cannot calculate MAC address: hv_vm_create unknown error -85

Problems with the Mac OS X version of XAMPP, questions, comments, and anything related.

cannot calculate MAC address: hv_vm_create unknown error -85

Postby arodriguezl » 04. May 2021 04:58

Hello,
I just tried to start Xampp normally on my MacOs Big Sur 11.3 and it didn't work.
It showed the following message when clicking on "View details" of the Error starting "XAMPP" stack: cannot calculate MAC address: hv_vm_create unknown error -85377023.

Does anyone know what is going on and how to resolve it? :cry: Thanks

PS: this happened after upgrading the operating system to the above version.
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby Gazb41 » 04. May 2021 10:26

I'm having the exact same problem after installing the latest Mac OS update!
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby the_natalie » 04. May 2021 22:01

I have the same problem and I'm on a deadline!!! :shock:
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby Altrea » 04. May 2021 23:41

This is probably a related solution for this problem:
https://community.bitnami.com/t/bitnami ... ck/94776/9
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby bogdan » 05. May 2021 13:31

I have the same problem, who can help?
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby Altrea » 05. May 2021 18:07

bogdan wrote:I have the same problem, who can help?

Did you read my reply?
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby rudva » 07. May 2021 17:16

By the way, before anything else...

Where are the htdocs and datadabase files located?

This problem is frequent with XAMPP, every time Apple update their OS xampp crashes, last time I solve it by reinstalling the last XAMPP version, gladly I had a backup and access to the files to restore, but where is those files located in my computer? Because If the app is not running and the file system is not mounted then there is no files...

Somebody knows?
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby Altrea » 07. May 2021 18:21

rudva wrote:Where are the htdocs and datadabase files located?

It's a virtualized environment, so it is typically hidden by your normal host paths unless you mounted them in the XAMPP stack manager. Everything is capsuled in ~/.bitnami/stackman/machines/xampp/

rudva wrote:This problem is frequent with XAMPP, every time Apple update their OS xampp crashes

This typically happens only to the XAMPP VM versions. Never heard any problems with the XAMPP for MacOS Installer versions.
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby rudva » 07. May 2021 18:49

Thanks Altrea,

But that means I can't just copy the HTTDOCS files or databases from my computer...right?

That's a good point, which one is better to install VM or the other?
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby Altrea » 07. May 2021 19:08

Because of the many issues and limitations i cannot recommend to use the VM version.
I don't know why Bitnami choose to promote the VM version as the primary one.
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby rudva » 07. May 2021 19:56

Ok, that's better for me.

You think is better to user the other version instead of VM too?

Because at this point I am considering to reinstall XAMPP, the new version again, but not the VM this way I can keep my files always on the computer.
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby wcamp » 08. May 2021 20:11

I have a similar problem after upgrading to Big Sur. Apache Web Server stops automatically and browsers tell me "Cannot connect to the server "localhost.'"

Q. How can I tell if my already installed XAMPP version (7.4.18-0) is "VM" or the other version? Is there an identifier?

Q. What URL should I use to download XAMPP for Mac in the "standard" version?
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby Altrea » 08. May 2021 20:22

wcamp wrote:Q. How can I tell if my already installed XAMPP version (7.4.18-0) is "VM" or the other version? Is there an identifier?

- Do you have a folder ~/.bitnami/stackman/machines/xampp/?
- Does your XAMPP control manager contains tabs for Network and Volumes?
- If you still have the downloaded dmg file for installation and this filename contains the word VM
Then you are using the VM version.

wcamp wrote:Q. What URL should I use to download XAMPP for Mac in the "standard" version?

https://www.apachefriends.org/download.html
The Installer versions have a much lesser file size and contain the word installer.
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby wcamp » 08. May 2021 22:04

I thank you, Altrea, for your prompt and helpful e-reply. here are my responses to your inquiries and comments:

-- I searched for ".bitnami" but find nothing in Mac's Finder. Neither did I find anything with the name "stackman."
-- Where do I find the "XAMPP control manager"?
-- The dmg file that I used doesn't have the "VM" identification, for which I'm thankful. However, I can't be sure that the downloaded file is the appropriate one. Please look at my first screenshot: It shows that I downloaded v. 7.4.18-0, but the second screenshot of the XAMPP.app icon states the version as being "1.0.3," not the recently downloaded "7.4.18-0" version. Is that the cause of my problem?
Screenshot 1: https://www.warrencampdesign.com/images/xampp-download-dmg.jpg
Screenshot 2: https://www.warrencampdesign.com/images/xampp-detailedAppsIcon.jpg

If that version difference is NOT the cause of my problem, might the following screenshots help you discover the problem?
Screenshot 3: Apache Web Server "stopped" in the manager: https://www.warrencampdesign.com/images/xampp-ApacheStopped.jpg
Screenshot 4: Browser error message (typical in three browsers): https://www.warrencampdesign.com/images/xampp-browserErrorMessage.jpg

I hope that my four screenshots provide the details that enable you to discover the problem.

Much appreciated, Altrea!
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Re: cannot calculate MAC address: hv_vm_create unknown error

Postby Altrea » 08. May 2021 22:37

So your screenshot shows that you do not use the VM version. You have installed the installer version.

I don't have a MAC on my own so i cannot provide much help. There must be an error:log from Apache anywhere in your /Applications/XAMPP/xamppfiles/ subfolders which can give some hints.

Maybe you have already an Apache server started on your system like MAMP or something similar.
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