No such command 'mounter'.

[tm20314]

I want to activate JIT, but I get this error and cannot activate it.

I have tried all the means mentioned here.

https://github.com/altstoreio/AltStore/issues/1345

Error Description
The process 'altjit' failed with code 1. The process 'python3' failed with code 2. Error: No such command 'mounter'.

Failure Reason
The process 'altjit' failed with code 1. The process 'python3' failed with code 2. Error: No such command 'mounter'.

Title
JIT could not be enabled for UTM.

Source Line
96

executableURL
file:///Applications/AltServer.app/Contents/MacOS/altjit

exitCode
1

output
Mounting personalized developer disk...
❌ Unable to mount personalized Developer Disk.
The process 'python3' failed with code 2. Error: No such command 'mounter'.

[kylew01]

I'm getting the exact same error. macOS Sonoma 14.2 M1 Mac Studio.

[ugurakdemir]

Same error 🔂 MacOS Sonoma 14.2.1 - M1 Pro iOS 17.2.1

[2Allen]

some error macOS Sonoma 14.4.1 - M1 iPad os 17.4.1

[Netkubb]

This works for me

1. Right-click on the AltServer app in Finder.
2. Choose Get Info.
3. Check the box for Open using Rosetta.
4. Restart AltServer and try enabling JIT again.

[michmachmuch]

I have the same error macOS Sonoma 14.7.4 - Intel

[nsertnamhere]

Same error. MacOS Sequoia 15.4.1 M1 chip

[rdlwicked]

Same error. MacOS Sequoia 15.3.2 M3 Chip

[lwsbrdx]

Same error. MacOS Sequoia 15.4 (24E248), M2

[gabopazoc]

Same error. MacOS Sequoia 15.3.2, M3 with iOS 18.3.2

[Lcoolj907]

I solved the issue by making sure homebrew was installed properly, and then by making sure "libimobiledevice" was installed. The mounter command seems to be used by the later program and if not installed properly it will not run @ugurakdemir @lwsbrdx @kylew01 @tm20314 @nsertnamhere

[gabopazoc]

@Lcoolj907 what exactly did you do to check if brew was properly installed? I just uninstalled (and deleted any homebrew file I could find) and reinstalled it, and also installed the libimobiledevice, but it gives me the same error "No such command "mounter"" :(

[TheKJAMP]

I solved the issue by making sure homebrew was installed properly, and then by making sure "libimobiledevice" was installed. The mounter command seems to be used by the later program and if not installed properly it will not run @ugurakdemir @lwsbrdx @kylew01 @tm20314 @nsertnamhere

I have installed both but still get this error.

[TheKJAMP]

Could now activate JIT through SideJITServer. Boy was that a birth.

[FujiiRyohei]

I found solution for this problem but got another error.

/Applications/Xcode.app/Contents/Developer/usr/bin/python3 -m pip install pymobiledevice3==2.30.0 # required for fixing "No such command 'mounter'" error /Applications/Xcode.app/Contents/Developer/usr/bin/python3 -m pip install ipsw_parser==1.3.4 # required for fixing "stream.tell() failed" error /Applications/Xcode.app/Contents/Developer/usr/bin/python3 -m pip install construct==2.10.69 # required for fixing "KeyError: <Epoch.INITIAL: 0>" error /Applications/Xcode.app/Contents/Developer/usr/bin/python3 -m pip install qh3==0.15.1

Then follow this instruction to fix "PUBLIC_KEY" error. https://gist.github.com/tonycoco/66b08eea237ff64bf7becb54afb2e04d AltJIT requires pymobiledevice3==2.30.0, but this process requires latest pymobiledevice3, so you have to install it on another python environment.

But I still get "ConnectionError". https://github.com/altstoreio/AltStore/issues/1545 Maybe this problem only occurs on iOS ver. >= 18, so if you are using older version it's worth trying.

[Rickyxrc]

Same error. MacOS Sequoia 15.3.2 M2 Chip

[mgbvox]

Same error, Mac OS Sequoia 15.4.1 M3 chip.

[Kiprialjr]

Same error, MacOS Sequoia 15.5

[sajibnet90]

same error sequina Version 15.2 (24C101) .M3 pro

[Outfluencer]

Same error macOS 15.5 MacBook Air m4

[jacobflee]

same error lmao, just wanna play gamecube

[PioneerSwine996]

same error... macOS 26 Beta 1 Macbook Pro M3

[hexcowboy]

StikDebug is way easier to get working for now. https://stikdebug.xyz/routes/download.html

[ZirrorDmage]

python3 -m pymobiledevice3 (pymobiledevice3-2.30.0) don't have command 'mounter', however if we install the latest pymobiledevice3 , error log shows (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64'))

[suchsu]

same error MBA M2 macOS 26 beta 6, iPad Pro 12.9 M1 iPadOS 26 beta 6

[DustdevDM]

same here