I/System.out(31701): Attempt to invoke virtual method 'android.content.res.Resources android.app.Activity.getResources()' on a null object reference
W/System.err(31701): java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources android.app.Activity.getResources()' on a null object reference
W/System.err(31701): at pt.tribeiro.flutter_plugin_pdf_viewer.FlutterPluginPdfViewerPlugin.getPage(FlutterPluginPdfViewerPlugin.java:128)
W/System.err(31701): at pt.tribeiro.flutter_plugin_pdf_viewer.FlutterPluginPdfViewerPlugin.access$100(FlutterPluginPdfViewerPlugin.java:28)
W/System.err(31701): at pt.tribeiro.flutter_plugin_pdf_viewer.FlutterPluginPdfViewerPlugin$1.run(FlutterPluginPdfViewerPlugin.java:68)
W/System.err(31701): at android.os.Handler.handleCallback(Handler.java:873)
W/System.err(31701): at android.os.Handler.dispatchMessage(Handler.java:99)
W/System.err(31701): at android.os.Looper.loop(Looper.java:193)
W/System.err(31701): at android.os.HandlerThread.run(HandlerThread.java:65)
Can you suggest me to solve this?