Fix #523

project/plugins.sbt

@@ -1,5 +1,5 @@
 resolvers += Resolver.url("scalasbt releases", new URL("http://scalasbt.artifactoryonline.com/scalasbt/sbt-plugin-snapshots"))(Resolver.ivyStylePatterns)
-addSbtPlugin("com.hanhuy.sbt" % "android-sdk-plugin" % "1.5.12")
+addSbtPlugin("com.hanhuy.sbt" % "android-sdk-plugin" % "1.5.13")
 
 resolvers += "Sonatype snapshots" at "https://oss.sonatype.org/content/repositories/snapshots/"
 addSbtPlugin("com.github.mpeltonen" % "sbt-idea" % "1.7.0-SNAPSHOT")

src/main/scala/com/github/shadowsocks/ShadowsocksSettings.scala

@@ -144,7 +144,11 @@ class ShadowsocksSettings extends PreferenceFragment with OnSharedPreferenceChan
       web.loadUrl("file:///android_asset/pages/about.html")
       web.setWebViewClient(new WebViewClient() {
         override def shouldOverrideUrlLoading(view: WebView, url: String): Boolean = {
-          startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)))
+          try {
+            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)))
+          } catch {
+            case _: android.content.ActivityNotFoundException => // Ignore
+          }
           true
         }
       })