Mac Gatekeeper Error

A number of my books, such as C++ All-In-One for Dummies, 3rd EditionBeginning Programming with Python For Dummies, Python for Data Science for Dummies, and Machine Learning for Dummies ask readers to download an IDE or other code and install it on their Mac systems. The problem is that the Mac system won’t always cooperate. For example, you might see an error dialog like the one shown for Code::Blocks:

The Gatekeeper error tells you that it won't allow you to install software from unknown publishers.
Your Mac won’t let you install software.

The problem is one of permissions. The default permissions set for newer Mac systems restrict you to getting your apps from the Mac App Store or from vendors who have signed their files. Fortunately, you can overcome this problem either temporarily or permanently, depending on how you want to use your Mac. The Fix the “App can’t be opened because it is from an unidentified developer” Error in Mac OS X blog post provides you with illustrated, step-by-step directions to perform the task using either method. Let me know if you encounter any other problems getting your Mac to install the software required to use my books at John@JohnMuellerBooks.com.

 

Author: John

John Mueller is a freelance author and technical editor. He has writing in his blood, having produced 99 books and over 600 articles to date. The topics range from networking to artificial intelligence and from database management to heads-down programming. Some of his current books include a Web security book, discussions of how to manage big data using data science, a Windows command -line reference, and a book that shows how to build your own custom PC. His technical editing skills have helped over more than 67 authors refine the content of their manuscripts. John has provided technical editing services to both Data Based Advisor and Coast Compute magazines. He has also contributed articles to magazines such as Software Quality Connection, DevSource, InformIT, SQL Server Professional, Visual C++ Developer, Hard Core Visual Basic, asp.netPRO, Software Test and Performance, and Visual Basic Developer. Be sure to read John’s blog at http://blog.johnmuellerbooks.com/.

When John isn’t working at the computer, you can find him outside in the garden, cutting wood, or generally enjoying nature. John also likes making wine and knitting. When not occupied with anything else, he makes glycerin soap and candles, which comes in handy for gift baskets. You can reach John on the Internet at John@JohnMuellerBooks.com. John is also setting up a website at http://www.johnmuellerbooks.com/. Feel free to take a look and make suggestions on how he can improve it.