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  1. #1
    Sencha Premium Member
    Join Date
    Apr 2011

    Default First try with open tooling: java null pointer exception

    My first test with npm fails with this error:

    after generating an app when I issue

    npm start

    I get the error:

    C:\infoline\Frameworks\Ouverture\infoline-querybuilder\frontend\node_modules\@sencha\cmd\dist\plugin.xml:378: The following error occurred while executing this line:
    C:\infoline\Frameworks\Ouverture\infoline-querybuilder\frontend\node_modules\@sencha\cmd\dist\ant\build\app\build-impl.xml:253: The following error occurred while executing this line:
    C:\infoline\Frameworks\Ouverture\infoline-querybuilder\frontend\node_modules\@sencha\cmd\dist\ant\build\app\watch-impl.xml:91: The following error occurred while executing this line:
    C:\infoline\Frameworks\Ouverture\infoline-querybuilder\frontend\node_modules\@sencha\cmd\dist\ant\build\app\watch-impl.xml:13: java.lang.NullPointerException
    at com.sencha.ant.AntScript.execute(
    at com.sencha.command.plugin.PluginManager.execute(
    at com.sencha.command.plugin.PluginManager.executeReverseFirst(
    at com.sencha.command.environment.BuildEnvironment.execute(
    at com.sencha.command.environment.AppOrPackageEnvironment.execute(
    at com.sencha.command.BasePluginCommands$BasePluginCommand.doExecute(
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.sencha.util.MethodInvoker$Arguments.invoke(
    at com.sencha.cli.Command.dispatch(
    at com.sencha.command.BasePluginCommands$BasePluginCommand.dispatch(
    at com.sencha.cli.Commands.dispatch(
    at com.sencha.cli.Commands.dispatch(
    at com.sencha.command.Sencha.dispatch(
    at com.sencha.command.Sencha.main(
    Caused by: The following error occurred while executing this line:

    On the other hand, on the very same folder the command: sencha app build works without problems

    jdk 8
    windows 10 machine


  2. #2
    Sencha Premium User sdodierl's Avatar
    Join Date
    Oct 2017


    I don't work for Sencha but, to help you when they eventually get around to reading this post, you might want to include the full build log that might have been made in your folder. It's that log that will allow finding the original error leading to this crash.
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  3. #3
    Sencha Premium Member
    Join Date
    Apr 2011


    Thanks for your suggestion
    The above snippet is ideed from the build log, but I will look for the full version.
    I don't expect any help form sencha, tough, the "not-ticket-based" forum support is practically dead

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