Unable to import extension - Unable to process import: jcifs/smb/SmbFileInputStream

Developed a custom extension which is using JCIFS library. While trying to import into Thingworx getting following error, 

1. *** Unable to create resource instance in Resource:SMBUtilities
2. Unable To Create Resource Instance From Class: SMBUtilities
3. Unable to process import: jcifs/smb/SmbFileInputStream
4. Unable to delete SMBFileReader:1.0.0. This is likely due to other errors: ExtensionPackage SMBFileReader Does Not Exist

• SMBFileReader is a Extention name (Eclipse project)
• SMBUtilities is Resource name created in Extension

Application log attached.

Need help on this issue? How to address this issue?