我创建了一个todo应用程序,但是当我在应用程序中显示虚拟数据时,它显示了这个错误。 Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.
You likely forgot to export your component from the file it's defined in, or you might have mixed up default
BUILD FAILED in 19s
error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081
FAILURE: Build failed with an exception.
* What w
我有一段代码:
const actions = $('.leaflet-draw-actions a:visible').length;
这会导致许多错误:
DOMException: Failed to execute 'querySelectorAll' on 'Document': '.leaflet-draw-actions a:visible' is not a valid selector.
at Function.Sizzle [as find] (...\node_modules\jquery\dist
我的HTML页面中有一个div: <div id="dynamicScript"></div> 我在一个文本框模糊操作上生成了一个动态JS代码: var dynamicScriptText = `$(document).on('click','#${id}',function(){alert();});`; 现在,我已经使用JS创建了一个脚本。但是如果脚本已经存在,我将首先删除它,然后使用动态id重新生成它,并将其附加到我的dynamicScript DIV中: var id = "Control
我安装了所有的绑定,并运行了以下步骤:
react-native init AwesomeProject
cd AwesomeProject
react-native run-ios
但是我得到了一个构建失败和下面的错误:
Error: xcodebuild process exited with code 65
at ChildProcess.<anonymous> (runIOS.js:102:14)
at emitTwo (events.js:87:13)
at ChildProcess.emit (events.js:172:7)
at ma