setup roundcube 0.8.1 error

[dxh86]

Hello, I installed in roundcube 0.8.1, to the third step, all the tests are good.But only check db config prompt following error
DB Schema:  NOT OK(Database schema differs)
Missing table 'cache_index'
Missing table 'cache_thread'
Missing table 'cache_messages'
Missing columns in table 'contacts': words
Missing table 'dictionary'
Missing table 'searches'

[SKaero]

There no need to post multiple threads just one is enough. Is this a fresh install of RoundCube or a upgrade?

[dxh86]

There no need to post multiple threads just one is enough. Is this a fresh install of RoundCube or a upgrade?

I originally installed 0.5.4, but send email, attachments can not be sent.My idea is to create a new directory, re the original code installation.Installation, this error

[SKaero]

If your using the same database then you'll need to upgrade, otherwise you could use a new database.