improve exception message if symfony/security-csrf is missing
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@ -59,7 +59,7 @@ class FormRenderer implements FormRendererInterface
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public function renderCsrfToken($tokenId)
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{
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if (null === $this->csrfTokenManager) {
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throw new BadMethodCallException('CSRF tokens can only be generated if a CsrfTokenManagerInterface is injected in FormRenderer::__construct().');
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throw new BadMethodCallException('CSRF tokens can only be generated if a CsrfTokenManagerInterface is injected in FormRenderer::__construct(). Try running "composer require symfony/security-csrf".');
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}
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return $this->csrfTokenManager->getToken($tokenId)->getValue();
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