Exception in thread "main" java.lang.NoClassDefFoundError: com/intellij/openapi/util/SystemInfo

when i get install  ./phpstorm.sh

i found the below exception and my java -version is 

java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)

exception is :- 

Exception in thread "main" java.lang.NoClassDefFoundError: com/intellij/openapi/util/SystemInfo
at com.intellij.idea.Main.main(Main.java:72)
Caused by: java.lang.ClassNotFoundException: com.intellij.openapi.util.SystemInfo
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 1 more