Operation not valid with the current stack size


I'm try to play with test-zcash by following this guide https://github.com/zcash/zcash/wiki/Public-Alpha-Guide
All is fine except sendrawtransaction method that return an error: {"code":-26,"message":"16: mandatory-script-verify-flag-failed (Operation not valid with the current stack size)"}

What I doing wrong?


You may find it easier to use the z_sendmany command described in the current Beta Guide: https://github.com/zcash/zcash/wiki/Beta-Guide