Comment # 6 on bug 73615 from promeneur

and this

libebook-1.2.so not found (tried major versions 5 to 62)
libebook-1.2.so not found (tried major versions 5 to 62)
libecal-1.2.so not found (tried major versions 3 to 60)
libecal-1.2.so not found (tried major versions 3 to 60)