only one alias can be specified
Please type jarsigner -help for usage
HELP ME 
Hi there,
did you find any solution for this error, because I am facing it also.
Thank you
Hello,
post your string in console for keytool and jarsigner.
Best regards, anna-liebt
I clear the Java cache and it works now.
Thank you for your time.
I was getting the same error.
I resolved it by renaming the folders in my path
c:\New folder\ replaced with c:\New_folder
jarsigner doesn’t like spaces in folders