File uploading does not work (cannot create project directory) / #4264

Error 20070226171400 WARNING: db/class_file.inc.php : 514 could not create target directory for uploaded file './_files/prj6/'
Error 20070226171400            pages/file.inc.php : 636 -> File::insert()
Error 20070226171400 std/class_pagehandler.inc.php : 719 -> fileEditSubmit()
Error 20070226171400                     index.php : 212 -> PageHandler::show("fileEditSubmit")
Error 20070226171400 
Error 20070226171400      Variables in insert():
Error 20070226171400               upload_filepath = ./_tmp/uploads/protokoll.txt
Error 20070226171400    v0.0796, fileEditSubmit, from 62.226.150.125,  uri:/index.php
Error 20070226171400 

Error 20070226230554 WARNING: db/class_file.inc.php : 513 mkdir() [<a href='function.mkdir'>function.mkdir</a>]: Unable to access ./_files/prj19/ (./_files/prj19)
Error 20070226230554            pages/file.inc.php : 636 -> File::insert()
Error 20070226230554 std/class_pagehandler.inc.php : 719 -> fileEditSubmit()
Error 20070226230554                     index.php : 212 -> PageHandler::show("fileEditSubmit")
Error 20070226230554 
Error 20070226230554      Variables in insert():
Error 20070226230554               upload_filepath = ./_tmp/uploads/1.txt
Error 20070226230554    v0.0796, fileEditSubmit, from 85.179.22.74,  uri:/index.php
Error 20070226230554 
Error 20070226230554 WARNING: db/class_file.inc.php : 514 could not create target directory for uploaded file './_files/prj19/'
Error 20070226230554            pages/file.inc.php : 636 -> File::insert()
Error 20070226230554 std/class_pagehandler.inc.php : 719 -> fileEditSubmit()
Error 20070226230554                     index.php : 212 -> PageHandler::show("fileEditSubmit")
Error 20070226230554 
Error 20070226230554      Variables in insert():
Error 20070226230554               upload_filepath = ./_tmp/uploads/1.txt
Error 20070226230554    v0.0796, fileEditSubmit, from 85.179.22.74,  uri:/index.php
Error 20070226230554