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Error starting “WordPress” stack: Cannot calculate MAC Address hv_vm_create unknown error.   

Error starting “WordPress” stack: Cannot calculate MAC Address hv_vm_create unknown error  

Error starting “WordPress” stack: Cannot calculate MAC Address hv_vm_create unknown error.   

Are you getting this error?

In this tutorial, we are going to solve a problem one of our members from the technical team had to encounter while developing plugins for WordPress using bitnami.

Here is what the Error looks like :

Cannot calculate MAC Address hv_vm_create unknown error

 

If you are developing plugins for wordpress and using bitnami on your Mac big sur OS then you also might have faced this issue recently after the latest update of Mac OS. Let’s start by understanding the cause of the error and how we can fix it.

Cause of the error

Recently Apple has released macOS Big Sur 11.3 which is the latest update after macOS Big Sur 11.2. It offers many of the same features, and brings others to the Mac that were already enjoyed on iOS.

However this MAC OS Big Sur 11.3 update has caused many issues including that the developers aren’t able to work on the local environment.Which is why this error occurs:

Error starting “WordPress” stack: Cannot calculate MAC Address hv_vm_create unknown error

How to fix this

As of now the Bitnami team is still working on the new update to make it compatible with the Big Sur 11.3 version.

Hyper Kit

But you don’t need to worry as they have temporarily launched a hyper kit file to solve this issue. 

Note: Please note that this hyperkit is in testing mode so make sure to take a backup of existing projects & data inside the bitnami folder

Following are the steps to solve this problem:

Step 1: 

To solve this issue, open the terminal & run this command. This will create a backup of your current files. 

cp -rp ~/.bitnami ~/.bitnami.back
create a backup of applications command

Are you facing an issue with XAMPP?

If you are facing the similar issue with XAMPP Check out our article on how to resolve this issue – ERROR STARTING “XAMPP” STACK: CANNOT CALCULATE MAC ADDRESS HV_VM_CREATE UNKNOWN ERROR. “

Step 2: 

Download the new hyperkit library using the following command

cd /tmp

curl -LJO "https://downloads.bitnami.com/files/hyperkit/hyperkit-testing-20210430"
download the new hyperkit library command

Step 3:

Make sure that the md hash is matching by running the following command

md5 /tmp/hyperkit-testing-20210430

MD5 (/tmp/hyperkit-testing-20210430) = 37495adde6a3279dd7265904b85c3dc9

Note: Do not continue with the next step if the md5 checksum doesn’t match

Step 4: 

Replace your current hyperkit binary with the downloaded one

mv /tmp/hyperkit-testing-20210430 ~/.bitnami/stackman/helpers/hyperkit

chmod +x ~/.bitnami/stackman/helpers/hyperkit

Step:5 

Start the Bitnami OS X VM again and ensure you can access your application.

Note: If you get a security warning regarding the new hyperkit binary not being signed, go to Security under System Preferences and allow its execution. Restart the OS X VM if necessary.

Here is a link to the steps shared by bitnami team on their support forum question 

Conclusion

The steps we shared above don’t remove the data of the application so you do not need to perform any additional step to restore the information. We have explained how to create a backup just in case something went wrong  and now when you start the OS X VM after following the mentioned steps, you should have all the data in the application (unless you accidentally removed it). 

We hope you find this article helpful. Feel free to contact us if you need any help regarding this topic. Do let us know the topics you want us to cover in the comment section or reach out to us with your queries by clicking the contact form below.

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