Vanilla Celeste Unable to Launch (M4 Mac) | Mt. Celeste Climbing Association | Page 1

solemn meadow Dec 22, 2025, 12:47 AM

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Hello:) I recently got a M4 Macbook air and have been trying to launch celeste on it but keep getting this error
Ver 1.4.0.0 2025-12-21 5:43:12 PM System.IO.EndOfStreamException: Unable to read beyond the end of the stream. at System.IO.BinaryReader.FillBuffer (System.Int32 numBytes) [0x0007a] in <d1664be62cd44600bbd25f7afa292479>:0 at System.IO.BinaryReader.ReadSingle () [0x00000] in <d1664be62cd44600bbd25f7afa292479>:0 at Celeste.PlaybackData.Import (System.Byte[] buffer) [0x00079] in <4a26f9ded6704c87a2f47e66d2d85163>:0 at Celeste.PlaybackData.Load () [0x00028] in <4a26f9ded6704c87a2f47e66d2d85163>:0 at Celeste.Celeste.LoadContent () [0x0001a] in <4a26f9ded6704c87a2f47e66d2d85163>:0 at Microsoft.Xna.Framework.Game.Initialize () [0x00073] in <1da441a83bdf4bb5b80df9bed1445171>:0 at Monocle.Engine.Initialize () [0x00000] in <4a26f9ded6704c87a2f47e66d2d85163>:0 at Celeste.Celeste.Initialize () [0x00000] in <4a26f9ded6704c87a2f47e66d2d85163>:0 at Microsoft.Xna.Framework.Game.DoInitialize () [0x00039] in <1da441a83bdf4bb5b80df9bed1445171>:0 at Microsoft.Xna.Framework.Game.Run () [0x0000e] in <1da441a83bdf4bb5b80df9bed1445171>:0 at Monocle.Engine.RunWithLogging () [0x00000] in <4a26f9ded6704c87a2f47e66d2d85163>:0
Could anyone try to help resolve this:)

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Also should be noted the game is installed on an external SSD

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(since apple for some god awful reason decided 256gb is enough for a laptop)

burnt fjord Dec 22, 2025, 1:12 AM

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what the obfuscated!! <@&673391557939953684> is this normal?

manic bramble Dec 22, 2025, 1:13 AM

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solemn meadow Hello:) I recently got a M4 Macbook air and have been trying to launch celeste o...

can you try validating game files? this smells like corrupted playback bin to me

ember dawn Dec 22, 2025, 1:14 AM

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manic bramble can you try validating game files? this smells like corrupted playback bin to me

nope!

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its macos bullshit

burnt fjord Dec 22, 2025, 1:14 AM

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is this kind of stack trace expected in vanilla??

ember dawn Dec 22, 2025, 1:14 AM

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@solemn meadow open terminal in your celeste folder

manic bramble Dec 22, 2025, 1:14 AM

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ember dawn its macos bullshit

oh despair

ember dawn Dec 22, 2025, 1:15 AM

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i know the answer but don't want to spoil it yet

burnt fjord Dec 22, 2025, 1:21 AM

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snip the mysterious

solemn meadow Dec 22, 2025, 1:31 AM

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ember dawn <@354754526835769345> open terminal in your celeste folder

okay!!

ember dawn Dec 22, 2025, 1:32 AM

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once that's done run ls -a Content

solemn meadow Dec 22, 2025, 1:34 AM

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it says
ls: Content: No such file or directory

ember dawn Dec 22, 2025, 1:34 AM

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you're not in the celeste folder then

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does the path to the left of $ have Celeste in it

solemn meadow Dec 22, 2025, 1:36 AM

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that's what the terminal is looking like

ember dawn Dec 22, 2025, 1:36 AM

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i think you may need to cd to Resources then

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ls and show what's inside

solemn meadow Dec 22, 2025, 1:36 AM

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oops

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wrong ss

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sorry

ember dawn Dec 22, 2025, 1:37 AM

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lmao figured

solemn meadow Dec 22, 2025, 1:37 AM

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way too used to windows lol...

ember dawn Dec 22, 2025, 1:37 AM

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yeah, cd Celeste.app/Resources iirc

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there should be a content folder there

solemn meadow Dec 22, 2025, 1:39 AM

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hmm there doesn't seem to be a 'recourses'

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resources

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i spelt it right the last time i think

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:)

ember dawn Dec 22, 2025, 1:39 AM

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okay what is inside then

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do ls

solemn meadow Dec 22, 2025, 1:40 AM

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nothing??

ember dawn Dec 22, 2025, 1:40 AM

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ah

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so ig its in contents/resources

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i don't do mac often

solemn meadow Dec 22, 2025, 1:40 AM

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all good, i'm very new to macos

ember dawn Dec 22, 2025, 1:40 AM

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so cd Contents/Resources, if that doesn't work then cd Contents and ls

solemn meadow Dec 22, 2025, 1:42 AM

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we are making progress:)

ember dawn Dec 22, 2025, 1:42 AM

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yeah now ls -a Content

solemn meadow Dec 22, 2025, 1:43 AM

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ember dawn Dec 22, 2025, 1:44 AM

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yep now you see the reason your celeste is broken

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all those files starting with ._ should not be there

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cc @manic bramble

manic bramble Dec 22, 2025, 1:44 AM

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._.

ivory dew Dec 22, 2025, 1:44 AM

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._ widegladeline2

solemn meadow Dec 22, 2025, 1:45 AM

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ember dawn all those files starting with `._` should not be there

ah what the hell

ember dawn Dec 22, 2025, 1:45 AM

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there's an easy way to get rid of them

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run find . -type f -name '._*' , you'll get a list of all the files that it should get rid of

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we're finding all items that are a file, whose name starts with ._

solemn meadow Dec 22, 2025, 1:47 AM

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just ran it and got this

ember dawn Dec 22, 2025, 1:47 AM

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oh i thought we're in the content folder

solemn meadow Dec 22, 2025, 1:47 AM

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nope recources

ember dawn Dec 22, 2025, 1:48 AM

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anyways, yeah if you scroll down a lot you'll see ./Content/Maps/._0-Prologue.bin

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@manic bramble this is why it's crashing in this way

solemn meadow Dec 22, 2025, 1:48 AM

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oh yes i see that now

ember dawn Dec 22, 2025, 1:48 AM

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it's trying to parse a macos metadata file as a map bin file

manic bramble Dec 22, 2025, 1:48 AM

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ohhh i see

ember dawn Dec 22, 2025, 1:48 AM

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hence, macos bs

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anyways

manic bramble Dec 22, 2025, 1:49 AM

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is this something to fix in everest then?

solemn meadow Dec 22, 2025, 1:49 AM

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i'm not using everest

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running vanilla celeste

ember dawn Dec 22, 2025, 1:49 AM

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yeah its vanilla

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i consider this macos' fault

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anyways

manic bramble Dec 22, 2025, 1:49 AM

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yea but if the crash also happens in everest then we care about it from an everest perspective

ember dawn Dec 22, 2025, 1:49 AM

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cd Content

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it also happens in everest yes

ember dawn Dec 22, 2025, 1:50 AM

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ember dawn run `find . -type f -name '._*'` , you'll get a list of all the files that it ...

then rerun this command, but add a space and -delete after it

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this will delete all of those files starting with ._ and fix your install

solemn meadow Dec 22, 2025, 1:50 AM

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okay done!

ember dawn Dec 22, 2025, 1:50 AM

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now launch celeste

solemn meadow Dec 22, 2025, 1:51 AM

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we are up and running:)

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tysm ! u guys are awesome

ember dawn Dec 22, 2025, 1:51 AM

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snip_glumbsup

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ive seen this before several times so ik the cause

solemn meadow Dec 22, 2025, 1:51 AM

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what is the cause out of curiousity?

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i'm also getting an error when trying to launch omori so i'm curious if it'd be the same cause

ember dawn Dec 22, 2025, 1:53 AM

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apple stores extra filesystem metadata in those ._ files

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im not sure what kind of metadata but it's not really critical

solemn meadow Dec 22, 2025, 1:54 AM

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ah weird

ember dawn Dec 22, 2025, 1:55 AM

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oh this exists

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https://en.wikipedia.org/wiki/AppleSingle_and_AppleDouble_formats

AppleSingle and AppleDouble formats

AppleSingle Format and AppleDouble Format are file formats developed by Apple Computer to store Mac OS "dual-forked" files on the Unix filesystem being used in A/UX, the Macintosh platform's first Unix-like operating system. AppleSingle combined both file forks and the related Finder meta-file information into a single file, whereas AppleDouble ...

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@solemn meadow if you have your terminal still open, what does which dot_clean show

fast crag Dec 22, 2025, 7:30 AM

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burnt fjord what the obfuscated!! <@&673391557939953684> is this normal?

I think I saw those hash things when we were still using Mono, and since this is vanilla and not Windows, I guess that's what's happening here

ember dawn Dec 22, 2025, 7:31 AM

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fast crag I think I saw those hash things when we were still using Mono, and since this is...

yes this is mono weirdness

#Vanilla Celeste Unable to Launch (M4 Mac)