Github user vladimir-kotikov commented on the pull request: https://github.com/apache/cordova-wp8/pull/39#issuecomment-50854468 Hi @purplecabbage . I can't repro your issue with cordova-wp8 checked to this commit and latest cordova-cli/lib. Anyway, i've tried to change app version in config.xml and fount that build fails with similar message `Manifest validation failed: AppManifestInvalidVersion` when version string length > 10. See following screenshots:   Could you pls check this in your project?
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