CakePHP立ち上げエラー[Please change the value of ‘Security.cipherSeed’ in APP/Config/core.php to a numeric (digits only) seed value specific to your application.]

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Please change the value of 'Security.cipherSeed' in APP/Config/core.php to a numeric (digits only) seed value specific to your application.

これは、\app\config\core.phpの

/**
 * A random numeric string (digits only) used to encrypt/decrypt strings.
 */
 Configure::write('Security.cipherSeed', 'ここを適当な数値にする');

この箇所を修正すれば消えました。