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Why am I not able to execute an application created by Qt? Also, I am not able to give execute permissions to it.

When i click "allow executing file as program", it automatically unchecks. enter image description here

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navigate to the directory containing the file in a terminal and issue a ls -al on the file and paste that output here, i suspect its due to ownership permissions. – lazyPower Jan 27 '11 at 17:01
up vote 2 down vote accepted

The problem is that you are developing on a non-native filesystem which does not understand Unix permissions. Apparently, that filesystem is configured to accept only specific permissions for files, thus does not allow to execute programs.

Simply copy the files on an ext3 or ext4 filesystem, such as at your home directory.

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