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问题 Goal: I'm trying to loop a video infinitely on a React gatsby site. I have a mp4 file locally under assets, but it doesn't show up on my screen. What I've tried: I thought it might be a CSS issue so I set it and it's clearly width and height 100% of the window but video is still not showing up. JS: import React from "react" import "./index.css" export default () => ( <div> <video id="background-video" loop autoPlay> <source src="..\assets\video\Cenote_Squad_Cinemagraph_1500x840_Final.mp4"

问题 i using claim in login . but it show me this error A claim of type http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier was not present on the provided ClaimsIdentity. how solve this ? public class MvcApplication : System.Web.HttpApplication { protected void Application_Start() { AreaRegistration.RegisterAllAreas(); FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters); RouteConfig.RegisterRoutes(RouteTable.Routes); BundleConfig.RegisterBundles(BundleTable.Bundles); /

问题 i using claim in login . but it show me this error A claim of type http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier was not present on the provided ClaimsIdentity. how solve this ? public class MvcApplication : System.Web.HttpApplication { protected void Application_Start() { AreaRegistration.RegisterAllAreas(); FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters); RouteConfig.RegisterRoutes(RouteTable.Routes); BundleConfig.RegisterBundles(BundleTable.Bundles); /

问题 Goal: I'm trying to loop a video infinitely on a React gatsby site. I have a mp4 file locally under assets, but it doesn't show up on my screen. What I've tried: I thought it might be a CSS issue so I set it and it's clearly width and height 100% of the window but video is still not showing up. JS: import React from "react" import "./index.css" export default () => ( <div> <video id="background-video" loop autoPlay> <source src="..\assets\video\Cenote_Squad_Cinemagraph_1500x840_Final.mp4"

问题 i using claim in login . but it show me this error A claim of type http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier was not present on the provided ClaimsIdentity. how solve this ? public class MvcApplication : System.Web.HttpApplication { protected void Application_Start() { AreaRegistration.RegisterAllAreas(); FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters); RouteConfig.RegisterRoutes(RouteTable.Routes); BundleConfig.RegisterBundles(BundleTable.Bundles); /

问题 I wish to use one of my local sound files to provide background music, but I get this error message: Caused by: java.lang.UnsatisfiedLinkError: Can't load library: C:\Program Files\Amazon Corretto\jdk1.8.0_232\jre\bin\glib-lite.dll But my code is as follow: public class DungeonGUI extends Application { private Dungeon dungeon; private Stage stage; private GridPane root; private Button attack; private Button heal; // private Button checkInventory; private Button save; private Text

问题 i using claim in login . but it show me this error A claim of type http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier was not present on the provided ClaimsIdentity. how solve this ? public class MvcApplication : System.Web.HttpApplication { protected void Application_Start() { AreaRegistration.RegisterAllAreas(); FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters); RouteConfig.RegisterRoutes(RouteTable.Routes); BundleConfig.RegisterBundles(BundleTable.Bundles); /

问题 This question already has answers here : Javascript 2d array indexOf (10 answers) Closed 5 years ago . I have the following code: alert( [[0,1],[1,0]].indexOf([0,1]) ); And even though the array [0,1] is an element of the two-dimensional array, I get a value of '-1' returned. What have I done wrong in life? 回答1: It doesn't find your element because [0, 1] and [0, 1] are not equal in the same way that 4 and 4 are. console.log(4 === 4); // true console.log([0, 1] === [0, 1]); // false When you

问题 EF Core supports a lot of different providers and I can configure them in Startup.cs by specifying the provider. For example, if I want to use SQL Server, I can use: services.AddDbContext<SomeContext>(options => { options.UseSqlServer(Configuration.GetConnectionString("SomeDatabase")); }); But the DB provider (SQL Server) seems to be hard-coded here. What I want to achieve is set the DB provider based on configuration so I can switch the DB provider based on configuration. Is there a way to

问题 I'm using ffmpeg to scale my WEBM file, by using below command: ffmpeg -i in.webm -c:v libvpx -vf scale=100:100 out.webm The output has correct resolution as I expected but the problem is transparency become black background. Could someone give me a solution for this. Thank you so much. Below is the log of the operation: ffmpeg version 3.4 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 7.2.0 (GCC) configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib -