MAC CCleaner Install 'Damaged'?

[Dechief4]

When trying to install the latest version of CCleaner for MAC, I get an error message stating the app is damaged and it should be moved to trash. It will not complete the install.  I have tried to download/re-download and install the file over the course of several days, with the same result.  Any ideas?

[hazelnut]

What version of OS are you using and where are you getting the CCleaner install from?

[Dechief4]

I downloaded from ccleaner.com and I'm runing MacOS Catalina 10.15.6.  To anticipate a follow-on quesiton - the last time I attempted a downlaod and install was right before I posted this reply.  I've attached a screenshot of the error being received. 

[nukecad]

Apparently that error is quite common with Mac's, and fairly easily fixed:

https://blog.verslu.is/development/appnamis-damaged-and-cant-be-opened-you-should-move-it-to-the-bin/

[Dechief4]

Thanks, nukecad... That worked, but FWIW, the referred article is very poorly written and is most certainly not written for novice or semi-novice users.

[nukecad]

Yes, sorry about that.

It was one of the first that I dropped on, and TBH the others I read were even worse.

At least it worked for you which is always good news.

[Dechief4]

No worries - I am impressed you were able to even find the article.   I did quite a bit of searching on my own and I got no hits on my particular issue at all.  So, as you said, at least it worked...  Odd error, regardless.  Thanks again!

Edited August 22, 2020 by Dechief4

[Dechief4]

For others who come across this post, you need to:

1) Open terminal
2) Sudo in as your current user - assuming you have admin rights ( 'sudo <username>', then enter your password). 
3) If you are working specifically with the CCleaner app,  run the command 'xattr -d -r com.apple.quarantine /Applications/ccleaner.app'  (This should delete (-d) the com.apple.quarantine atribute recursively (-r) from the file specified - and in all actuality, unless you are doing this on an enitre folder rather than an individual file. the -r may not be required, but it doesn't hurt.)

[nukecad]

22 minutes ago, Dechief4 said:

No worries - I am impressed you were able to even find the article.   I did quite a bit of searching on my own and I got no hits on my particular issue at all. 

May be preaching to those who already know but - When searching for something like that then try putting your search string in double quotes, eg:
"is damaged and can't be opened"
will get more focused results than:
is damaged and can't be opened