# PMS installation on Mac Mini M1 not working **URL:** \ **Category:** Plex Media Server\ **Tags:** server-mac\ **Created:** [March 16, 2022, 12:37pm UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848 "2022-03-16T12:37:57Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![tp33](https://avatars.discourse-cdn.com/v4/letter/t/a88e4f/32.png) [@tp33](https://forums.plex.tv/u/tp33)\ **Post date:** [March 16, 2022, 12:37pm UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/1 "2022-03-16T12:37:57Z")
Server Version#: 1.25.6.5577 Player Version#: 7.29 I am unable to install Plex Media Server on an Apple Mac Mini M1. I downloaded Plex Media Server for Mac ver. 1.25.6.5577. At installation, I was prompted to install Rosetta. Once installed, when I click Open Plex from the PMS top menu bar to start the setup wizard, Safari browser returns error message “404 Not Found” while pointing to “127.0.0.1:32400/web/index.html#!/setup/“. If I replace “127.0.0.1” with “localhost” in the browser address bar, I get the error message “A problem has been detected with a core component of PMS”. I can not find traces of Rosetta installed anywhere so I am not sure if it was properly installed. Activity Monitor shows that PMS is running. I have attached the [server logs](https://support.plex.tv/articles/200250417-plex-media-server-log-files/) and screenshots. What am I doing wrong? [Plex Media Server.1.log.zip](https://forums.plex.tv/uploads/short-url/ytzDT9Muw3OPYcp7gyPJ9XCxFfz.zip) (9.6 KB) ![image](https://global.discourse-cdn.com/plex/original/4X/d/0/8/d087427477a5ac829986ce300502a5b3e07f0c62.jpeg) ![image](https://global.discourse-cdn.com/plex/original/4X/7/5/c/75c8d4c6ba3bb45b50102de554516dca1352c80b.jpeg) ![image](https://global.discourse-cdn.com/plex/original/4X/e/2/9/e299ba5f8945de3e9d138e0020367b7cbd310e94.jpeg) ![image](https://global.discourse-cdn.com/plex/original/4X/7/6/9/7694849f01d5bfcabac8c63fa221bd2ff9fddf88.jpeg) ![image](https://global.discourse-cdn.com/plex/original/4X/6/3/0/630629d6b36b059c9ebb7e37a4605ea488d95b5f.jpeg) ---
**Author:** ![tp33](https://avatars.discourse-cdn.com/v4/letter/t/a88e4f/32.png) [@tp33](https://forums.plex.tv/u/tp33)\ **Post date:** [March 21, 2022, 12:49am UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/2 "2022-03-21T00:49:52Z")
I was able to access the PMS settings and start the setup by replacing 127.0.0.1 with localhost ([http://localhost:32400/web/index.html#!/settings/server/](http://localhost:32400/web/index.html#!/settings/server/)). But now I am not able to add any library or folders. It keeps saying “Your changes could not be saved”. I tried adding local folders on the C: drive or an external USB drive. No luck. I can browse the folders but Plex will not save the changes. Any ideas? ![PMS](https://global.discourse-cdn.com/plex/original/4X/d/9/6/d967d512e41452cc0953ad5924a09059e342165d.jpeg) ---
**Author:** ![SE56](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/se56/32/222425_2.png) [@SE56](https://forums.plex.tv/u/SE56)\ **Post date:** [March 21, 2022, 5:49pm UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/3 "2022-03-21T17:49:48Z")
You need to add permissions for plex. ![Screen Shot 2022-03-22 at 3.47.57 am](https://global.discourse-cdn.com/plex/original/4X/9/6/4/964891f59c674bba1026823acba18f80070dced7.jpeg) ---
**Author:** ![tp33](https://avatars.discourse-cdn.com/v4/letter/t/a88e4f/32.png) [@tp33](https://forums.plex.tv/u/tp33)\ **Post date:** [March 22, 2022, 9:32am UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/4 "2022-03-22T09:32:36Z")
I already added permissions like you said but PMS still will not let me save changes when adding a library or folder. ![Security](https://global.discourse-cdn.com/plex/original/4X/4/e/2/4e2baf780d1d5346ca42f68544a9c9227247c47e.jpeg) ---
**Author:** ![SE56](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/se56/32/222425_2.png) [@SE56](https://forums.plex.tv/u/SE56)\ **Post date:** [March 22, 2022, 4:30pm UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/5 "2022-03-22T16:30:06Z")
I have seen this issue myself and the only two ways i have seen to resolve. 1. A server restart 2. Manually replace the Contents Folder in Applications. To replace the contents folder Shut Down Plex from menu bar Chevon. Navigate to **Go** menu top of Desktop, hold down the **Option** Key till you see **Library**. Enter **Application support** /Plex Media server/updates/ _the same Server version as mentioned_/Packages/PMS Zip/ Duplicate the zip and drag it to the desktop. Expand **Zip** so you have a new Contents folder on the desktop. Go to **Applications Folder** /Plex Media server/ Right click/show package contents/ swap out contents Folders. Now **start Plex** and see if you can add folders to a Library. ---
**Author:** ![tp33](https://avatars.discourse-cdn.com/v4/letter/t/a88e4f/32.png) [@tp33](https://forums.plex.tv/u/tp33)\ **Post date:** [March 23, 2022, 12:22pm UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/6 "2022-03-23T12:22:07Z")
I followed all your instructions and I still get the same error message when adding folders to a Library: “Your changes could not be saved” ---
**Author:** ![tp33](https://avatars.discourse-cdn.com/v4/letter/t/a88e4f/32.png) [@tp33](https://forums.plex.tv/u/tp33)\ **Post date:** [April 23, 2022, 1:10pm UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/7 "2022-04-23T13:10:00Z")
I found the solution: Plex Media Server was not accepting blanks in the computer name. I changed the computer name from “Mac Mini” to “Mac-Mini” and the installation worked perfectly. ---
**Author:** ![SE56](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/se56/32/222425_2.png) [@SE56](https://forums.plex.tv/u/SE56)\ **Post date:** [April 23, 2022, 3:09pm UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/8 "2022-04-23T15:09:10Z")
To clarify, you are meaning the Friendly name of the Plex Media server and not the Mac Admin name? ---
**Author:** ![tp33](https://avatars.discourse-cdn.com/v4/letter/t/a88e4f/32.png) [@tp33](https://forums.plex.tv/u/tp33)\ **Post date:** [April 24, 2022, 12:35am UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/9 "2022-04-24T00:35:20Z")
I changed the “Computer Name” under Settings/Sharing on the Mac Mini. The Plex Media Server’s Friendly Name automatically changed itself to match the Mac Mini’s Computer Name after a restart. ---
**Author:** ![SE56](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/se56/32/222425_2.png) [@SE56](https://forums.plex.tv/u/SE56)\ **Post date:** [April 24, 2022, 2:09am UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/10 "2022-04-24T02:09:13Z")
So this must a Apple Silicon issue with Monterey as on Intel and Big Sur this is not an issue. I have admin name and a Friendly name that are different. Gary’s iMac and SE56 ---
**Author:** ![Volts](https://avatars.discourse-cdn.com/v4/letter/v/a5b964/32.png) [@Volts](https://forums.plex.tv/u/Volts)\ **Post date:** [April 24, 2022, 3:36am UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/11 "2022-04-24T03:36:07Z")
> [@tp33](#): > > I changed the computer name from “Mac Mini” to “Mac-Mini” and the installation worked perfectly. Nice find! Random! Where did you change this? This right? `System Preferences` → `Sharing` → `Computer Name` Or somewhere else also? I agree with @SE56, I have Intel machines with spaces in their names, and the default computer name will typically include a space. I’ll be surprised if it’s an Apple Silicon issue … that would be odd … But like, nice find. ---
**Author:** ![tp33](https://avatars.discourse-cdn.com/v4/letter/t/a88e4f/32.png) [@tp33](https://forums.plex.tv/u/tp33)\ **Post date:** [April 24, 2022, 10:19am UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/12 "2022-04-24T10:19:08Z")
Yes in `System Preferences` → `Sharing` → `Computer Name` My Mac Mini M1’s default computer name was “Tony’s Mac Mini”. I had to change it to “Mac-Mini” for the Plex Media Server installation to work. ---
**Author:** ![Volts](https://avatars.discourse-cdn.com/v4/letter/v/a5b964/32.png) [@Volts](https://forums.plex.tv/u/Volts)\ **Post date:** [April 24, 2022, 10:21am UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/13 "2022-04-24T10:21:33Z")
Thanks for confirming. That’s super weird. What made you think of it in the first place? ---
**Author:** ![tp33](https://avatars.discourse-cdn.com/v4/letter/t/a88e4f/32.png) [@tp33](https://forums.plex.tv/u/tp33)\ **Post date:** [April 24, 2022, 11:02am UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/14 "2022-04-24T11:02:43Z")
I looked at the Plex Media [Server logs](https://support.plex.tv/articles/200250417-plex-media-server-log-files/) and saw an error saying something like “server name not valid”. ---
**Author:** ![Volts](https://avatars.discourse-cdn.com/v4/letter/v/a5b964/32.png) [@Volts](https://forums.plex.tv/u/Volts)\ **Post date:** [April 24, 2022, 11:16am UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/15 "2022-04-24T11:16:07Z")
Well that’s obvious and … obvious. Good job reading logs and actually paying attention. 🙂 😃 I wonder if it was the apostrophe, rather than the space? I wonder if it was a _pretty_ apostrophe? It seems like any special characters get stripped off when the Unix-style hostname is set. It seems like Plex uses the Unix-style hostname, but … Ahh, well. Glad it’s working! ---
**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\ **Post date:** [July 23, 2022, 11:17am UTC](https://forums.plex.tv/t/pms-installation-on-mac-mini-m1-not-working/780848/16 "2022-07-23T11:17:02Z")
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