Android Virtuel Device

Salut les informaticiens,

j'ai essayer d'executé une application dans mon AVD mais il m'apparait une ensemble de logs que je ne comprend pas leur sens:

08-01 19:06:19.059 601-601/formationrs.rrapp D/dalvikvm﹕ Not late-enabling CheckJNI (already on)
08-01 19:06:20.328 601-606/formationrs.rrapp I/dalvikvm﹕ threadid=3: reacting to signal 3
08-01 19:06:20.578 601-606/formationrs.rrapp E/dalvikvm﹕ Unable to open stack trace file '/data/anr/traces.txt': Is a directory
08-01 19:06:20.848 601-606/formationrs.rrapp I/dalvikvm﹕ threadid=3: reacting to signal 3
08-01 19:06:20.888 601-606/formationrs.rrapp I/dalvikvm﹕ Wrote stack traces to '/data/anr/traces.txt'
08-01 19:06:21.348 601-606/formationrs.rrapp I/dalvikvm﹕ threadid=3: reacting to signal 3
08-01 19:06:21.388 601-606/formationrs.rrapp I/dalvikvm﹕ Wrote stack traces to '/data/anr/traces.txt'
08-01 19:06:22.418 601-601/formationrs.rrapp D/gralloc_goldfish﹕ Emulator without GPU emulation detected.
08-01 19:06:22.648 601-606/formationrs.rrapp I/dalvikvm﹕ threadid=3: reacting to signal 3
08-01 19:06:22.668 601-606/formationrs.rrapp I/dalvikvm﹕ Wrote stack traces to '/data/anr/traces.txt'