Category: OsX

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Open Source OsX RabbitMq Solutions Web

RabbitMQ Server – Issue with High Sierra – Mac OS

macOS RabbitMq

After updating to High Sierra, I faced issues with starting rabbitmq-server.  The command gave the following error:

RabbitMQ 3.6.3. Copyright (C) 2007-2016 Pivotal Software, Inc.
## ## Licensed under the MPL. See http://www.rabbitmq.com/
## ##
########## Logs: /usr/local/var/log/rabbitmq/rabbit@localhost.log
###### ## /usr/local/var/log/rabbitmq/rabbit@localhost-sasl.log
##########
Starting broker...
completed with 10 plugins.
Assertion failed: (ctx), function digest_update, file /BuildRoot/Library/Caches/com.apple.xbs/Sources/boringssl/boringssl-109.20.5/apple/crypto/digests.c, line 49.
/usr/local/sbin/rabbitmq-server: line 236: 2681 Abort trap: 6 start_rabbitmq_server "$@"

I narrowed down the issue to a problem with Home Brew. I had installed rabbitmq via HomeBrew a while back and with the changes in the operating system rabbitmq was failing to start.

Running the following command gave the below error message:

$ brew update
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
Error: /usr/local is not writable. You should change the ownership
and permissions of /usr/local back to your user account:
sudo chown -R $(whoami) /usr/local

How to fix RabbitMQ Server – Issue with High Sierra

  1. Reinstall Home Brew using the following command:
    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
  2. Then run:
    brew update
  3. Then run:
    brew reinstall rabbitmq
  4. Once done you must  be able to run rabbitmq-server to get the server up and running.
Categories
Laptop OsX Solutions

Open Apps From Unidentified Developers in Mac OS Sierra

Here is How to open applications that can’t be opened as they are from an ‘unidentified developer’ in Mac OS Sierra

How to Open Applications From Unidentified Developers in Mac OS Sierra

Opening a Specific App:

If you would like to allow just one specific application to run, use the following steps:

  1. Hold down the Control key and click the application icon.
  2. A contextual menu should appear – here Choose ‘Open’.
  3. A popup will appear asking you to confirm this action – Click the Open button.

Once you open the App is opened its stored as an exception in the settings and you can open it in future directly by double clicking it.

Allowing all Apps to Open(Works with some versions of Sierra):

If you would like to allow all applications from unidentified developers to run, use the following steps:

  1. Click on the “Apple” menu on the top left of your screen
  2. Select “System Preferences” option from the menu
  3. Choose ‘Security & Privacy’ from the System Preferences menu.
  4. Select ‘General’ from the tabs at the top of the Security & Privacy page.
  5. Click the ‘Lock icon’ at the bottom left of the window.
  6. Enter your administrative username and password and click Unlock
  7. Select ‘Anywhere’ from list of places to allow downloaded applications from. If this option does not show up in the window then you will have use the first method with each app.
  8. A popup window will appear asking you to confirm your selection. Click the Allow From Anywhere button.
Categories
Laptop OsX

How To Take A ScreenShot on Mac

Mac Screenshot

You can capture a Screenshot of your entire screen or just a selected portion of it. The screenshot is automatically saved to your desktop.

How to take a screenshot of your entire screen

  1. Press Shift+Command (⌘)+3.
  2. The screenshot will be saved as a .png file on your desktop

How to take a screenshot of a selected portion of your screen

how to take screenshot in mac

  1. Press Shift+Command (⌘)+4. The pointer changes to a crosshair.
  2. Move the crosshair to where you want to start the screenshot, then click and drag to select an area.
    Note: While dragging the Crosshair, you can hold Shift, Option, or Space bar to change the way the selection moves
  3. When you have selected the area that you want, release your mouse or trackpad button. To cancel, press the Esc (Escape) key before you release the button.
  4. The screenshot will be saved as a .png file on your desktop
Categories
Laptop OsX

Maximize windows in OsX

The maximize button (top left – 3rd button to the right on the window) hides the top bar and dock automatically in OsX.  If you want to make a window cover the whole screen without covering the dock and top bar, use the following key combinations:

Option + (click on green button on top left) – This maximizes the window vertically, useful for some apps that dont require as much horizontal space

Shift + Option + (click on green button on top left) – This maximizes the window to cover both horizontal and vertical space