48 pm, AL Parker notifications@github.com wrote:

You get a black screen because the Mac has quarantined the app bundle.

Open a Terminal window and type cd and a space, then drag and drop the folder you just extracted in the terminal and press Return. You should now be in the same folder as the MagicaVoxel app.

Type ls -l@ in the Terminal and hit Return and you'll see that the app has a quarantine flag on it:

drwxr-xr-x@ 3 jslaught staff 96 Nov 22 15:32 MagicaVoxel.app com.apple.quarantine 57

You can remove the quarantine flag by running the following command in the Terminal:

xattr -d com.apple.quarantine MagicaVoxel.app

The app should now launch just fine.

This worked for me on Mac OS 10.15.7 the moving in and out of folders did not.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/ephtracy/ephtracy.github.io/issues/32#issuecomment-775515431, or unsubscribe https://github.com/notifications/unsubscribe-auth/AJJZWYXPOYS7BYKTUH7UZKLS6BS5TANCNFSM4EJ7SOIA .

-- Joshua Price — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe. — You are receiving this because you commented. Reply to this email directly, view it on GitHub (https://github.com/ephtracy/ephtracy.github.io/issues/32#issuecomment-786242095), or unsubscribe (https://github.com/notifications/unsubscribe-auth/AJJZWYSLLBPJRBHPKIBIWYLTA26YTANCNFSM4EJ7SOIA).

[CyberSkull]

Code signing should fix this problem.