TYPO3 Exception 1395614959


Below, the TYPO3 community may have provided additional information or solutions for this exception. However, these may or may not apply to your particular case. If you can provide more information, you should come back here and add your experience and solution steps to this issue once you have resolved it.

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Version number in composer manifest of package "..." is missing or invalid

This happens in TYPO3 6.2 whenever an extension has a dependency on another extension which contains a file composer.json without any version number (which is actually the best practice).

Simple solution for the time being since composer is not properly supported in TYPO3 6.2 is to delete the corresponding file composer.json or to explicitly set a version number.