android apk signing using jarsigner in eclipse ant build task give error "please specify alias name"

Question

I am trying to add some custom build steps to eclipse build when build my android project.

For this I have added a new ant build task to Project Properties->Builders

The ant build unpacks the apk, changes some files, zips it back, and then use jarsigner to sign it.

However I am getting "please specify alias name" when it tries to sign using jarsigner. If I do this outside the eclipse this works properly.

Any help is really appreciated. I am struggling on this for two days now.

Ant task

<exec executable="C:\Program Files\Java\jdk1.7.0_03\bin\jarsigner.exe" dir="E:\Android\trunk\Source">
    <arg value=" -verbose -sigalg MD5withRSA -digestalg SHA1 -keystore &quot;E:\Android\trunk\Builder\MyKeyStore&quot; -storepass &quot;password&quot; -keypass &quot;password&quot; &quot;E:\Android\trunk\Source\bin\MyProject.apk&quot; keystorealias" />
</exec>

Output

 [exec] 
 [exec] Please type jarsigner -help for usage
 [exec] Please specify alias name
 [exec] Result: 1

Lasith Jayaratna Lasith Jayaratna · Accepted Answer · 2014-02-01T16:59:52

Found a way to do it and thought of posting so that it could help others. I used SignJar ant task. It works without any issue with the same set of arguments.

android apk signing using jarsigner in eclipse ant build task give error "please specify alias name"

1 Answers