Delete rows from sqlite database using qsqltablemodel

I am attempting to use QSqlTableModel to delete rows from an Sqlite database. -

model->select();
bool b = model->removeRows(0,200);
model->submitAll();

The return value is false, so I thought I would get the last error using

QSqlError e = model->lastError();

However, this error has a type of NoError and all the error strings are empty

Can someone tell me what I am doing wrong?