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1, the FPGA does not use the PIN must be set to a high impedance state setting the path as follows:Assignmen->device->devicepin option->unused pins->as inputs tri-stated. If the high resistance is not set, the circuit may cause weak current or other effects, for example: there may be a faint current led to glow through the LED. 2, PIN locking has a hint:Error:can ' t place multiple pins assigned to pin location pin_xxx (IOPAD_X34_Y18_N21)Workaround:Assignments->device in the Quartus-Device and P

Recently encountered a problem, using the incr count, stored in a number (int type), but because it is serialized after the memory, call the INCR method when the error: caused By:redis.clients.jedis.exceptions.JedisDataException:ERR value is not a integer or out of rangeAt Redis.clients.jedis.Protocol.processError (protocol.java:115)At Redis.clients.jedis.Protocol.process (protocol.java:133)At Redis.clients.jedis.Protocol.read (protocol.java:202)At Redis.clients.jedis.Connection.readProtocolWith

Select * From table_a A where a. id not in (select B. ID from table_ B B );First, unify the encoding of the two data tables. If the encoding of table_a is utf8_general_ci, modify the encoding of the table and execute the following statement:Alert table_a convert to Character Set utf8 collate utf8_unicode_ci; then execute the SELECT statement to solve the encoding conflict;[Err] 1267-illegal mix of collations (utf8_general_ci, implicit) and (utf8_unico

There is no such error in IE/FF, but the following error message appears in the command line under Chrome:Failed to load Resource:net::err_cache_missThis issue is a bug in the Chrome browser development tool that seems to be related to the cache and has been submitted to the chrome problem system without affecting normal use and can be ignored.Or, after opening the developer tools, use Refresh to force the refresh. Browser refreshes after reading to cache, everything is back to normal!!!!!!Chrom

Severity: Compilation errorOrg.eclipse.jdt.internal.compiler.classfmt.ClassFormatExceptionAt Org.eclipse.jdt.internal.compiler.classfmt.classfilereader.At Org.apache.jasper.compiler.jdtcompiler$1.findtype (jdtcompiler.java:232)At Org.apache.jasper.compiler.jdtcompiler$1.findtype (jdtcompiler.java:188)This problem may be caused by the inconsistency between Tomcat's JRE and the use of your project.and build PathAll three are kept version consistent and can be resolved.Compilation

line won't be executed");}//When a exception occurs, the control is transferred to the CATCH blockCatch(e) {document.write ("Description =" + E.description + "[br/]"); document.write ("Message =" + E.message + "[br/]"); document.write ("Stack =" + E.stack + "[br/][br/]");}finally{document.write (Guaranteed to execute);}Output:javascript Try Catch finally Example.pngThe formatting errors and exceptions in JavaScript need to be noted:try/catch/finally statement blocks can snap to exceptions, but

One: Problem description Today, when doing a full-database recovery, error: [root@ser6-52 mytest]# mongorestore-u superuser-p 123--authenticationdatabase admin/backup/mongodb/full_bak_201507 021651.bak/ Connected to:127.0.0.1 2015-07-02t17:45:45.297+0800 going into namespace [admin.system.version] Restoring to Admin.system.version without dropping.Restored data would be inserted without raising errors; Check your server log 1 objects found 2015-07-02t17:45:45.298+0800 Creating index: {key: {_i

characteristic is given.1: If the database is not using master-slave replication, then you can set the parameter log_bin_trust_function_creators to 1.mysql> set global Log_bin_trust_function_creators=1;This dynamic setting will expire after the service restarts, so we must also set it in My.cnf, plus log_bin_trust_function_creators=1, so it will be in effect forever.2: Explicitly indicate the type of function, and if we open the binary log, then we must specify a parameter for our function. Amo

Open My.ini Find[Mysqld]port=3306Basedir= "d:/phpstudy/mysql/"Datadir= "d:/phpstudy/mysql/data/"Character-set-server=utf8Default-storage-engine=innodb#支持 INNODB engine mode. Modify to Default-storage-engine=innodb.#如果 INNODB mode If unable to start, delete the log file restart in the data directory at the beginning of the IBFollow the above notes to modify the perfect solutionMySQL database error [ERR] 1286-unknown storage engine ' InnoDB '

' (' division_id '), CONSTRAINT ' fk_table1_division_1 ' FOREIGN KEY (' division_id ') REFERENCES ' db1 '. ' Table1 ' (' ID ') on DELETE CASCADE) engine=InnoDB; DROP TABLE IF EXISTS ' db1 '. ' Table1 '; HoweverifYou add a use ' db1 ' after the CREATE DATABASE statement the replication error would follow. That is, delete the table in the other schema. However, it has been tested to cause replication to break, either by executing the operation in another schema or by not specifying the database

Error message: [ERR] 1418-this function has none of deterministic, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable) Reason: This is when we start the bin-log, we have to specify our Whether the function is 1 deterministic indeterminate 2 No SQL SQL statement 3 READS SQL data just reads data 4 modifies SQL data to modify data 5 CONTAINS SQL contai

mysqld_safe--user=mysql szdb:~ # more/tmp/ Szdb.err 140907 13:40:33 mysqld_safe starting mysqld daemon with databases From/var/lib/mysql 140907 13:40:33 [err OR]/usr/sbin/mysqld:ambiguous option '--skip-opt ' (--skip-optimizer_prune_level) 140907 13:40:33 [ERROR] Aborting #出现错误提示为有歧义的参数, instance terminated 140907 13:40:33 Mysqld_safe Mysqld from PID File/var/lib/mysql/szdb.pid ended #修改my. cnf, remove skip-opt optionszdb:~ # VI/ETC/MY.CNFszd

Tags: for reason SQL Date FFFFFF Close parent error message dataToday in the MySQL, when a sudden appearance of this error message, it was forced, but after careful observation of the cause of the foreign key, this is due to delete the table when there is a foreign key association when there is a delete error, we can temporarily put the MYSQ database of FOREIGN KEY constraints to shut down, Please see below for specific methods:[ERR] 1451-cannot Delet

Tags: key nod size LTE str nbsp EFAULT code Error hintUse MySQL to insert data containing Chinese in usercase table, error [ERR] 1366-incorrect String value: ' \xe5\xb0\x8f\xe5\xb0\x8f ' for column ' name ' at row 1 The table statement and the inserted data statement are as follows CREATE TABLE usercase ( ID int primary key auto_increment, name varchar (ten), sex char (2) ); --Inserting a data insert into usercase (name, Sex) VALUES ("small", ' male

centos6.5, install xampp5.6.30, start MySQL error, can not produce. err file[Email protected]_server ~]#/opt/lampp/lampp startmysqlXampp:starting Mysql...ok.[[Email protected]_server ~]#/opt/lampp/bin/mysqld_safe_helper:can ' t create/write to file '/opt/lampp/var/mysql/ Zabbix_server.err ' (errcode:13 "Permission denied")Check directory Permissions[Email protected]_server ~]# ll/opt/lampp/var/mysql/Total 86056-RW-RW----1 MySQL mysql 16384 June 18:53

Now many sites often can not open, appear "error Net::err_connection_reset: Connection has been reset" and so on these issues, then these questions exactly what is the problem? The normal answer is: err_connection_ RESET explanation is: err-error connection-connection-reset-Repeat Google does not have a solution for this error so it will again prompt the user that the site contains an unknown error. The Web page may not be connected temporarily, or i

Severity: Compilation errorOrg.eclipse.jdt.internal.compiler.classfmt.ClassFormatExceptionAt Org.eclipse.jdt.internal.compiler.classfmt.classfilereader.At Org.apache.jasper.compiler.jdtcompiler$1.findtype (jdtcompiler.java:232)At Org.apache.jasper.compiler.jdtcompiler$1.findtype (jdtcompiler.java:188)This problem may be caused by the inconsistency between Tomcat's JRE and the use of your project.and build PathAll three are kept version consistent and can be resolved.Compilation

Incorrectly, you cannot select some values from the same table first, and then update the table (in the same statement). For example, the following SQL:Delete from the TBL where ID in(Select Max (ID) from TBL a where EXISTS(Select 1 from the TBL B where A.tac=b.tac GROUP by TAC has count (1) >1)Group BY TAC)Rewrite it to the following line:Delete from the TBL where ID in(Select a.ID from(Select MAX (ID) ID from tbl a where EXISTS(Select 1 from the TBL B where A.tac=b.tac GROUP by TAC has count (

Tags: def base log file nod support engine MYSQ SQ L databaseOpen My.ini Find[Mysqld]port=3306Basedir= "D:\MySQL Server 5.5"Datadir= "C:/programdata/mysql/mysql Server 5.5/data/"Character-set-server=utf8Default-storage-engine=innodb#支持 INNODB engine mode. Modify to Default-storage-engine=innodb.#如果 INNODB mode If unable to start, delete the log file restart in the data directory at the beginning of the IBFollow the above notes to modify the perfect solutionMySQL database error [

When you use the File_get_contents method to obtain a remote file, you receive[Function.file-get-contents]: Failed to open stream:http request failed!ErrorThe workaround is to modify the Allow_url_fopen = on in php.ini to solve some people's problems,The perfect solution also modifies the user_agent= "PHP" To change the parameters to mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)User_agent = "mozilla/4.