关于properties文件中的读取参数错误

这是properties中的内容
#SUBJECT
SUBJECT=xss
#licPath
licPath=f:\xss\certfile.cer
#priPath
priPath=F:\xss\privateKeys.store
##########license content###########
后台报错
java.io.FileNotFoundException: F:\xss\privateKeys.store
at de.schlichtherle.license.AbstractKeyStoreParam.getStream(Unknown Source)
at de.schlichtherle.license.LicenseNotary.getKeyStore(Unknown Source)
at de.schlichtherle.license.LicenseNotary.getPrivateKey(Unknown Source)
at de.schlichtherle.license.LicenseNotary.sign(Unknown Source)
at de.schlichtherle.license.LicenseNotary.sign(Unknown Source)
at de.schlichtherle.license.LicenseManager.create(Unknown Source)
at de.schlichtherle.license.LicenseManager.store(Unknown Source)
at de.schlichtherle.license.LicenseManager.store(Unknown Source)
可是那个路径下的文件分明是有的，不知道为什么java会报错

加双反斜杠licPath=f:\xss\certfile.cer

这是我那些代码和properties文件路径的截图，麻烦大神们指点一下