java exception has occurred

An unhandled exception occurred while adding the RequiredFieldValidator verification control to the NIU news publishing system. fieldvalidator I thought this was the only problem I would have encountered. After I had a chat with my classmates, I knew that everyone had this problem. The main reason was the lack of files in the root directory. You can add it! Problem: Solution: Find the file in the following

This error was prompted when I rename the package in the android project today (not during the previous rename, depressing ): An unexpected exception occurred while creating a change object. See the error log for more details Shows the effect: After that, Google searched Baidu and finally found a post on stackoverflow: Http://stackoverflow.com/questions/6465127/rename-android-package-name-fails/15771

An exception occurred to the external component mentioned in the previous "questions about generating Word search and replacement" blog. It was finally handled by the senior engineer. It turned out to be MSWord. olb is not registered, which is usually an accident when installing the office. Use regtlib.exe "C: \ Program Files \ Microsoft Office \ office12 \ msword.olb(or regtlib.exe" C: \ Program Files \ M

Write the management script of the background process, when using service Deamon-name stop, the following prompt appears:/sbin/service:line 66:23299 Terminated env-i lang= "$LANG" path= "$PATH" term= "$TERM" "${servicedir}/${serv ICE} "${options}The reasons are:I set the name of the management script to be the same as the background process name, i.e.:Background process name: Deamon-name,Script Name:/etc/init.d/deamon-nameThere is a sentence in the script:Killall Deamon-nameExecute service deamo

Nothing has happened recently. I wrote a software program that facilitates browser proxy switching. However, during the final test phase, I found that the unauthorizedaccessexception exception occurred while trying to write the settings to the Registry, the system prompts "cannot write to the Registry ". Think twice about it. Later, view the registerkey related items one by one. CodeIt is found that the se

Problem description: I used the request approval action in nintex. An error occurred after the workflow was started. After searching the log, I found the following information: 10/13/2011 pm Error System Account Exception has been thrown by the target of an invocation. Error

View Details: datetime2 cannot insert datetime (approximate meaning)As a result, look under, my class does not have a datetime2, breakpoint down, found that the modification time is empty, the result compilation run is automatically assigned to the default value of 0000-00-00 00:00:00,Database fields are also datetime,So, the field type that is directly inside the class is allowed to be empty, for example: public DateTime? Crearedate{get;set;} Price question mark, allowed to be empty,In this cas

Scene:Client initialization is normal, and the IIS service is reported as 80040154.System.Web.Services.Protocols.SoapException:System.Web.Services.Protocols.SoapException: The server was unable to process the request. ---> System.Runtime.InteropServices.COMException: Retrieving components of the CLSID {ad270ef3-e9ef-4928-ba2a-53205b9b5211} in a COM class factory failed, The cause is the following error: 80040154 There are no registered classes (exceptions are from hresult:0x80040154 (Regdb_e_cla

Exception information: caused by:org.hibernate.PersistentObjectException:detached entity passed to Persist:com.xxx.XxxSimply put, this exception occurs when a free object is to be persisted (save), whose ID is both the ORM framework generates an ID value for it, and the ID of this entity already has a value.The solution is many, the author is to do a property editor for its entity, in the editor to determin

code example is as follows:....//Call place System.Threading.Thread Thread = new System.Threading.Thread (New System.threadi Ng.Parameterizedthreadstart (Threadmethod)); Thread.Start (value); Thread. Join ();//wait for the end//....thread function private void Threadmethod (object parameter) {//This is the code that is written for XPS processing}Summary: The concept of STA, MTA needs to be familiar, other threads, thread synchronization, threads pool and other concepts need to be consolidated a

://code.google.com/p/android/issues/detail?id=77846 Well, Google is sometimes really disappointing. Fortunately, I think of a way to solve the problem.is in the refresh, that is clear at the same time, let Recyclerview temporarily not be able to slide, and then allow sliding. The code is when the Recyclerview is initialized and whether it is refreshed to intercept the gesture: 123456789101112 mRecyclerView.setOnTouchListener(new View.OnTouchListener() {@Overridepublic boole

Importloggingimportosimporttimedeflogger (USER_NAME): "Log function module" logger=logging.getlogger (USER_NAME) logger.setlevel (Logging. DEBUG) log_file= '/TMP/TJ ' Now_minute=time.strftime ("%y%m%d%h%m", Time.localtime ()) Ago_minute=int (today) -1fn=logging. Filehandler (log_file+ ' _ ' +user_name+ ' _ ' +today+ '. log ') fn.setlevel (logging. DEBUG) formatter=logging. Formatter ('% (asctime) s% (filename) s[line:% (Lineno) d]% (levelname) s% (message) s ') fn.setformatter (Formatter) logge

This problem occurs today when using the latest version of Springboot, and the exception thrown is: UnsupportedclassversionerrorOpen the source of the exception to see a bitclass * in the file is not supported.Obviously, because it is to read a version of the unsupported class file caused, and then I looked at Springboot Jetty is what version, found that this is the latest version of the jetty is estimated

1. Timeout: for example, the order service calls the product-service interface of the commodity service for order-service: This interface requires a certain amount of response time. This exception occurs when you call it. Solution: In the order-service configuration file application. yml, set the timeout time: Timeout Configuration:The default optons readtimeout value is 60, but because hystrix times out in 1 second by default, response timeout in 1

The computer suddenly power off, myeclipse off abnormally, "package Explorer" abnormal display, error "Could not create the View:an unexpected exception is thrown." However, the files in the project can be viewed by command.How to resolve:Close MyEclipse--Delete Files". metadata/.plugins/org.eclipse.core.runtime/.settings/Com.genuitec.eclipse.ast.deploy.core.prefs "--Restart MyEclipseReprinted from: Http://wenku.baidu.com/link?url=E3NAsKmoPtibGPiSPa_

sql2008 start Error: An unhandled exception occurred in the component of the application and the value cannot be null ViewInfo (resolved!). ）1. Restart SQL (invalid)2, restart the system (invalid)3. Re-installed. NET (invalid)After the problem is found in this is because the temporary processing path caused by an exception, mainly C:\Users\Administrator\AppData\L

With a many-to-one association, if one of the end of the deletion, many of this side can not be aware, although the database may be configured by the foreign key to the end of a lot of empty, but in hibernate I do not know how to deal with the moment.Current mode of Use:1, first of all, the database needs to configure the foreign key, to ensure that the data in the database is correct.2. Add a property to Hibernate's Many-to-one element: not-found= "Ignore".If there is a more appropriate way, al

The spring version is not the same as the way labels are used slightlyThis time, in order to add ANDROIDPN to the server, a different version of the integrationSpring configuration changes, bugs will appear, integration is not smoothThis time, let's talk about Mina. Configuration issues in Spring =============================================================== - MINA - =============================================================== - Beanclass= "Org.springframework.beans.factory.confi

An exception occurred when using Navicat for MySQL. "You have an error in your SQL syntax ...... "solved [Err] 1064-You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'syntax # first, make sure that the SQL statement has no syntax error. It is generally caused by the encoding of the SQL file. You can try to switch the encodin

1. After SharePoint is installed, when you use the SharePoint Products Configuration Wizard configuration, the user name and information that you enter when you connect to SQL Server are in the middle (if the domain is test.com), remember that you can only enter test/ The administrator user name format.2, if there is such a problem, you can hit the SharePoint patch package, refer to the URL:http://support.microsoft.com/kb/953471An exception