请教一个问题

我想用Tasker自动复制目录，从内置卡复制到外置卡，可是总是报错，麻烦各位大神帮我看看是为啥？我哪里做的不对吗？
报错日志如下，谢谢大家！
==========================
12.56.44/FileUtil nrda: need request:/storage/sdcard0/Pictures/Prisma: false
12.56.44/E checkSDPath: /storage/sdcard0/Pictures/Prisma
12.56.44/E 复制目录: checkSDPath:/storage/sdcard0/Pictures/Prisma useDocFile: false
12.56.44/Shell runSync test -e '/storage/sdcard0/Pictures/Prisma' root: truetimeout: 3000
12.56.44/Shell have process
12.56.44/Shell write cmd: test -e '/storage/sdcard0/Pictures/Prisma'
12.56.44/Shell start process timeout timer 3000ms for: test -e '/storage/sdcard0/Pictures/Prisma'
12.56.44/Shell start process-thread ID 709
12.56.44/Shell joined with 709
12.56.44/Shell exit result: 0
12.56.44/Shell non-null timeout
12.56.44/Shell runSync test -f '/storage/sdcard0/Pictures/Prisma' root: truetimeout: 3000
12.56.44/Shell have process
12.56.44/Shell write cmd: test -f '/storage/sdcard0/Pictures/Prisma'
12.56.44/Shell start process timeout timer 3000ms for: test -f'/storage/sdcard0/Pictures/Prisma'
12.56.44/Shell start process-thread ID 711
12.56.45/Shell joined with 711
12.56.45/Shell exit result: 1
12.56.45/Shell non-null timeout
12.56.45/Shell runSync test -d '/storage/sdcard0/Pictures/Prisma' root: truetimeout: 3000
12.56.45/Shell have process
12.56.45/Shell write cmd: test -d '/storage/sdcard0/Pictures/Prisma'
12.56.45/Shell start process timeout timer 3000ms for: test -d'/storage/sdcard0/Pictures/Prisma'
12.56.45/Shell start process-thread ID 713
12.56.45/Shell joined with 713
12.56.45/Shell exit result: 0
12.56.45/Shell non-null timeout
12.56.45/E 复制目录: checkSDPath:/storage/sdcard0/Pictures/Prisma ok true
12.56.45/FileUtil nrda: need request: /storage/extSdCard/Sync/Documents: false
12.56.45/E checkSDPath: /storage/sdcard0/Pictures/Prisma
12.56.45/E 复制目录: checkSDPath:/storage/sdcard0/Pictures/Prisma useDocFile: false
12.56.45/Shell runSync test -e '/storage/sdcard0/Pictures/Prisma' root: truetimeout: 3000
12.56.45/Shell have process
12.56.45/Shell write cmd: test -e '/storage/sdcard0/Pictures/Prisma'
12.56.45/Shell start process timeout timer 3000ms for: test -e'/storage/sdcard0/Pictures/Prisma'
12.56.45/Shell start process-thread ID 715
12.56.46/Shell joined with 715
12.56.46/Shell exit result: 0
12.56.46/Shell non-null timeout
12.56.46/Shell runSync test -f '/storage/sdcard0/Pictures/Prisma' root: truetimeout: 3000
12.56.46/Shell have process
12.56.46/Shell write cmd: test -f '/storage/sdcard0/Pictures/Prisma'
12.56.46/Shell start process timeout timer 3000ms for: test -f'/storage/sdcard0/Pictures/Prisma'
12.56.46/Shell start process-thread ID 717
12.56.46/Shell joined with 717
12.56.46/Shell exit result: 1
12.56.46/Shell non-null timeout
12.56.46/Shell runSync test -d '/storage/sdcard0/Pictures/Prisma' root: truetimeout: 3000
12.56.46/Shell have process
12.56.46/Shell write cmd: test -d '/storage/sdcard0/Pictures/Prisma'
12.56.46/Shell start process timeout timer 3000ms for: test -d'/storage/sdcard0/Pictures/Prisma'
12.56.46/Shell start process-thread ID 719
12.56.47/Shell joined with 719
12.56.47/Shell exit result: 0
12.56.47/Shell non-null timeout
12.56.47/E 复制目录: checkSDPath:/storage/sdcard0/Pictures/Prisma ok true
12.56.47/Shell runSync cp -r '/storage/sdcard0/Pictures/Prisma''/storage/extSdCard/Sync/Documents' root: true timeout: 60000
12.56.47/Shell have process
12.56.47/Shell write cmd: cp -r '/storage/sdcard0/Pictures/Prisma''/storage/extSdCard/Sync/Documents'
12.56.47/Shell start process timeout timer 60000ms for: cp -r'/storage/sdcard0/Pictures/Prisma' '/storage/extSdCard/Sync/Documents'
12.56.47/Shell start process-thread ID 721
12.56.47/Shell joined with 721
12.56.47/Shell exit result: 127
12.56.47/Shell non-null timeout
12.56.47/E result: stop task (error)
12.56.47/E 错误: 1
12.56.47/MacroEdit action finished exeID 1 action no 0 code 405 status: Errnext 0