exception when YoutubeDL.execute(request)

[tangxianqiang]

com.sapher.youtubedl.YoutubeDLException: Error running exec(). Command: [youtube-dl, https://www.youtube.com/watch?v=rHudVncqapU] Working Directory: Environment: [ANDROID_ROOT=/system, EMULATED_STORAGE_SOURCE=/mnt/shell/emulated, LOOP_MOUNTPOINT=/mnt/obb, LD_PRELOAD=libsigchain.so:libNimsWrap.so, ANDROID_BOOTLOGO=1, EMULATED_STORAGE_TARGET=/storage/emulated, EXTERNAL_STORAGE=/storage/emulated/legacy, SYSTEMSERVERCLASSPATH=/system/framework/services.jar:/system/framework/ethernet-service.jar:/system/framework/wifi-service.jar:/system/framework/com.powermo.smartshowcore.jar, ANDROID_SOCKET_zygote=11, PATH=/oem/bin:/sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin, ANDROID_DATA=/data, ANDROID_ASSETS=/system/app, ASEC_MOUNTPOINT=/mnt/asec, BOOTCLASSPATH=/system/framework/core-libart.jar:/system/framework/conscrypt.jar:/system/framework/okhttp.jar:/system/framework/core-junit.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/telephony-common.jar:/system/framework/voip-common.jar:/system/framework/ims-common.jar:/system/framework/mms-common.jar:/system/framework/android.policy.jar:/system/framework/apache-xml.jar:/system/framework/qcmediaplayer.jar:/system/framework/vcard.jar:/system/framework/tcmiface.jar:/system/framework/qcom.fmradio.jar:/system/framework/WfdCommon.jar:/system/framework/oem-services.jar:/system/framework/vivo-framework.jar:/system/framework/vivo-media.jar:/system/framework/com.powermo.smartshow.jar, ANDROID_PROPERTY_WORKSPACE=9,0, ANDROID_STORAGE=/storage]