Eclipse, ADT, strings.xml and java.lang.NullPointerException

July 22nd, 2010

On a clean installation of Eclipse and the Android Development Tools (ADT), and for a new Android project, when trying to edit the strings.xml file, a java.lang.NullPointerException is thrown.

To fix the problem, edit strings.xml directly, bypassing the GUI, by double clicking the file in the Eclipse workbench, then selecting strings.xml from the tab at the bottom. Then, replace the line that reads:

<resources>

with

<resources xmlns:android="http://schemas.android.com/apk/res/android">

Posted in Android | 10 Comments »

10 Responses to “Eclipse, ADT, strings.xml and java.lang.NullPointerException”

  1. Chris Stahl Says:
    August 3rd, 2010 at 9:27 PM

    First off, thank you for the tip! I got tired of trying to type a single letter and then acknowledge the error.

    Secondly, how and why does this work and will I need to do this with every project that I create?

  2. Cricket La Chica Says:
    August 18th, 2010 at 7:34 PM

    This was very helpful, thank you! May I second Chris Stahl’s question and ask how this fixed the problem?

  3. Benny Bottema Says:
    August 24th, 2010 at 8:43 PM

    Thank you!

    How did you find out about this though?

  4. Matt Says:
    August 24th, 2010 at 10:16 PM

    Had the same issue before and I found the fix because I had a sample project that the error didnt happen to and noticed that xmlns attribute. Im guessing the poster noticed it the same way.

  5. pradep Says:
    September 9th, 2010 at 5:09 PM

    Until then, go to the XML/XML Files/Editor preference page and turn
    off the “Use inferred grammar…” setting. It should only affect
    content assist and possibly some of the Outline view and Design page’s
    context menu actions. Or refer to a DTD or XML Schema in the XML
    file. We’ll have this corrected in Helios SR1/WTP 3.2.2.

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