Please specify a concrete buildpack for your application when the following error occurs:
Server error, status code: 400, error code: 170003, message: An app was not successfully detected by any available buildpack
You can find a list of available buildpacks in the cloud foundry community wiki.
An example of a push command would be:
cf push -b http://github.com/cloudfoundry/java-buildpack APP_NAME
For more information on how to specify buildpacks within your application's manifest please refer to our deployment manifest blog article.
For more information on buildpacks in general please have a look at the official Cloud Foundry documentation.