runtime-error

I have a major problem during loading the extension into the program. I get an exception as there is no valid constructor. The problem is in the line: ekstensja = (ArrayList<Dydaktyk>) ois.readObject(); I get something like that: java.io.InvalidClassException: Dydaktyk; no valid constructor at java.io.ObjectStreamClass$ExceptionInfo.newInvalidClassException(Unknown Source) at java.io.ObjectStreamClass.checkDeserialize(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject

Please help, it's my studying project. It work locally but not online: Hello, it is said that i dont need special gems like "therubyracer" in rails 3.1.0 but it writes in "heroku logs": 2011-10-04T23:15:30+00:00 app[web.1]: ActionView::Template::Error (Could not fin d a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. 2011-10-04T23:15:30+00:00 app[web.1]: (in /app/app/assets/javascripts/rails.js )):.... i was trying to install "therubyracer" but i have error with installing it C:\proj\lagp>gem install therubyracer Temporarily enhancing PATH to

I have a very weird problem with Spring Boot, I don't know why the web application which using Spring Boot cannot start and it has no output error even when I run it directly on the terminal. java -jar /var/lib/tomcat/webapps/rasdaman.war log4j:WARN No appenders could be found for logger (org.springframework.web.context.support.StandardServletEnvironment). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. . ____ _ __ _ _ /\ / ' __ _ () __ __ _ \ \ \ ( ( )__ | '_ | '| | ' / ` | \ \ \ \/ )| |)| | | | | || (

I need help with this macro. Every time I run it, I get the error below. I thought it was a simple macro that I could have anybody on my team use to make it take a less time than they were taking to manually create this PivotTable every time they ran the report. However, it's not working. Please see error below and advise. I emboldened and italicized the error. Sub LEDOTTR() ' ' LEDOTTR Macro ' ' Range("A87").Select Range(Selection, ActiveCell.SpecialCells(xlLastCell)).Select ***ActiveWorkbook.PivotCaches.Create(SourceType:=xlDatabase, SourceData:= _ "Sheet1!R87C1:R8214C25", Version:

While trying to answer a applet question , the OP didn't know how to view error messages for his applet. It's been a while since I did this myself and I didn't find any step-by-step instructions for doing it, so I am posting a question and answer here for future generations. Windows: Double-click on the Java icon in the System tray next to the clock in the lower right corner. This will open the Java Control Panel. Click on the Advanced tab. Click on the + next to "Java Console" then click on "Show the Console". The Java Console will display any stacktraces showing error messages from thrown

Could someone help me understand what PEP479 is about? I was reading the doc and couldn't get my head around it. The abstract says: This PEP proposes a change to generators: when StopIteration is raised inside a generator, it is replaced it with RuntimeError. (More precisely, this happens when the exception is about to bubble out of the generator's stack frame.) So for example, does a loop like so still work? it = iter([1,2,3]) try: i = next(it) while True: i = next(it) except StopIteration: pass Or does it mean that if I have a generator definition like so: def gen(): yield from range(5)

I've got a bit of code where when I press a button it calls a sub which will add a new sheet to a workbook and then change the codename of the sheet to make it easier to refer to later on in my code. This is as follows: Dim wbk As Workbook Dim wks As Worksheet Set wbk = ThisWorkbook wbk.Sheets.Add.Name = "Admin - Save Log" Set wks = wbk.Worksheets("Admin - Save Log") wks.Parent.VBProject.VBComponents(wks.CodeName).Name = "wksAdminSaveLog" This does seem to work - HOWEVER - only when I have the "Developer" window open or have previously had it open. If I click the button when I first open the