4aa1ca52_EECS_SERVERS__Symptom
[Solution] Cadence locks files so that files are not edited by two independent copies of Cadence. However, sometimes lock files are not correctly removed. In this case you may get a message like "Couldn't get a write lock for..." If you are sure that your files are not opened in another instance of Cadence you can use the command rmcadencelock to delete the offending lock files. [Symptom] 
Cadence says my files are locked! How do I fix this?
EECS SERVERS
Symptom