.MGU files (Band in a Box files)

• Aug 17, 2021 - 13:08

Lonny3octaves (https://musescore.com/user/29936993) sent a message: .MGU files open and display properly with Musescore 3.6.2, but they will not play and can't be saved. When attempting either of those actions, the app quits.

How can I fix that?


mgu/sgu import is listed as experimental in the open files dialog.
I'm guessing your import created a corrupt score which then in turn leads to the crashing.

If you attach the mgu file here then perhaps someone could try and reproduce it.

In reply to by Jojo-Schmitz

Stack trace:
1 Ms::Fraction::ticks fraction.h 247 0x105dcec
2 Ms::ChordRest::writeProperties chordrest.cpp 183 0x95e7da
3 Ms::Chord::write chord.cpp 993 0x93d8ec
4 Ms::Score::writeSegments scorefile.cpp 1364 0xb4dade
5 Ms::Measure::write measure.cpp 1991 0xa21fa2
6 Ms::writeMeasure scorefile.cpp 74 0xb458f2
7 Ms::Score::writeMovement scorefile.cpp 245 0xb4701d
8 Ms::Score::write scorefile.cpp 279 0xb47668
9 Ms::Score::saveFile scorefile.cpp 763 0xb4a766
10 Ms::Score::saveCompressedFile scorefile.cpp 611 0xb4960b
11 Ms::MasterScore::saveFile scorefile.cpp 423 0xb481f9
12 Ms::MuseScore::saveFile file.cpp 580 0x4bd934
13 Ms::MuseScore::saveFile file.cpp 520 0x4bd126
14 Ms::MuseScore::cmd musescore.cpp 6256 0x4318bc
15 Ms::MuseScore::cmd musescore.cpp 6044 0x43077a
16 Ms::MuseScore::qt_static_metacall moc_musescore.cpp 610 0x5eed7d
17 void doActivate(QObject *, int, void * *) 0x68b978bb
18 QActionGroupPrivate::_q_actionTriggered() 0x32824cc2
19 QActionGroup::qt_static_metacall(QObject *, QMetaObject::Call, int, void * *) 0x32825299
20 void doActivate(QObject *, int, void * *) 0x68b978bb

Apparently a division by 0 due to a chord or rest duration of 0, with a 0 numerator and denominator

Actually all the notes in those scores (all but the very last on oner of them)) seem to have a duration of "Full Measure", something that exists only for rests (and is different from a whole note/rest duration).

So it is really either the mgu import that is completly broken, of the mgu files themself.

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