Hi Balaji,
Before uploading packaged zip, Please ensure that

1. Your server is publicly accessible.
2. If you are using PHP, PHP is installed on your server.

If still issue persists, please let us know.
:)

Thanks!
Kush


--- On Thu, 4/9/09, BALAJI KUMARA <balajikumara@...> wrote:

> From: BALAJI KUMARA <balajikumara@...>
> Subject: [yhoomobiledevelopers] error code:19
> To: yhoomobiledevelopers@yahoogroups.com
> Date: Thursday, April 9, 2009, 5:44 AM
> Hi
> I Get the following error when i try upload the
> submission.zip file of twitter example after editing the
> config.xml to point to my app server..
> Any pointers?
> ===========================================================
>
> Sorry, the following error(s) had occured...
>
> * The package is not valid or some files are missing
> (Unable to open /tmp/phpQ7aw03Returned error code:19).
>
> =========================================================
> <?xml version="1.0"
> encoding="UTF-8"?>
> <config
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation="http://mobile.yahoo.com/widgets/schema/1.0/config/
> http://mobile.yahoo.com/widgets/schema/1.0/config/"
> xmlns="http://mobile.yahoo.com/widgets/schema/1.0/config/">
> <title>Twitter Example</title>
> <version>1.0</version>
> <identifier>twitter-example</identifier>
> <description>An example Twitter
> Widget.</description>
> <icon>icon</icon>
> <author organization="Balaji"
> href="http://www.balaji.com"
> email="me@...">
> Balaji
> </author>
>
> <!-- change this widget base to your server url -->
> <widget
> base="http://********/twitter_sample">
> <preview>
> <icon>icon</icon>
> <label>Twitter!</label>
> </preview>
>
> <shortcuts>
> <item default="true">
> <label>Open</label>
> <href>index.php</href>
> </item>
> </shortcuts>
> </widget>
>
> </config>
>
> Thanks in advance
> BALAJI KUMARA