调试信息报错
正在建立手机连接…
正在同步手机端程序文件…
mkdir failed for /storage/emulated/legacy/Android/data/io.dcloud.HBuilder/apps/HBuilder/www/, Device or resource busy
同步失败，失败原因：failed to copy ‘/Applications/HBuilder.app/Contents/configuration/org.eclipse.osgi/bundles/78/data/run_tmp/./css/mui.min.css’ to ‘/storage/emulated/legacy/Android/data/io.dcloud.HBuilder/apps/HBuilder/www/css/mui.min.css’: Device or resource busy 
正在建立手机连接…
正在同步手机端程序文件…
rm failed for /storage/emulated/legacy/Android/data/io.dcloud.HBuilder/apps/HBuilder/www/, Device or resource busy
mkdir failed for /storage/emulated/legacy/Android/data/io.dcloud.HBuilder/apps/HBuilder/www/, Device or resource busy
同步失败，失败原因：failed to copy ‘/Applications/HBuilder.app/Contents/configuration/org.eclipse.osgi/bundles/78/data/run_tmp/./css/mui.min.css’ to ‘/storage/emulated/legacy/Android/data/io.dcloud.HBuilder/apps/HBuilder/www/css/mui.min.css’: Device or resource busy 
模拟器上apk在运行 ，可能在后台运行杀掉即可 