Flutter Floor "duplicate column name" - sql

Question

I'm facing this exact error using the Floor package in Flutter Unhandled Exception: DatabaseException(Error Domain=FMDatabase Code=1 "duplicate column name: kit" and I can't see exactly where i've made a mistake, here's my full database code:
The error happens when I currently have version 5 of the database running and I attempt to run a build of the project that has version 6.
#Database(version: 6, entities: [Player, SavedTeam, Design, Kit, KitPattern])
abstract class LocalDatabase extends FloorDatabase {
PlayerDao get playerDao;
SavedTeamDao get savedTeaDao;
DesignDao get designDao;
KitDao get kitDao;
KitPatternDao get kitPatternDao;
}
final migration1to2 = Migration(1, 2, (database) async {
await database.execute('CREATE TABLE IF NOT EXISTS `SavedTeam` '
'(`id` TEXT NOT NULL, '
' `pitchFilePath` TEXT NOT NULL,'
' `playerOne` TEXT NOT NULL,'
' `playerTwo` TEXT NOT NULL, '
' `playerThree` TEXT NOT NULL, '
' `playerFour` TEXT NOT NULL, '
' `playerFive` TEXT NOT NULL, '
' `playerSix` TEXT NOT NULL, '
' `playerSeven` TEXT NOT NULL, '
' `playerEight` TEXT NOT NULL, '
' `playerNine` TEXT NOT NULL, '
' `playerTen` TEXT NOT NULL, '
' `playerEleven` TEXT NOT NULL, '
' `playerOneOffset` TEXT NOT NULL, '
' `playerTwoOffset` TEXT NOT NULL, '
' `playerThreeOffset` TEXT NOT NULL, '
' `playerFourOffset` TEXT NOT NULL, '
' `playerFiveOffset` TEXT NOT NULL, '
' `playerSixOffset` TEXT NOT NULL, '
' `playerSevenOffset` TEXT NOT NULL, '
' `playerEightOffset` TEXT NOT NULL, '
' `playerNineOffset` TEXT NOT NULL, '
' `playerTenOffset` TEXT NOT NULL, '
' `playerElevenOffset` TEXT NOT NULL, '
' `kitColor` TEXT NOT NULL, '
' `pitch` TEXT NOT NULL, '
'PRIMARY KEY (`id`))');
});
final migration2to3 = Migration(2, 3, (database) async {
await database.execute('CREATE TABLE IF NOT EXISTS `Design` '
'(`id` TEXT NOT NULL, '
' `pattern` TEXT NOT NULL, '
' `patternColor` TEXT NOT NULL, '
' `baseKitColor` TEXT NOT NULL, '
'PRIMARY KEY (`id`))');
await database.execute('ALTER TABLE SavedTeam ADD COLUMN design TEXT');
await database.execute('ALTER TABLE SavedTeam ADD COLUMN showPhotos INTEGER');
});
final migration3to4 = Migration(3, 4, (database) async {
await database.execute('CREATE TABLE IF NOT EXISTS `Kit` '
'(`id` TEXT NOT NULL, '
' `productId` TEXT NOT NULL, '
' `assetPath` TEXT NOT NULL, '
'PRIMARY KEY (`id`))');
});
final migration4to5 = Migration(4, 5, (database) async {
await database.execute('ALTER TABLE SavedTeam ADD COLUMN kit TEXT');
});
final migration5to6 = Migration(5, 6, (database) async {
await database.execute('CREATE TABLE IF NOT EXISTS `KitPattern` '
'(`id` TEXT NOT NULL, '
' `productId` TEXT NOT NULL, '
' `assetPath` TEXT NOT NULL, '
'PRIMARY KEY (`id`))');
});
final localDatabase = $FloorLocalDatabase
.databaseBuilder('local_database.db')
.addMigrations([
migration1to2,
migration2to3,
migration3to4,
migration4to5,
migration5to6
]).build();

Answer 1

Although I couldn't figure out exactly why SQL was attempting to run an old migration (4 to 5) I have fixed the issue by wrapping the migration in a try catch like so:
final migration4to5 = Migration(4, 5, (database) async {
try {
await database.execute('ALTER TABLE SavedTeam ADD COLUMN kit TEXT');
} on Exception {
print("migration 4to5 error");
}
});