Mediaplugin: ArgumentNullException on iOS

Created on 17 May 2018 · 6Comments · Source: jamesmontemagno/MediaPlugin

Bug Information

Version Number of Plugin: 3.1.3
Device Tested On: iPad
Simulator Tested On:
Version of VS: 2017
Version of Xamarin: 2.5.1.444934
Versions of other things you are using:

Steps to reproduce the Behavior

        if (!CrossMedia.Current.IsPickPhotoSupported)
        {
            App.DisplayAlert("Photos Not Supported", ":( Permission not granted to photos.", "OK");
            return;
        }

        var file = await Plugin.Media.CrossMedia.Current.PickPhotoAsync(new Plugin.Media.Abstractions.PickMediaOptions
        {
            PhotoSize = Plugin.Media.Abstractions.PhotoSize.Medium,

        });

Expected Behavior

Actual Behavior

Image picker is displayed, but once you select an image...

2018-05-17 12:16:10.141 SkiaDraw.iOS[350:31646] Unable to get metadata: System.ArgumentNullException: Value cannot be null.
Parameter name: asset
at Photos.PHImageManager.RequestImageData (Photos.PHAsset asset, Photos.PHImageRequestOptions options, Photos.PHImageDataHandler handler) [0x00087] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.10.1.177/src/Xamarin.iOS/Photos/PHImageManager.g.cs:169
at Plugin.Media.PhotoLibraryAccess.GetPhotoLibraryMetadata (Foundation.NSUrl url) [0x0004c] in :0
at Plugin.Media.MediaPickerDelegate+d__25.MoveNext () [0x00305] in :0

Code snippet

Screenshots

Source

CesareSoldani

👍2

Most helpful comment

Same, this bug also happen on 3.1.2 but only on iOS.
For temporary workaround for this issue, you can set SaveMetaData for PickMediaOptions to false.

lucky-c on 2 Aug 2018

👍5 ❤2

All 6 comments

Verified, same behavior using 4.0.0.9 and 3.1.3.

Video upload from library works fine.

Running on iOS 11.4

Vladis466 on 20 Jun 2018

Same, this bug also happen on 3.1.2 but only on iOS.
For temporary workaround for this issue, you can set SaveMetaData for PickMediaOptions to false.

lucky-c on 2 Aug 2018

👍5 ❤2

What is in your info.plist?

jamesmontemagno on 2 Aug 2018

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>UIDeviceFamily</key> <array> <integer>1</integer> <integer>2</integer> </array> <key>UISupportedInterfaceOrientations</key> <array> <string>UIInterfaceOrientationPortrait</string> <string>UIInterfaceOrientationLandscapeLeft</string> <string>UIInterfaceOrientationLandscapeRight</string> </array> <key>UISupportedInterfaceOrientations~ipad</key> <array> <string>UIInterfaceOrientationPortrait</string> <string>UIInterfaceOrientationPortraitUpsideDown</string> <string>UIInterfaceOrientationLandscapeLeft</string> <string>UIInterfaceOrientationLandscapeRight</string> </array> <key>MinimumOSVersion</key> <string>11.3</string> <key>CFBundleDisplayName</key> <string>SkiaDraw</string> <key>CFBundleIdentifier</key> <string>com.companyname.SkiaDraw</string> <key>CFBundleVersion</key> <string>1.0</string> <key>CFBundleIconFiles</key> <array> <string>Icon-60@2x</string> <string>Icon-60@3x</string> <string>Icon-76</string> <string>Icon-76@2x</string> <string>Default</string> <string>Default@2x</string> <string>Default-568h@2x</string> <string>Default-Portrait</string> <string>Default-Portrait@2x</string> <string>Icon-Small-40</string> <string>Icon-Small-40@2x</string> <string>Icon-Small-40@3x</string> <string>Icon-Small</string> <string>Icon-Small@2x</string> <string>Icon-Small@3x</string> </array> <key>UILaunchStoryboardName</key> <string>LaunchScreen</string> </dict> <key>NSCameraUsageDescription</key> <string>This app needs access to the camera to take photos.</string> <key>NSPhotoLibraryUsageDescription</key> <string>This app needs access to photos.</string> <key>NSMicrophoneUsageDescription</key> <string>This app needs access to microphone.</string> <key>NSPhotoLibraryAddUsageDescription</key> <string>This app needs access to the photo gallery.</string> </plist>

Hmm, wont let me paste xml nicely, what are you looking for?

CesareSoldani on 3 Aug 2018

Same here with 4.0.1.5 on iOS

_Unable to get metadata: System.ArgumentNullException: Value cannot be null.
Parameter name: asset
at Photos.PHImageManager.RequestImageData (Photos.PHAsset asset, Photos.PHImageRequestOptions options, Photos.PHImageDataHandler handler) [0x00003] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.14.0.14/src/Xamarin.iOS/Photos/PHImageManager.g.cs:152
at Plugin.Media.PhotoLibraryAccess.GetPhotoLibraryMetadata (Foundation.NSUrl url) [0x0004c] in <390f35b1db5e43b894d803204ceef8a9>:0
at Plugin.Media.MediaPickerDelegate+d__25.MoveNext () [0x00319] in <390f35b1db5e43b894d803204ceef8a9>:0_

Using _SaveMetaData = false_ as propose by @lucky-c fixed it, thanks!

K232 on 5 Sep 2018

Same, this bug also happen on 3.1.2 but only on iOS.
For temporary workaround for this issue, you can set SaveMetaData for PickMediaOptions to false.

Thanks @lucky-c, it worked for me.