ERROR: Asset package include 'C:\Android\android-sdk\platforms\android-19\android.jar' not found

Generating R file. Error
W/asset (11764): Asset path C:\Android\android-sdk\platforms\android-19\android.jar is neither a directory nor file (type=1).
ERROR: Asset package include 'C:\Android\android-sdk\platforms\android-19\android.jar' not found.

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