npm list = "UNMET DEPENDENCY". k, npm install module. same module now becomes "extraneous"

gistfile1.txt

shark@0.0.1 /var/lib/jenkins/workspace/shark
├─┬ express@2.4.6 
│ ├─┬ connect@1.8.0 
│ │ └── UNMET DEPENDENCY formidable 1.0.x
│ ├── mime@1.2.4 
│ └── qs@0.3.2 
├── hiredis@0.1.12 
├─┬ optimist@0.2.6 
│ └── wordwrap@0.0.2 
├── redis@0.6.7 
└── underscore@1.1.7 
nginx1-qa:/var/lib/jenkins/workspace/shark# npm install formidable
formidable@1.0.7 ./node_modules/formidable 
nginx1-qa:/var/lib/jenkins/workspace/shark# npm list
shark@0.0.1 /var/lib/jenkins/workspace/shark
├─┬ express@2.4.6 
│ ├── connect@1.8.0 
│ ├── mime@1.2.4 
│ └── qs@0.3.2 
├── formidable@1.0.7  extraneous
├── hiredis@0.1.12 
├─┬ optimist@0.2.6 
│ └── wordwrap@0.0.2 
├── redis@0.6.7 
└── underscore@1.1.7