我想下载图像并将其保存到使用 dio 和 path_provider 的唯一目录名中。但是我有一个错误：
I/flutter (15977): FileSystemException: Cannot open file,
path = '/data/user/0/com.manga.indonesia.manga.suka/app_flutter/sensei-wa-koi-o-oshie-rarenai-chapter-7-bahasa-indonesia/0.jpg'
我怎样才能制作这个sensei-wa-koi-o-oshie-rarenai-chapter-7-bahasa-indonesia目录？
我的代码：
I/flutter (15977): FileSystemException: Cannot open file,
path = '/data/user/0/com.manga.indonesia.manga.suka/app_flutter/sensei-wa-koi-o-oshie-rarenai-chapter-7-bahasa-indonesia/0.jpg'
如何在 flutter video_player 插件上捕获错误？错误是Source error。发生此错误时，我想显示错误消息。
I/ExoPlayerImpl(31473): Init 98a4284 [ExoPlayerLib/2.9.6] [kenzo, Redmi Note 3, Xiaomi, 23]
E/ExoPlayerImplInternal(31473): Source error.
E/ExoPlayerImplInternal(31473): com.google.android.exoplayer2.source.UnrecognizedInputFormatException: None of the available extractors (MatroskaExtractor, FragmentedMp4Extractor, Mp4Extractor, Mp3Extractor, AdtsExtractor, Ac3Extractor, TsExtractor, FlvExtractor, OggExtractor, PsExtractor, WavExtractor, AmrExtractor) could read the stream.
E/ExoPlayerImplInternal(31473): at com.google.android.exoplayer2.source.ExtractorMediaPeriod$ExtractorHolder.selectExtractor(ExtractorMediaPeriod.java:973)
E/ExoPlayerImplInternal(31473): at com.google.android.exoplayer2.source.ExtractorMediaPeriod$ExtractingLoadable.load(ExtractorMediaPeriod.java:891)
E/ExoPlayerImplInternal(31473): at com.google.android.exoplayer2.upstream.Loader$LoadTask.run(Loader.java:381)
E/ExoPlayerImplInternal(31473): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
E/ExoPlayerImplInternal(31473): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
E/ExoPlayerImplInternal(31473): at java.lang.Thread.run(Thread.java:818)
I/flutter (31473): Another exception was thrown: A ChewieController was used after being disposed.
I/ExoPlayerImpl(31473): Release 98a4284 [ExoPlayerLib/2.9.6] [kenzo, Redmi …flutter ×2