Checking prerequisites for NanoID generation.

src/MiniDocs/NanoID.class.st

@@ -25,7 +25,7 @@ NanoID class >> binaryFile [
 
 { #category : #accessing }
 NanoID class >> generate [
-
+	self binaryFile exists ifFalse: [ NanoID install].
 	OSSUnixSubprocess new
 		command: self binaryFile fullName;
 		redirectStdout;