我最近将Symfony从2.1更新到2.2，现在我收到错误：
错误：在vendor/symfony/symfoy/src/symfony/Bundle/SecurityBundle/Twig/Extension/LogoutUrlExtension.php行41 中找不到类"Twig_SimpleFunction"
我的composer.json:
...
"require": {
"php": ">=5.4",
"symfony/symfony": "2.2.*",
"twig/twig": "1.11.x",
"twig/extensions": "1.0.x-dev",
"noetix/easy-csv": "dev-master",
"symfony/assetic-bundle": "2.*",
"symfony/swiftmailer-bundle": "2.*",
"symfony/monolog-bundle": "2.*",
"sensio/distribution-bundle": "2.*",
"sensio/framework-extra-bundle": "2.*",
"sensio/generator-bundle": "2.*",
"jms/security-extra-bundle": "1.4.*",
"jms/di-extra-bundle": "1.3.*",
"jms/serializer": "0.12.*",
"jms/serializer-bundle" : "0.12.*@dev",
"jms/metadata" : "1.3.*",
"friendsofsymfony/user-bundle": "patch-1-dev",
"friendsofsymfony/jsrouting-bundle": "1.2.*",
"propel/propel1": ">=1.6.7",
"propel/propel-bundle": "1.2.x-dev",
"willdurand/propel-typehintable-behavior": "dev-master",
"pagerfanta/pagerfanta": "1.0.x-dev",
"white-october/pagerfanta-bundle": "dev-master",
"knplabs/knp-menu-bundle": "dev-master",
"knplabs/knp-menu": "2.0.x-dev",
"exercise/elastica-bundle": "dev-master",
"gregwar/captcha-bundle": "dev-master",
"nelmio/api-doc-bundle": "2.1.*",
"fr3d/ldap-bundle": "2.0.*@dev",
"conjecto/easyrdf-bundle": "dev-master"
},
...
Twig弃用的功能页面上写道："从Twig 1.x开始，使用Twig_SimpleFunction"。我有1.11，所以我不明白我做错了什么。
找到了。正如我所怀疑的，问题出在无效的依赖项中。我下载了symfony.2.11，并相应地更改了我的composer.json（注意不再引用trick，并更改了一些symfony/*和sensio/*依赖项）：
"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.2.*",
"twig/extensions": "1.0.*",
"noetix/easy-csv": "dev-master",
"symfony/assetic-bundle": "2.1.*",
"symfony/swiftmailer-bundle": "2.2.*",
"symfony/monolog-bundle": "2.2.*",
"sensio/distribution-bundle": "2.2.*",
"sensio/framework-extra-bundle": "2.2.*",
"sensio/generator-bundle": "2.2.*",
"jms/security-extra-bundle": "1.4.*",
"jms/di-extra-bundle": "1.3.*",
"jms/serializer": "0.12.*",
"jms/serializer-bundle" : "0.12.*@dev",
"jms/metadata" : "1.3.*",
"friendsofsymfony/user-bundle": "patch-1-dev",
"friendsofsymfony/jsrouting-bundle": "1.2.*",
"propel/propel1": ">=1.6.7",
"propel/propel-bundle": "1.2.x-dev",
"willdurand/propel-typehintable-behavior": "dev-master",
"pagerfanta/pagerfanta": "1.0.x-dev",
"white-october/pagerfanta-bundle": "dev-master",
"knplabs/knp-menu-bundle": "dev-master",
"knplabs/knp-menu": "2.0.x-dev",
"exercise/elastica-bundle": "dev-master",
"gregwar/captcha-bundle": "dev-master",
"nelmio/api-doc-bundle": "2.1.*",
"fr3d/ldap-bundle": "2.0.*@dev",
"conjecto/easyrdf-bundle": "dev-master"
},
这个安装了树枝1.15，一切正常。手册页面出现错误-Twig_SimpleFunction出现在>1.11和<1.15，不在1.x中。
Twig扩展类没有名称空间。你检查过没有改变吗？
在扩展类中，您应该使用'Twig_SimpleFunction，而不仅仅是Twig_SimpleFunction