Can't start MuseScore 4 on Mac

• Jan 7, 2024 - 16:34

I was using MU 4 for a long time without any problems on x86_64 mac. Last time I opened without problems is April 23, 2023. When trying to open MU 4 I only see the splash screen for a split second and MU 4 won't start.

I removed MU 4 compltely (musescore/v4.2.0/MuseScore-4.2.0.233521125.dmg) and re-installed -- Same problem
Removed again and tried latest nightly (musescore-nightlies/macos/4x/nightly/MuseScoreNightly-latest-master-x86_64.dmg) -- Same result

MU 3 (OS: macOS 10.16, Arch.: x86_64, MuseScore version (64-bit): 3.6.2.548020600, revision: 3224f34) works as expected.

I don't know how to debug this, so any handle on this is appreciated.

Comments

• Jan 7, 2024 - 20:37

Does the following help?
1. Open Finder
2. Press Cmd+Shift+G
3. Type /usr/local/lib and press the Return key
4. Find the file libMuseSamplerCoreLib.dylib and move it to trash (possibly you need to enter your password).

Be sure to touch only that file and nothing else :)

This file is the MuseSampler library, which is a part of Muse Sounds. It might be causing this problem, but deleting it is the only way to find that out.

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