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macOS says “RTILA X is damaged and can’t be opened”? Your download is fine. It is a macOS security notice and it takes about 30 seconds to clear.

Show me the fix ↓
  • Apple Silicon (M1/M2/M3/M4): Native build
  • Intel Mac: Supported build
  • RAM: 4GB minimum recommended
  • Storage: 2GB free space

Apple Silicon (M1 / M2 / M3 / M4)

Download for Apple Silicon

Intel Mac

Download for Intel Mac

Not sure which chip your Mac has? Click the Apple menu, select About This Mac, and look at the chip or processor line. Apple Silicon shows M1, M2, M3 or M4. Intel shows an Intel Core processor.

After downloading, run the installer. RTILA X launches automatically.

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macOS users — read this

“RTILA X is damaged and can’t be opened”

Nothing is wrong with your download and your Mac is not broken. This is macOS Gatekeeper doing its job, and clearing it takes one line in Terminal.

Screenshot of the macOS alert reading: “RTILA X” is damaged and can’t be opened. You should move it to the Trash.
If this is the message you are seeing, the three steps below will clear it.

  1. Open Terminal

    Press ⌘ Command and Space at the same time. Type Terminal. Press Return. A window with a text prompt appears — that is Terminal.

  2. Copy the command that matches where RTILA is

    Only one of these will work, depending on where the app ended up. When in doubt, use the first one — and drag RTILA into your Applications folder beforehand.

    Most people want this one

    RTILA is in your Applications folder

    You dragged RTILA into Applications, or you can see it under Finder → Applications. If you have not moved it there yet, do that first: drag RTILA.app out of Downloads and drop it onto Applications. That is where macOS expects apps to live.

    xattr -cr /Applications/RTILA.app

    Still in Downloads

    RTILA is still in your Downloads folder

    You double-clicked the file straight from Downloads and never moved it anywhere else.

    xattr -cr ~/Downloads/RTILA.app

    Not sure where RTILA is? Use this instead — it always works

    1. In Terminal, type xattr -cr and then press the space bar once. Do not press Return yet.
    2. Open a Finder window and find the RTILA icon.
    3. Drag the RTILA icon from Finder straight into the Terminal window and let go. Terminal fills in the exact path for you — it looks something like /Users/you/Desktop/RTILA.app.
    4. Now press Return.

  3. Paste it and press Return

    Click inside the Terminal window, press ⌘ Command + V, then press Return.

    Terminal shows nothing when it works. No message, no confirmation, just a fresh prompt on the next line. That silence means success. Close Terminal and open RTILA X normally.

Still won’t open?

  • If you still see RTILA_Mac.app.tar.gz, that is the compressed archive, not the app. Double-click it once — macOS unpacks it into RTILA.app — then run the fix again.
  • If Terminal says No such file or directory, the path is wrong. Use the drag-into-Terminal method above.
  • If Terminal says Operation not permitted, put sudo in front of the command and press Return. It asks for your Mac login password. Nothing appears on screen as you type — that is normal. Press Return again.

Still stuck? Email support@rtila.com with your macOS version and where RTILA.app is sitting. We will walk you through it.

Why does macOS do this?

macOS attaches a hidden com.apple.quarantine flag to every file that arrives from the internet. When you open a quarantined app, Gatekeeper checks its code signature. If that check does not satisfy Gatekeeper, macOS reports the app as “damaged” — even though the file is byte-for-byte intact.

xattr -cr removes that flag. -c clears the attributes, -r does it recursively so every file inside the app bundle is covered. Nothing inside RTILA X is modified.

You may see advice elsewhere to right-click the app and choose Open. That clears a different warning — “cannot be opened because the developer cannot be verified” — and usually does not clear a “damaged” error. Use the Terminal command.

Mac Download FAQs

Is my download corrupted?
No. The file is intact. macOS attaches a quarantine flag to everything downloaded from the internet, and when Gatekeeper is not satisfied it reports the app as "damaged" even though nothing is wrong with it. Clearing the flag with xattr is the standard, safe fix.
Is the xattr command safe to run?
Yes. xattr -cr only removes the extended attributes macOS added when the file was downloaded. It does not modify the application itself, and it is the command Apple documents for this situation.
Does it matter whether I have an Apple Silicon or an Intel Mac?
No. The fix is identical on Apple Silicon (M1, M2, M3, M4) and on Intel Macs. Both use the same Gatekeeper quarantine mechanism.
Terminal says "No such file or directory". What now?
The command is pointing at a folder RTILA is not in. Use the drag-into-Terminal method on this page: it works no matter where the app lives, because Terminal fills in the correct path for you.
I still see a file called RTILA_Mac.app.tar.gz
That is the compressed archive, not the app. Double-click it once and macOS unpacks it into RTILA.app. Then run the fix on RTILA.app.
Nothing worked. Who can help?
Email support@rtila.com and tell us your macOS version and where RTILA.app is sitting. We will walk you through it — this is a solved problem and nobody is left stuck.

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