title: My plugin doesn't show up in Eclipse "Show view"
body: <p>I created my first Eclipse plugin.
  Plugin has one view.</p>
  
  <p>When I ran my plugin project(Overview>Testing section>Launch an Eclipse application), it shows in Eclipse workbench and "Show view" menu.</p>
  
  <p>Then I copy &amp; paste exported plugin jar file to Eclipse's plugins folder.</p>
  
  <p>Unfortunately I can't found my plugin view in Show view menu.</p>
  
  <p>I also paste dropins and dropins/plugins folder.
  But it doesn't works.</p>
  
  <hr>
  
  <p>OS : Windows 7</p>
  
  <p>Eclipse : Eclipse Java EE IDE for Web Developers [Kepler Service Release 2]</p>
  
  <p><strong>plugin.xml</strong></p>
  
  <pre><code>    &lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;?eclipse version="3.4"?&gt;
  &lt;plugin&gt;
     &lt;extension
           point="org.eclipse.ui.views"&gt;
        &lt;category
              name="String Table"
              id="com.andcontinue.stringtable"&gt;
        &lt;/category&gt;
        &lt;view
              name="String Table"
              icon="icons/sample.gif"
              category="com.andcontinue.stringtable"
              class="com.andcontinue.stringtable.views.StringTable"
              id="com.andcontinue.stringtable.views.StringTable"&gt;
        &lt;/view&gt;
     &lt;/extension&gt;
     &lt;extension
           point="org.eclipse.help.contexts"&gt;
        &lt;contexts
              file="contexts.xml"&gt;
        &lt;/contexts&gt;
     &lt;/extension&gt;
  
  &lt;/plugin&gt;
  </code></pre>
  
  <p>I don't know why plugin be not displayed in Show view.</p>
  
  <p><strong>Other references</strong></p>
  
  <p><strong>build.properties</strong></p>
  
  <pre><code>source.. = src/
  output.. = bin/
  bin.includes = plugin.xml,\
                  .,\
                  contexts.xml,\
                  icons/,\
                  META-INF/,\
                  .classpath,\
                  src/,\
  </code></pre>
  
  <p><strong>MANIFEST.MF</strong></p>
  
  <pre><code>Manifest-Version: 1.0
  Bundle-ManifestVersion: 2
  Bundle-Name: String Table
  Bundle-SymbolicName: (MyPackage);singleton:=true
  Bundle-Version: 1.0.0
  Bundle-Activator: (MyPackage).Activator
  Bundle-Vendor: Vendor
  Require-Bundle: org.eclipse.ui,
   org.eclipse.core.runtime,
   org.eclipse.core.resources;bundle-version="3.8.101",
   org.eclipse.jdt.core;bundle-version="3.9.2"
  Bundle-ActivationPolicy: lazy
  Export-Package: (MyPackage),
   (MyPackage).views
  Import-Package: org.eclipse.jface.text
  Bundle-ClassPath: .
  Bundle-RequiredExecutionEnvironment: JavaSE-1.6
  </code></pre>
  
  <p>Please help me.</p>
  
  <p>Thank you.</p>