<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1422072099640_2783"><span id="yui_3_16_0_1_1422072099640_1922" class="lozengfy " role="button" tabindex="0" data-action="contact-card-menu" data-name="pw_forum@pwscf.org" data-address="pw_forum@pwscf.org" title="pw_forum@pwscf.org"><br></span><span style="" id="yui_3_16_0_1_1422072099640_1922" class="" role="button" tabindex="0" data-action="contact-card-menu" data-name="pw_forum@pwscf.org" data-address="pw_forum@pwscf.org" title="pw_forum@pwscf.org"></span></div><div dir="ltr" id="yui_3_16_0_1_1422072099640_2775">Hi ,i installed all the requirements for the quantum espresso through ubuntu software centre.Any time i open the software centre quantum espresso appears as one of the sofwares installed and the programs in it are run through the terminal.I am unable to uncompress the debian file containing the program and am unable to create a directory espresso.anytar (child): .: Cannot read: Is a directory<br style="" class="">tar (child): At beginning of tape, quitting now<br style="" class="">tar (child): Error is not recoverable: exiting now<br style="" class=""><br style="" class="">gzip: stdin: unexpected end of file<br style="" class="">tar: Child returned status 2<br style="" class="">tar: Error is not recoverable: exiting now<br style="" class=""> time i try to uncompress i get this error</div><div id="yui_3_16_0_1_1422072099640_2951" dir="ltr">kindly assist on what could be the problem<br></div><div id="yui_3_16_0_1_1422072099640_2950" dir="ltr"><br></div></div></body></html>