Problems updating apps placed on SD card on Andriod phones

I have had problems updating my apps on Andoid that are stored on the SD Card. Google Play informs me with the following:

Installation error... Couldn't install on USB storage or SD card

A tip from the following page helped me getting updates installed correctly:

1. Mount the Andriod phone as a hard disk on a computer
2. Navigate to the /sdcard/.andriod_secure folder (on SD card)
3. Delete the file "smdl2temp1.asec file

Disclaimer

I have no clue of what the file is used for and if this can damage the Andriod installation on your phone. However it solved me problems (and other according to forums on the Internet) with installing updates to apps moved to the SD card.

Links

• http://poojan206.wordpress.com/tag/smdl2tmp1-asec/ 
• http://www.strivingprogrammers.com/blog.aspx?tag=smdl2tmp1.asec 
• http://www.fileinfo.com/extension/asec