Error message

  • Notice: Undefined variable: _SESSION in tracking_init() (line 27 of C:\xampp\htdocs\rsds\sites\all\modules\rsds\tracking\tracking.module).
  • Warning: file_get_contents(http://user-agent-string.info/rpc/get_data.php?key=free&format=ini&ver=y): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in UASparser->get_contents() (line 247 of C:\xampp\htdocs\rsds\sites\all\modules\rsds\tracking\UASparser\UASparser.php).
  • Warning: file_get_contents(http://user-agent-string.info/rpc/get_data.php?key=free&format=ini): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in UASparser->get_contents() (line 247 of C:\xampp\htdocs\rsds\sites\all\modules\rsds\tracking\UASparser\UASparser.php).

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Zbigniew W. Raś
University of North Carolina, Charlotte, USA

Zbigniew W. Raś was awarded his M. Sc. in Mathematics and his Ph.D. in Computer Science from the Warsaw University. He started his career as an Assistant Professor at the Warsaw University in 1974 and has also worked in the Computer Science Department at the Jagiellonian University (1976-78). His next affiliations include Research Associate Position at the Columbia University (New York), Assistant Professor Position at the University of Florida (Gainesville), and Associate Professor Position at the University of Tennessee (Knoxville). Since 1988 he is a Full Professor at the University of North Carolina (Charlotte). He was also holding various visiting positions in Sweden (the Linkoping University), Germany (the University of Bonn), Italy (IASI-CNR), Spain (the University of Palma de Mallorca), Poland (the Warsaw University of Technology), and Lockheed Reseach Laboratory at Palo Alto. He published more than 100 papers in journals, book chapters, and conference proceedings in the area of intelligent information systems. He authored one book and edited 35 books including special journal issues. He is the general chairman of ISMIS (International Symposium on Methodologies for Intelligent Systems) symposium. He is the Editor-in-Chief of the Journal of Intelligent Information Systems (Kluwer) and Deputy Editor-in-Chief of Fundamenta Informaticae Journal (IOS Press). He received a number of awards including Alcoa Foundation Outstanding Faculty Award (2000) and the COIT Graduate Faculty Excellence in Teaching Award (2003).

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\rsds\includes\common.inc:2748) in C:\xampp\htdocs\rsds\includes\bootstrap.inc on line 1232

Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\rsds\includes\common.inc:2748) in C:\xampp\htdocs\rsds\includes\bootstrap.inc on line 1236
Error | Rough Set Database System

Error

Error message

Recoverable fatal error: Object of class stdClass could not be converted to string in DatabaseStatementBase->execute() (line 2171 of C:\xampp\htdocs\rsds\includes\database\database.inc).
The website encountered an unexpected error. Please try again later.

Uncaught exception thrown in shutdown function.

PDOException: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'rsds_data.semaphore' doesn't exist: DELETE FROM {semaphore} WHERE (value = :db_condition_placeholder_0) ; Array ( [:db_condition_placeholder_0] => 104112492259ebee53548b19.40383656 ) in lock_release_all() (line 269 of C:\xampp\htdocs\rsds\includes\lock.inc).



Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42S02]: Base table or view not found: 1146 Table 'rsds_data.semaphore' doesn't exist' in C:\xampp\htdocs\rsds\includes\database\database.inc:2171 Stack trace: #0 C:\xampp\htdocs\rsds\includes\database\database.inc(2171): PDOStatement->execute(Array) #1 C:\xampp\htdocs\rsds\includes\database\database.inc(683): DatabaseStatementBase->execute(Array, Array) #2 C:\xampp\htdocs\rsds\includes\database\database.inc(2350): DatabaseConnection->query('SELECT expire, ...', Array, Array) #3 C:\xampp\htdocs\rsds\includes\lock.inc(167): db_query('SELECT expire, ...', Array) #4 C:\xampp\htdocs\rsds\includes\lock.inc(146): lock_may_be_available('theme_registry:...') #5 C:\xampp\htdocs\rsds\includes\theme.inc(449): lock_acquire('theme_registry:...') #6 C:\xampp\htdocs\rsds\includes\bootstrap.inc(455): ThemeRegistry->set(Array) #7 [internal function]: DrupalCacheArray->__destruct() #8 {main} thrown in C:\xampp\htdocs\rsds\includes\database\database.inc on line 2171