Hey Leute,

will mich nun seit langem mal wieder mit Contao beschäftigen.
Also ne neue Site auf meim Windoof Server 2012 erstellt, alles raufkopiert, Rechte verteilt, Check gestartet und installiert.
Beide Checks waren perfekt

Nun wollte ich noch den Composer mitinstallieren und bekomme danach folgenden Fehler angezeigt! Was muss ich tun?!

Danke schonmal für eventuelle Hilfe

Code:
Warning: fopen(): Filename cannot be empty in phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Pipes/WindowsPipes.php on line 55

#0 [internal function]: __error(2, 'fopen(): Filena...', 'phar://D:/inetp...', 55, Array)
#1 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Pipes/WindowsPipes.php(55): fopen('', 'rb')
#2 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Pipes/WindowsPipes.php(172): Symfony\Component\Process\Pipes\WindowsPipes->__construct(false, NULL)
#3 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Process.php(1253): Symfony\Component\Process\Pipes\WindowsPipes::create(Object(Symfony\Component\Process\Process), NULL)
#4 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Process.php(275): Symfony\Component\Process\Process->getDescriptors()
#5 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Process.php(208): Symfony\Component\Process\Process->start(Array)
#6 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/src/Composer/Util/ProcessExecutor.php(62): Symfony\Component\Process\Process->run(Array)
#7 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/src/Composer/Package/Loader/RootPackageLoader.php(197): Composer\Util\ProcessExecutor->execute('git describe --...', NULL)
#8 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/src/Composer/Package/Loader/RootPackageLoader.php(178): Composer\Package\Loader\RootPackageLoader->guessGitVersion(Array)
#9 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/src/Composer/Package/Loader/RootPackageLoader.php(58): Composer\Package\Loader\RootPackageLoader->guessVersion(Array)
#10 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/src/Composer/Factory.php(270): Composer\Package\Loader\RootPackageLoader->load(Array)
#11 D:\inetpub\wwwroot\contao\system\modules\!composer\src\Runtime.php(477): Composer\Factory->createComposer(Object(Composer\IO\BufferIO))
#12 D:\inetpub\wwwroot\contao\system\modules\!composer\src\ClientBackend.php(308): ContaoCommunityAlliance\Contao\Composer\Runtime::createComposer(Object(Composer\IO\BufferIO))
#13 D:\inetpub\wwwroot\contao\system\modules\!composer\src\ClientBackend.php(125): ContaoCommunityAlliance\Contao\Composer\ClientBackend->loadComposer()
#14 D:\inetpub\wwwroot\contao\system\modules\core\classes\Backend.php(415): ContaoCommunityAlliance\Contao\Composer\ClientBackend->generate()
#15 D:\inetpub\wwwroot\contao\system\modules\core\controllers\BackendMain.php(135): Contao\Backend->getBackendModule('composer')
#16 D:\inetpub\wwwroot\contao\contao\main.php(22): Contao\BackendMain->run()
#17 {main}


Fatal error: Uncaught exception Symfony\Component\Process\Exception\RuntimeException with message A temporary file could not be opened to write the process output to, verify that your TEMP environment variable is writable thrown in phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Pipes/WindowsPipes.php on line 57

#0 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Pipes/WindowsPipes.php(172): Symfony\Component\Process\Pipes\WindowsPipes->__construct(false, NULL)
#1 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Process.php(1253): Symfony\Component\Process\Pipes\WindowsPipes::create(Object(Symfony\Component\Process\Process), NULL)
#2 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Process.php(275): Symfony\Component\Process\Process->getDescriptors()
#3 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/vendor/symfony/process/Symfony/Component/Process/Process.php(208): Symfony\Component\Process\Process->start(Array)
#4 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/src/Composer/Util/ProcessExecutor.php(62): Symfony\Component\Process\Process->run(Array)
#5 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/src/Composer/Package/Loader/RootPackageLoader.php(197): Composer\Util\ProcessExecutor->execute('git describe --...', NULL)
#6 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/src/Composer/Package/Loader/RootPackageLoader.php(178): Composer\Package\Loader\RootPackageLoader->guessGitVersion(Array)
#7 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/src/Composer/Package/Loader/RootPackageLoader.php(58): Composer\Package\Loader\RootPackageLoader->guessVersion(Array)
#8 phar://D:/inetpub/wwwroot/contao/composer/composer.phar/src/Composer/Factory.php(270): Composer\Package\Loader\RootPackageLoader->load(Array)
#9 D:\inetpub\wwwroot\contao\system\modules\!composer\src\Runtime.php(477): Composer\Factory->createComposer(Object(Composer\IO\BufferIO))
#10 D:\inetpub\wwwroot\contao\system\modules\!composer\src\ClientBackend.php(308): ContaoCommunityAlliance\Contao\Composer\Runtime::createComposer(Object(Composer\IO\BufferIO))
#11 D:\inetpub\wwwroot\contao\system\modules\!composer\src\ClientBackend.php(125): ContaoCommunityAlliance\Contao\Composer\ClientBackend->loadComposer()
#12 D:\inetpub\wwwroot\contao\system\modules\core\classes\Backend.php(415): ContaoCommunityAlliance\Contao\Composer\ClientBackend->generate()
#13 D:\inetpub\wwwroot\contao\system\modules\core\controllers\BackendMain.php(135): Contao\Backend->getBackendModule('composer')
#14 D:\inetpub\wwwroot\contao\contao\main.php(22): Contao\BackendMain->run()
#15 {main}