Space blueprint tutorial

Hello
I am trying to do the space-blueprint tutorial. But the plugin does not run properly. The space creation wizard does not appear.

In my browser console I have this error, when I create a new space using my blueprint :
Uncaught Error: wizard points to a non-existent Soy template ‘Confluence.SpaceBlueprints.Example.dialogForm’. Check your web-resources or server logs.

Here is my space-blueprint.js:

AJS.bind("blueprint.wizard-register.ready", function () {
    function submitExampleSpace(e, state) {
        state.pageData.ContentPageTitle = state.pageData.name + " " + AJS.I18n.getText("confluence.blueprints.space.example.home.title.suffix");
        return Confluence.SpaceBlueprint.CommonWizardBindings.submit(e, state);
    }
    function preRenderExampleSpace(e, state) {
        state.soyRenderContext['atlToken'] = AJS.Meta.get('atl-token');
        state.soyRenderContext['showSpacePermission'] = false;
    }
    Confluence.Blueprint.setWizard('com.example.plugins.tutorial.confluence.space-blueprint:example-space-blueprint-item', function(wizard) {
        wizard.on("submit.exampleSpaceId", submitExampleSpace);
        wizard.on("pre-render.exampleSpaceId", preRenderExampleSpace);
        wizard.on("post-render.exampleSpaceId", Confluence.SpaceBlueprint.CommonWizardBindings.postRender);
    });
});

my dialog-page.soy:

{namespace Confluence.SpaceBlueprints.Example}
/**
 * Dialog form template
 *
 * @param atlToken the XSRF token to send with the form
 * @param? fieldErrors the map of errors to display keyed by field name
 * @param? name initial value for the name field
 * @param? key initial value for the key field
 */
{template .dialogForm}
<form action="#" method="post" id="decisions-form" class="common-space-form aui">
    {call Confluence.Templates.Blueprints.CreateSpace.createSpaceFormFields}
        {param showSpacePermission: false /}
        {param fieldErrors: $fieldErrors /}
        {param name: $name /}
        {param key: $key /}
    {/call}
    <input type="hidden" name="atl_token" value="{$atlToken}" />
</form>
{/template}

my pom.xml

<atlassian-plugin key="${atlassian.plugin.key}" name="${project.name}" plugins-version="2">
    <plugin-info>
        <description>${project.description}</description>
        <version>${project.version}</version>
        <vendor name="${project.organization.name}" url="${project.organization.url}" />
        <param name="plugin-icon">images/pluginIcon.png</param>
        <param name="plugin-logo">images/pluginLogo.png</param>
    </plugin-info>

    <!-- add our i18n resource -->
    <resource type="i18n" name="i18n" location="space-blueprint"/>
    
    <!-- add our web resources -->
    <web-resource key="space-blueprint-resources" name="space-blueprint Web Resources">
        <transformation extension="soy">
            <transformer key="soyTransformer">
                <functions>com.atlassian.confluence.plugins.soy:soy-core-functions</functions>
            </transformer>
        </transformation>
        <transformation extension="js">
            <transformer key="jsI18n"/>
        </transformation>

        <resource type="download" name="dialog-page.js" location="/soy/dialog-page.soy"/>

        <dependency>com.atlassian.auiplugin:ajs</dependency>
        
        <resource type="download" name="space-blueprint.css" location="/css/space-blueprint.css"/>
        <resource type="download" name="space-blueprint.js" location="/js/space-blueprint.js"/>
        <resource type="download" name="images/" location="/images"/>

        <context>space-blueprint</context>
    </web-resource>

    <web-item key='example-space-blueprint-item' i18n-name-key='confluence.blueprints.space.example.name'
              section='system.create.space.dialog/content'>
        <description key='confluence.blueprints.space.example.description'/>
        <param name='blueprintKey' value='example-space-blueprint'/>
    </web-item>

    <space-blueprint key="example-space-blueprint" i18n-name-key="confluence.blueprints.space.example.name" category="examples">
        <content-template ref="example-space-homepage-template"/>
        <dialog-wizard key="example-space-blueprint-wizard">
            <dialog-page id="exampleSpaceId"
                         template-key="Confluence.SpaceBlueprints.Example.dialogForm"
                         title-key="confluence.blueprints.space.example.dialog.create.title"
                         description-header-key="confluence.blueprints.space.example.dialog.create.heading"
                         description-content-key="confluence.blueprints.space.example.dialog.create.description"
                         last="true"/>
        </dialog-wizard>
    </space-blueprint>

    <content-template key="example-space-homepage-template" i18n-name-key="confluence.blueprints.space.example.homepage.name">
        <description key="confluence.blueprints.space.example.homepage.desc"/>
        <resource name="template" type="download" location="/xml/example-space-home.xml"/>
    </content-template>

</atlassian-plugin>

My error was in atlassian-plugin.xml. I had :

<context>space-blueprint</context> (default skeleton from the SDK)

instead of :
<context>create-space</context>

But I don’t understand what this context means.