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问题 I have an express API running and when I make a request I get this message. Error: Access to XMLHttpRequest at 'http://localhost:9000/api/courses' from origin 'http://localhost:4222' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. I am using cors in my API here is my code: import * as express from 'express'; import {Application} from "express"; import {getAllCourses, getCourseById} from "./get-courses.route"; import {searchLessons

问题 I was trying to answer this question, but I did not because I don't understand Streams well enough. Please tell me if my explanation is correct or not. My answer : import java.util.Arrays; import java.util.stream.Stream; public class Temp { public static void main(String [] args){ String [] input = {"1,2", "3,4", "5"}; String [] expected = {"1", "2", "3", "4", "5"}; String [] actual = Stream.of(input) .flatMap(s -> Arrays.stream(s.split(","))) .toArray(String [] :: new); //Testing - Runs only

问题 I'm getting the following errors when I try to build my c++ program in Xcode: Undefined symbols for architecture x86_64: "DoublyLinkedList::insertFront(int*)", referenced from: _main in main.o "DoublyLinkedList::print()", referenced from: _main in main.o "DoublyLinkedList::DoublyLinkedList()", referenced from: _main in main.o "DoublyLinkedList::~DoublyLinkedList()", referenced from: _main in main.o ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit

问题 I am stuck with the installation of TPC-E EGen on Mac OS X (or Linux). I have downloaded the workload generator from TPC website : www.tpc.org/tpce/egen-download-request.asp but I failed to build it. When using the following command for building the utilities: cd Utilities/prj/GNUMake/ make I receive the following error: ../../prj/GNUMake/Makefile.EGenUtilities:136: ../../obj/DateTime.d: No such file or directory ../../prj/GNUMake/Makefile.EGenUtilities:136: ../../obj/EGenVersion.d: No such

问题 Closed. This question needs debugging details. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . Improve this question I am trying to rotate camera with look-controls.Camera is rotating fine without look-controls.Can somebody tell me how can i rotate camera with look-controls? 回答1: You'll need to remove or disable look-controls if you're overriding camera rotation manually. You can remove the

问题 I installed Codeigniter 4.0.0.rc3 on my local computer using Wampserver and created a 'people' controller. I can access the page using this address: http://127.0.0.1/election/index.php/people But not without 'index.php': http://127.0.0.1/election/people And this is the error: The requested URL /Projects/Web/election/public/index.php/people was not found on this server. .htaccess is in the public directory and is working because the error shows index.php in the path. This is my htaccess: #

问题 I have a PCL library I want to distribute as NuGet package. Screenshot of the PCL application library properties page: csproj file: <TargetFrameworkVersion>v4.5</TargetFrameworkVersion> <TargetFrameworkProfile>Profile111</TargetFrameworkProfile> <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids> Steps to reproduce my problem: Clone both repos from: NuGet package Console application + PCL library Build the NugetPackage project +

问题 I want make Media Player with C#&VS2019 Windows Version 10 SQLite Version 3 Build Environment 32bit I make Library Project and Console Project(Test) But I got this runtime error. Error System.Data.SQLite.SQLiteException 'SQL logic error near "'2021-10-30'": syntax error' DirectoryFileManager using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.IO; using System.Data.SQLite; namespace Eagle_Lib { public class

问题 I have a PCL library I want to distribute as NuGet package. Screenshot of the PCL application library properties page: csproj file: <TargetFrameworkVersion>v4.5</TargetFrameworkVersion> <TargetFrameworkProfile>Profile111</TargetFrameworkProfile> <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids> Steps to reproduce my problem: Clone both repos from: NuGet package Console application + PCL library Build the NugetPackage project +

问题 I have been trying to connect mysql database to ms Access but no result.I don't think personally I am using the DAo.Connection and the workspace properly. I keep on getting the 3001 connection error when I set mySqlCon . I guess my arguments are not properly set but I was following an example from here. Function connectingMySql() Dim mySqlCon As Dao.Connection Dim wrkODBC As Workspace Set wrkODBC = CreateWorkspace("newODBCWorkspace", "admin", "", dbUseODBC) Set mySqlCon = wrkODBC