小编let*_*ump的帖子

在通过命令更新我的yii2应用程序库时composer update,composer-php退出了

[InvalidArgumentException]                                                                                                          
Unknown downloader type: npm-signature. Available types: git, svn, fossil, hg, perforce, zip, rar, tar, gzip, xz, phar, file, path.  

Exception trace:
() at phar:///usr/local/bin/composer/src/Composer/Downloader/DownloadManager.php:128
Composer\Downloader\DownloadManager->getDownloader() at phar:///usr/local/bin/composer/src/Composer/Downloader/DownloadManager.php:152
Composer\Downloader\DownloadManager->getDownloaderForInstalledPackage() at phar:///usr/local/bin/composer/src/Composer/Downloader/DownloadManager.php:211
Composer\Downloader\DownloadManager->download() at phar:///usr/local/bin/composer/src/Composer/Installer/LibraryInstaller.php:186
Composer\Installer\LibraryInstaller->installCode() at phar:///usr/local/bin/composer/src/Composer/Installer/LibraryInstaller.php:90
Composer\Installer\LibraryInstaller->install() at phar:///usr/local/bin/composer/src/Composer/Installer/InstallationManager.php:173
Composer\Installer\InstallationManager->install() at phar:///usr/local/bin/composer/src/Composer/Installer/InstallationManager.php:160
Composer\Installer\InstallationManager->execute() at phar:///usr/local/bin/composer/src/Composer/Installer.php:588
Composer\Installer->doInstall() at phar:///usr/local/bin/composer/src/Composer/Installer.php:227
Composer\Installer->run() at phar:///usr/local/bin/composer/src/Composer/Command/UpdateCommand.php:161
Composer\Command\UpdateCommand->execute() at phar:///usr/local/bin/composer/vendor/symfony/console/Command/Command.php:242
Symfony\Component\Console\Command\Command->run() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:842
Symfony\Component\Console\Application->doRunCommand() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:193
Symfony\Component\Console\Application->doRun() at phar:///usr/local/bin/composer/src/Composer/Console/Application.php:251
Composer\Console\Application->doRun() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:117
Symfony\Component\Console\Application->run() at phar:///usr/local/bin/composer/src/Composer/Console/Application.php:100
Composer\Console\Application->run() at …

如果我尝试通过在Typo3 6.1.7的扩展程序构建器上创建新的模型对象来扩展fe_user表，它将通过在扩展程序的ext_tables.php中写入这些行来覆盖TCA：

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addLLrefForTCAdescr('fe_users', 'EXT:voiwizard/Resources/Private/Language/locallang_csh_fe_users.xlf');
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::allowTableOnStandardPages('fe_users');
$TCA['fe_users'] = array(
    'ctrl' => array(
        'title' => 'LLL:EXT:voiwizard/Resources/Private/Language/locallang_db.xlf:fe_users',
        'label' => 'prova',
        'tstamp' => 'tstamp',
        'crdate' => 'crdate',
        'cruser_id' => 'cruser_id',
        'dividers2tabs' => TRUE,

        'versioningWS' => 2,
        'versioning_followPages' => TRUE,
        'origUid' => 't3_origuid',
        'languageField' => 'sys_language_uid',
        'transOrigPointerField' => 'l10n_parent',
        'transOrigDiffSourceField' => 'l10n_diffsource',
        'delete' => 'deleted',
        'enablecolumns' => array(
            'disabled' => 'hidden',
            'starttime' => 'starttime',
            'endtime' => 'endtime',
        ),
        'searchFields' => 'prova,',
        'dynamicConfigFile' => \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::extPath($_EXTKEY) . 'Configuration/TCA/User.php',
        'iconfile' => \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::extRelPath($_EXTKEY) . 'Resources/Public/Icons/fe_users.gif'
    ),
);

此代码将覆盖原始fe_users的TCA配置，并且后端[网站用户] [1]表将变得不可访问。有什么方法可以防止这种情况，还是每次我想在扩展构建器中保存更改时都必须删除这些行？