[native_pdf_view] Fatal error on MacOS

[spikelucky]

Fatal error: Unexpectedly found nil while unwrapping an Optional value: file native_pdf_renderer/NativePdfRendererPlugin.swift, line 60 Lost connection to device.

I'm using native_pdf_view I've been using the same code for a web app and it worked fine, but on MacOS I get the error. It seems to be crashing while initialising the PdfController.

[SergeShkurko]

Please retry with last version [native_pdf_view] v5.0.0

[spikelucky]

I still get the error on MacOS: Fatal error: Unexpectedly found nil while unwrapping an Optional value: file native_pdf_renderer/NativePdfRendererPlugin.swift, line 60 Lost connection to device.

I'll try it on Windows as soon as I get a chance to get on a windows pc.

[SergeShkurko]

I still get the error on MacOS: Fatal error: Unexpectedly found nil while unwrapping an Optional value: file

i cant reproduce bug on macOS Which version of flutter and nacOS you usage? What time What do you do at the time of departure? Can you attach a pdf file with which your application crashes? what additional arguments are you using?

[SergeShkurko]

If you use renderer:

renderer: (PdfPage page) => page.render(
  width: page.width * 2,
  height: page.height * 2,

  format: PdfPageFormat.WEBP, <--

  backgroundColor: '#FFFFFF',
),

MacOs does not support PdfPageFormat.WEBP when i try usage it i handle same error:

Try specify PdfPageFormat.JPEG

[spikelucky]

I tried on both the stable and dev flutter channels. I'll try that direct edit in the renderer next, not sure how to do this though.

[spikelucky]

it already looked like this:

/// Default PdfRenderer options static Future<PdfPageImage?> _render(PdfPage page) => page.render( width: page.width * 2, height: page.height * 2, format: PdfPageFormat.JPEG, backgroundColor: '#ffffff', );

[spikelucky]

Also this catch is in the renderer code: async { if (format == PdfPageFormat.WEBP && (UniversalPlatform.isIOS || UniversalPlatform.isWindows)) { throw PdfNotSupportException( 'PDF Renderer on IOS & Windows platforms do not support WEBP format', ); }

but is error isn't being invoked

[spikelucky]

Fatal error: Unexpectedly found nil while unwrapping an Optional value: file native_pdf_renderer/NativePdfRendererPlugin.swift, line 60 Lost connection to device. Exited (sigterm)

Looking at the file and line mentioned in the error the line reads: result(documents.register(renderer: renderer!).infoMap as NSDictionary)

the whole function:

func openDocumentAssetHandler(call: FlutterMethodCall, result: @escaping FlutterResult) -> Void {
    guard let name = call.arguments as! String? else {
        return result(FlutterError(code: "RENDER_ERROR",
                                   message: "Arguments not sended",
                                   details: nil))
    }
    let renderer = openAssetDocument(name: name)
    result(documents.register(renderer: renderer!).infoMap as NSDictionary)
}

I wonder if that nullcheck (renderer!) for some reason returns nil here

[SergeShkurko]

Problem throws after run builded release (flutter build, then run) or on local dev run (flutter run) ?

[mprogers]

Has this been resolved? I just ran into this same error ...