我使用作曲家在我的服務(wù)器上安裝了密碼甜，但當(dāng)我嘗試導(dǎo)入庫時(shí)，我收到此錯(cuò)誤。Fatal error: Uncaught Error: Class 'ParagonIE\CipherSweet\KeyProvider\StringProvider' not found in index.php.似乎依賴項(xiàng)沒有正確安裝，我迷路了，你能幫忙嗎？這是一個(gè) php 錯(cuò)誤。這是我的代碼：use ParagonIE\CipherSweet\EncryptedRow;use ParagonIE\CipherSweet\Transformation\AlphaCharactersOnly;use ParagonIE\CipherSweet\Transformation\FirstCharacter;use ParagonIE\CipherSweet\Transformation\Lowercase;use ParagonIE\CipherSweet\Backend\FIPSCrypto;use ParagonIE\CipherSweet\KeyProvider\StringProvider;$provider = new StringProvider('a981d3894b5884f6965baea64a09bb5b4b59c10e857008fc814923cf2f2de558');$engine = new CipherSweet($provider, new FIPSCrypto());/** @var CipherSweet $engine */$row = (new EncryptedRow($engine, 'contacts'))    ->addTextField('first_name')    ->addTextField('last_name')    ->addFloatField('latitude')    ->addFloatField('longitude');// Notice the ->addRowTransform() method:$row->addCompoundIndex(    $row->createCompoundIndex(        'contact_first_init_last_name',        ['first_name', 'last_name'],        64, // 64 bits = 8 bytes        true    )        ->addTransform('first_name', new AlphaCharactersOnly())        ->addTransform('first_name', new Lowercase())        ->addTransform('first_name', new FirstCharacter())        ->addTransform('last_name', new AlphaCharactersOnly())        ->addTransform('last_name', new Lowercase()));$prepared = $row->prepareRowForStorage([    'first_name' => 'Jane',    'last_name' => 'Doe',    'latitude' => 52.52,    'longitude' => -33.106,    'extraneous' => true]);var_dump($prepared);?>