![]() ![]() These are files that I've had for years and apps that were included in the operating system or are from a well trusted source. I am experiencing it when I double click on a file (any file) to open it using an associated app. Some cursory reading reveals that his seems to be related to the security setting for "Allow apps downloaded from:" and extended file attributes. I have recently updated to 12.2.1 and it does not appear to be fixed. As they continue to prioritize release of "shiny new" features for every OS update, they are leaving the core system to rot. ![]() There seems to be a cultural problem in the software development cycle at Apple. This is a critical issue and is not something that should happen with MacOS. The files are not damaged and can be opened on the original system running Monterey 12.1 with no issue. I have also seen this at the same time with a docx file. Then, I see "“filename.pdf” is damaged and can’t be opened. Additionally, I cannot open the original files when mounting the shared drive via the MacBook Pro 2021 system. You should move it to the Trash." This has happened with some but not all the files that were copied in this and also other directories. These files open with no issue on the other Mac, however, when I try to open them on the MacBook Pro 2021 with Monterey 12.2, I see errors like "“filename.pdf” is damaged and can’t be opened. Running 12.2, I have copied PDF files from another Mac (also running Monterey, but 12.1). So, use at your own risk.I don't have a solution for you right now, but I have seen the same issue. If you are just randomly downloading software and using this solution to bypass Gatekeeper, you will end up with a compromised system. You should only use this solution with Apps that you fully trust. Gatekeeper is there to protect your Mac from the malware that's ever increasing on the Internet. Once you edit that file and save it, you will be able to open it by Control clicking (or right clicking) the App and selecting open. (My preference is to go with TextWrangler) Opening the file. plist files or the Property List Editor available in XCode. NOTE: You will need a program like TextWrangler (free) to open. Where is the ist file located? It's located in the root folder of your App and will be prefaced with the App Name: If you set the following key values in ist, the App will revert to an "Unsigned App" and allow you to install it. The solution to this is in the ist found inside the app. This message will appear no matter the Gatekeeper option chosen. – The app has been altered by something other than the developer. Gatekeeper options are found in Apple menu > System Preferences… > Security & Privacy > General tab (El Capitan shown below) under the header "Allow applications downloaded from:"Įven with Gatekeeper turned off, if you get the "Damaged App" message, you still won't be able to open the file The problem that you are running into is that Gatekeeper is trying to protect you from malware and not only doesn't recognize the developer "signature" of the App you downloaded it "sees" the file was modified by someone/something other than the developer.
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