Laravel 表 * 没有名为 * 的列

My unit tests recently started failing. I am getting this error:

PDOException: SQLSTATE[HY000]: 
General error: 1 table loan_details has no column named start_month

在发生这种情况的线路上，我有这样的代码:

$loan = LoanDetails::create(['loan_percentage' => .8,
        'loan_product_id' => 1,
        'interest_rate' => .5,
        'start_month' => 0,
        'term' => 120,
        'fixed_finance_fee' => 0,
        'variable_finance_Fee' => 0,
        'valid_from' => '2015-01-01'
    ]);

如果我把"开始月份"这行注释掉，那么它在逻辑上是有效的.

在单元测试的设置中，我运行了所有迁移(大约80次).

I have a migration that looks like this:

Schema::table('loan_details', function(Blueprint $table){
     $table->integer('start_month')->unsigned()->after('interest_only')->default(0);
     $table->decimal('balloon_percent',4,3)->after('term')->nullable();
     $table->integer('balloon_month')->after('balloon_percent')->nullable();
     $table->dropColumn('ordinal_rank');
});

So, I wondered if all the migrations weren't running so I ran this code:

$rows = DB::table('migrations')->get();
print_r($rows);

这会将所有迁移列为已完成.我使用内存中的sqlite db进行测试.

我想知道迁移是否是异步运行的，在我的代码运行时它们还没有全部完成？或者如果迁移在某个地方悄silent息地失败了？

我已经干了几个小时了，不知道发生了什么事.

*UPDATE I have a migration that runs AFTER the above migration, and I confirmed that the subsequent migration was successful. So it is just this one migration that is silently failing in some way.