Application install Failed due to INSTALL_FAILED_CONTAINER_ERROR

Recently discovered a new error when installing my application on my G1 (with Froyo 2.2.2)

The eclipse error was:

Installation error: INSTALL_FAILED_CONTAINER_ERROR

than I solve it with this steps:

1. Open adb with shell, type:

adb shell

(I get # sing)
NOTE If you get $ sign type:

su

and you'll become a super user (# sign).
2. Remove the nasty (temp) file

rm /mnt/secure/asec/smdl2tmp1.asec

that's all.