OS X 10.12 and 10.13 Installation Workaround for AIJ

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OS X 10.12 and 10.13 Installation Workaround for AIJ

This post was updated on .
AIJ installation is not currently directly compatible with OS X 10.12 and 10.13. There are currently two workarounds.

The new and simplest installation workaround requires a command to be executed in a Terminal window:

- Download the installation file.
- Unzip the installation file and move the AstroImageJ folder to the Applications folder
- Run this command in Terminal:
xattr -r -d com.apple.quarantine /Applications/AstroImageJ

That's it! AIJ should now start up normally.

****normally stop here****

The original workaround that is a bit more complicated and requires superuser login is below:
(There is no need to run both workarounds)

1) If you haven't already, Install AIJ by unzipping the install file and dragging the resulting AstroImageJ folder to the Applications folder.

2) Open the Terminal app from the /Applications/Utilities/ folder and then enter the following command syntax: sudo spctl --master-disable
3) Hit return and authenticate with an admin password.
4) Relaunch System Preferences and go to “Security & Privacy” and the “General” tab.
5) You will now see the “Anywhere” option under “Allow apps downloaded from:”. Select this option.
6) Make a copy of /Applications/AstroImageJ/AstroImageJ64.app on the desktop. An easy way to do that is hold down the alt key while dragging AstroImageJ64.app from the /Applications/AstroImageJ folder to the desktop.
7) Delete the original copy of AstroImageJ64.app that is still in the /Applications/AstroImageJ folder.
8) Drag the copy of AstroImageJ64.app from the desktop back to the /Applications/AstroImageJ folder.
9) Start AIJ and set up your memory settings as needed.
10) Close AIJ.
11) After running AIJ the first time, enter the following command syntax to reenable GateKeeper (AIJ will continue to work normally): sudo spctl --master-enable