keytool error :java.io.IoException:Incorrect AVA format

Question

I am new to Android development; when I have been trying to sign the application I have got the following error. Can anyone help me on this issue?

keytool error          


        

Answer 1

this "Probably you entered illegal character(something like ,(comma)) in a field for Name, Organization or somewhere else. " worked for me. I had a comma on the state or province. please mark this answer by rule as the answer; as + in +91 is a special character.

Answer 2

I solved these Exception by changing the country code:

+91 to India

Answer 3

I came on this error when I did not set the distinguished name option at all. This was corrected by setting the option to a validly formatted string.

this command failed with the AVA format exception: (line breaks added for legibility)

C:\Program Files\Java\jdk1.6.0_45\jre\bin>keytool 
-genkey -v -dname PatrickTaylor -validity 10000 
-keystore C:\drops\patrickkeystore 

this command completed successfully:

C:\Program Files\Java\jdk1.6.0_45\jre\bin>keytool 
-genkey -v -dname PatrickTaylor -validity 10000 
-keystore C:\drops\patrickkeystore 
-dname "cn=Patrick Taylor, ou=engineering, o=company, c=US"

Answer 4

Probably you entered illegal character(something like,(comma)) in a field for Name, Organization or somewhere else.

Of course, if you really want some character can be escaped with \ sign

"+" (plus sign) sign also causes this issue. (People often tend to use + sign for the country code field)

Answer 5

I have faced an error while trying to export a signed .apk file with Eclipse ADT. The error was same like your error. In my case, I used a + sign before the country code. By removing the + sign from this name fixed the problem and allowed me to fully export my signed .apk file. Also, this error can occur when use comma,slash, semi-colon, quotation.

Answer 6

You tried to use special characters while exporting apk.You can't use these special characters in any field shown while creating the apk. The special character set includes:

• Commas (,)
• Addition symbol (+)
• Quotation mark (")
• Back-slash ("\")
• Angled brackets(< and >)
• Semi-colon (;)