Installation Problem on Joomla 1.7

Hi,

Yesterday I installed JMobile on Joomla 1.6 without any problem.
Today I decided to upgrade to Joomla 1.7 and I tried to install JMobile again.
Unfortunately it won't install on 1.7.
I get the following messages:

JFolder::bestanden: Pad is geen map. Pad: /var/www/vhosts/goedkoopsteautorijbewijs.nl/httpdocs/havas/tmp/install_4e71a7d6c3441
JFolder::map: Pad is geen map. Pad: /var/www/vhosts/goedkoopsteautorijbewijs.nl/httpdocs/havas/tmp/install_4e71a7d6c3441
JFolder::bestanden: Pad is geen map. Pad: /var/www/vhosts/goedkoopsteautorijbewijs.nl/httpdocs/havas/tmp/install_4e71a7d6c3441
JInstaller::Installatie: Kan geen Joomla XML-setupbestand vinden

Is there anyone who can tell me what the problem is?

Sorry for the question.
Did a manual install and installation ran perfectly!

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