运行到小程序 模拟器微信开发者工具报错

用Hbuilderx（2.6.16）新建的hello-uni-app模板，直接点击运行——运行到小程序模拟器——微信开发者工具，编译报错信息如下：

d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\neo-async\async.js:14  
 throw new Error('Callback was already called.');  
 ^  
     Error: Callback was already called.  
     at throwError (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\neo-async\async.js:14:11)  
     at d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\neo-async\async.js:2813:7  
     at _combinedTickCallback (internal/process/next_tick.js:131:7)  
     at process._tickCallback (internal/process/next_tick.js:180:9)

卸载了uniapp的编译插件，重新安装，删除了hello-uni-app模板，从官网里的github地址下载hello-uniapp项目，重新运行，又报另外一个错：

ERROR  Error: No module factory available for dependency type: CssDependency  
15:21:23.814 Error: No module factory available for dependency type: CssDependency  
15:21:23.821     at addDependency (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compilation.js:694:12)  
15:21:23.822     at iterationOfArrayCallback (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compilation.js:194:3)  
15:21:23.829     at addDependenciesBlock (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compilation.js:712:5)  
15:21:23.830     at Compilation.processModuleDependencies (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compilation.js:723:4)  
15:21:23.833     at afterBuild (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compilation.js:855:15)  
15:21:23.836     at buildModule.err (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compilation.js:899:11)  
15:21:23.836     at callback (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compilation.js:628:5)  
15:21:23.840     at module.build.error (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\Compilation.js:676:12)  
15:21:23.841     at handleParseResult (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\NormalModule.js:456:12)  
15:21:23.841     at doBuild.err (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\NormalModule.js:478:6)  
15:21:23.841     at runLoaders (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\webpack\lib\NormalModule.js:342:12)  
15:21:23.841     at d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\loader-runner\lib\LoaderRunner.js:373:3  
15:21:23.841     at iterateNormalLoaders (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\loader-runner\lib\LoaderRunner.js:214:10)  
15:21:23.841     at d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\loader-runner\lib\LoaderRunner.js:186:6  
15:21:23.856     at context.callback (d:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\loader-runner\lib\LoaderRunner.js:111:13)  
15:21:23.856     at childCompiler.runAsChild (D:\Documents\Downloads\HBuilderX\plugins\uniapp-cli\node_modules\mini-css-extract-plugin\dist\loader.js:199:12)

小程序运行配置已配置