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很多人在Deepin 20 Linux系统下进行某些操作时可能出现提示：Cannot open libmwv206dec.so, libmwv206dec.so: 无法打开共享对象文件: 没有那个文件或目录（cannot open shared object file: No such file or directory）。这个问题在Deepin 20、20.1版本中都有存在，目前来说，似乎没有人给出正确的处理方法，但是不管它也没有其它的异常，如果你偶到了该问题，那就先放一放，不用管它。
错误截图示例
错误示例一 $ remmina --gtk-debug=true (org.remmina.Remmina:21928): GLib-GObject-CRITICAL **: 09:51:22.493: g_value_set_boxed: assertion 'G_VALUE_HOLDS_BOXED (value)' failed StatusNotifier/Appindicator support: your desktop does support it and libappindicator is compiled in remmina. Good! (org.remmina.Remmina:21928): Gtk-WARNING **: 09:51:22.645: gtk_menu_attach_to_widget(): menu already attached to GtkMenuItem [09:51:24:147] [21928:21956] [INFO][com.freerdp.client.common.cmdline] - loading channelEx cliprdr [09:51:24:147] [21928:21956] [INFO][com.freerdp.client.common.cmdline] - loading channelEx drdynvc Cannot open libmwv206dec.so, libmwv206dec.so: 无法打开共享对象文件: 没有那个文件或目录 (org.remmina.Remmina:21928): GLib-GObject-WARNING **: 09:51:34.519: instance with invalid (NULL) class pointer (org.remmina.Remmina:21928): GLib-GObject-CRITICAL **: 09:51:34.519: g_signal_handlers_disconnect_matched: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed (org.remmina.Remmina:21928): Gtk-CRITICAL **: 09:51:34.519: gtk_menu_detach: assertion 'GTK_IS_MENU (menu)' failed 相关参考：在Deepin/UOS里Remmina不能直接升级到最新版的解决。
错误示例二 [22:26:14:830] [2958:2959] [INFO][com.freerdp.client.common.cmdline] - loading channelEx rdpdr [22:26:14:830] [2958:2959] [INFO][com.freerdp.client.common.cmdline] - loading channelEx rdpsnd [22:26:14:830] [2958:2959] [INFO][com.freerdp.client.common.cmdline] - loading channelEx cliprdr [22:26:14:830] [2958:2959] [INFO][com.freerdp.client.common.cmdline] - loading channelEx drdynvc Cannot open libmwv206dec.so, libmwv206dec.so: 无法打开共享对象文件: 没有那个文件或目录 [22:26:14:898] [2958:2959] [ERROR][com.winpr.timezone] - Unable to find a match for unix timezone: Asia/Xian [22:26:14:947] [2958:2959] [INFO][com.freerdp.gdi] - Local framebuffer format PIXEL_FORMAT_BGRX32 [22:26:14:947] [2958:2959] [INFO][com.freerdp.gdi] - Remote framebuffer format PIXEL_FORMAT_BGRA32 [22:26:14:956] [2958:2959] [INFO][com.winpr.clipboard] - initialized POSIX local file subsystem [22:26:14:962] [2958:2959] [INFO][com.freerdp.channels.drdynvc.client] - Loading Dynamic Virtual Channel audin [22:26:14:962] [2958:2959] [INFO][com.freerdp.channels.audin.client] - Loaded alsa backend for audin [22:26:14:962] [2958:2959] [INFO][com.freerdp.channels.drdynvc.client] - Loading Dynamic Virtual Channel urbdrc [22:26:14:962] [2958:2959] [ERROR][com.freerdp.channels.urbdrc.client] - error processing arguments [22:26:14:965] [2958:2959] [WARN][com.freerdp.channels.urbdrc.client] - bus:0 dev:0 not exist in udevman [22:26:14:965] [2958:2959] [INFO][com.freerdp.channels.urbdrc.client] - VID: 0x04CA, PID: 0x7058 [22:26:14:965] [2958:2959] [ERROR][com.freerdp.channels.urbdrc.client] - libusb_open: (by id) error: 0xFFFFFFFD (-3) [22:26:14:965] [2958:2959] [INFO][com.freerdp.channels.drdynvc.client] - Loading Dynamic Virtual Channel rdpgfx [22:26:14:965] [2958:2959] [INFO][com.freerdp.channels.drdynvc.client] - Loading Dynamic Virtual Channel geometry [22:26:14:965] [2958:2964] [INFO][com.freerdp.channels.rdpdr.client] - Loading device service drive [SYNC] (static) [22:26:14:965] [2958:2964] [INFO][com.freerdp.channels.rdpdr.client] - Loading device service drive [home] (static) [22:26:14:965] [2958:2959] [INFO][com.freerdp.channels.drdynvc.client] - Loading Dynamic Virtual Channel video [22:26:14:966] [2958:2965] [INFO][com.freerdp.channels.rdpsnd.client] - Loaded pulse backend for rdpsnd [22:26:15:841] [2958:2964] [INFO][com.freerdp.channels.rdpdr.client] - registered device #1: SYNC (type=8 id=1) [22:26:15:841] [2958:2964] [INFO][com.freerdp.channels.rdpdr.client] - registered device #2: home (type=8 id=2) Cannot open libmwv206dec.so, libmwv206dec.so: 无法打开共享对象文件: 没有那个文件或目录
错误示例三 VLC media player 3.0.11 Vetinari (revision 3.0.11-0-gdc0c5ced72) [00000000005bf580] main libvlc: 正在以默认界面运行 vlc。使用“cvlc”可以无界面模式使用 vlc。 Cannot open libmwv206dec.so, libmwv206dec.so: 无法打开共享对象文件: 没有那个文件或目录 libva info: VA-API version 1.4.0 libva info: va_getDriverName() returns 0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/radeonsi_drv_video.so libva info: Found init function __vaDriverInit_1_4 mesa: for the -simplifycfg-sink-common option: may only occur zero or one times! mesa: for the -global-isel-abort option: may only occur zero or one times! libva info: va_openDriver() returns 0 [00007ff4ec002dd0] glconv_vaapi_x11 gl error: vaDeriveImage: operation failed [00007ff4f0050e00] main video output error: video output creation failed [00007ff50520b0c0] main decoder error: failed to create video output mesa: for the -simplifycfg-sink-common option: may only occur zero or one times! mesa: for the -global-isel-abort option: may only occur zero or one times! [00007ff50520b0c0] avcodec decoder: Using G3DVL VDPAU Driver Shared Library version 1.0 for hardware decoding
处理意见 不用管它也没事，那就不需要做其它的处理。
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