“Keytool” command not found

#1

hi guys i m new in ionic
i have made unsigned apk for my project and need to sign in
but key tool command showing the error below:

keytool : The term 'keytool' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the
name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ keytool
+ ~~~~~~~
    + CategoryInfo          : ObjectNotFound: (keytool:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

but i have jdk install and have keytool in

C:\Program Files\Java\jdk1.8.0_181\bin

and my project is in folder

F:\Project 2\eZeeHR

is this issue for environment?
how to solve that please help step by step

thanks,