I can not run any program.
As per the instruction I went to vscode dev.
Open up my repository to run a test program.
However, unfortunately, I can not run any of my programs.
I have checked the doctrine which said that only chrome and edge are supported.
But I can not run my program on the terminal window because it tells the code can only run on environments such as codespaces, and local vs code.
What do I miss so that the problem is occurring?
As VSCode(.dev) issue 166506 illustrates, you cannot access terminal from your browser probably because that menu entry was hidden/removed on purpose.
With VSCode 1.75 (Jan. 2023), it will be restored with an explanation.
I'm guessing we intentionally suppressed it because terminals can't run in the web, but participants were simply confused that it wasn't there without connecting its absence to the fact that vscode.dev was a browser application.
Additionally, RemoteHub contributes a welcome view for the terminal which is one of the primary ways we explain that users must continue working elsewhere to run or debug code, and the fact that the terminal is completely suppressed means one less opportunity for users to organically learn the limitations of vscode.dev through our welcome views.
The message is the one you saw:
Terminal are not available in the web editor.
To use the terminal, you will need to continue in an environment that can run code, like a codespace or local VS Code.
You can develop remotely, but you need to execute locally.
I have a program that extracts text from PDFs. It runs as a scheduled task on Windows Server 2008.
The library I use is ByteScout's PDF Extractor SDK, which is based on Tesseract under the covers.
Since it went live last November, the program has successfully extracted text from over 50,000 PDFs from many different sources.
It recently hung on a single PDF and subsequently on a second one, from the same source in the same visual format.
I am able to recreate the problem using a trivial 12 line program. I sent this program to the vendor but running that program in their environment works (it does not hang).
So I did some experimentation and this is where it gets strange.
The program works on my PC (Windows 7) if I RDP to it, but not if I am directly logged in. This behavior is repeated on other Windows 7 PCs in our environment.
It works on Server 2008 if I am RDPed, but not as a scheduled task.
It works on Windows 10, whether I am RDPed or logged in directly.
If I watch the program in Process Monitor when it is stuck, I can see that it is opening and reading C:\Windows\Fonts\times.ttf over and over again.
If it was only working using RDP, I'd wonder if the cause had anything to do with failing use of graphics acceleration or some such, but given that it doesn't work as a scheduled task where none would be present either, I think that's a blind alley.
Does anyone have any suggestions where to look next?
So ByteScout have fixed the problem. To quote Eugene on the cause ...
The problem is in System.Drawing and GDI+. Sometimes it crashes on text drawing operations that are normal in PDF but causing some internal exceptions in System.Drawing. Moreover, it's behavior varies depending on display device capabilities. That is why it works in RDP session and crashes on a desktop.
We are trying various workarounds on these crashes, attempting to fall back to alternate text drawing ways. The hanging is related to these fallbacks.
I'm having serious issues with Cypress soaking up all my available memory (16Gb). I have 30+ tests and if I attempt to run them through the UI all at once then Cypress gradually uses all my available memory and then typically fails with a test timeout error. Closing the Cypress UI always recovers all the memory. I've seen https://github.com/cypress-io/cypress/issues/431 which suggests setting numTestsKeptInMemory to 0 but this makes no difference, also running in headless mode with cypress run makes no difference either: Ultimately all my memory get soaked up.
Also during development of the tests I've been using it.only but even when running only one test at a time the memory gradually gets soaked up until restarting Cypress is needed.
I'm using Cypress 1.4.1 on Ubuntu 16.04 (elementaryOS Loki)
Does anyone else have the same trouble?
I'm assuming this is happening while using cypress open?
cypress open is used for TDD, so you can get immediate feedback while you're developing. It's recommended in the docs to NOT run all your tests in the test runner, but with cypress run instead.
You won't get to do the snapshot history navigating, and instead will only get pictures and a video recording, but your tests will run in a headless browser and not soak up your memory.
PS: If you need to fix a broken test and want to use the test runner, you can isolate it using it.only('test case...)
I have a program that I run on multiple network PCs. When I compiled the most recent version, it runs extremely slowly on 2 PCs on the network, but runs fine for everyone else.
This used to happen with my old dev PC when I had an additional 2gb RAM installed. When I would remove the additional 2gb and recompile, it would then work fine for everyone.
Now, I am on a completely new machine and am having the same issue. I've tried to rebuild the project after rebooting, but still have the same issue.
For all other PCs, the program loads in about 3-5 seconds. On these 2 PCs, it takes anywhere from 45 seconds to 1.5 mins to load...
One of the PCs is an older Dell Dimension 8200, but the other is a newer OptiPlex that is identical to several other PCs on the network, so this is what is really making it so confusing.
For now, I've had to revert to the old version so it will run correctly for everyone.
Does anyone have any idea of anything to try?
Thanks in advance!!!
Edit:
Ok, it was an exhausting day yesterday trying various things to solve this issue. Here is what I tried and where the problem begins:
Using the new program
Went back to old versions of all updated components, but still had the same issue
Using the old program
I decided to go back to the drawing board and start from the old version of the application and incrementally add the new features a small piece at a time.
Recompiled the old version using the old components - program works fine
Updated to new DevExpress components - program works fine
Updated to new ESBPCS components - program works fine
Updated to new DeepSoftware components - program works fine
Ok, so now we know there is nothing with the component sets I've updated...
Added 1 image to each of 2 image lists - program works fine
Added new database table - program works fine
Added code to open and close the new table - program works fine
Added new action to action list and added a menu item and toolbar button to new action (action does nothing at this point) - program works fine
Added a new BLANK form to the application and added code to open the new form - BAM!!!
So, adding just one form to the application is what's causing the issue! I removed all the code for the opening of the form, commented out the uses clauses and removed the uses entry from the project source and everything is back to normal!
Anybody have any idea about this?
Thanks!
Edit 2:
For #Warren P - here is my .DPR source:
program Scheduler;
uses
ExceptionLog,
Forms,
SchedulerMainUnit in 'SchedulerMainUnit.pas' {FrmMain},
SchedulerDBInfoUnit in 'SchedulerDBInfoUnit.pas' {FrmDBInfo},
SchedulerHistoryUnit in 'SchedulerHistoryUnit.pas' {FrmHistory},
SchedulerOptionsUnit in 'SchedulerOptionsUnit.pas' {FrmOptions},
SchedulerExtVersionUnit in 'SchedulerExtVersionUnit.pas' {FrmExtVersion},
SchedulerSplashUnit in 'SchedulerSplashUnit.pas' {FrmSplash},
SchedulerInfoUnit in 'SchedulerInfoUnit.pas' {FrmInfo},
SchedulerShippedUnit in 'SchedulerShippedUnit.pas' {FrmShipped}; {<-- This is the new form with the issue}
{$R *.res}
begin
Application.Initialize;
Application.Title := 'SmartWool WIP Scheduling Assistant';
Application.CreateForm(TFrmMain, FrmMain);
Application.CreateForm(TFrmDBInfo, FrmDBInfo);
Application.CreateForm(TFrmHistory, FrmHistory);
Application.CreateForm(TFrmOptions, FrmOptions);
Application.CreateForm(TFrmExtVersion, FrmExtVersion);
Application.Run;
end.
And here is the intialization section of the main form to create the splash:
initialization
FrmSplash:=TFrmSplash.Create(Application);
FrmSplash.Show;
FrmSplash.Refresh;
Edit 3:
Anybody??? Please?
It could be that the program is waiting for timeouts when trying to access resources that are not available on that machine such as network drives or Internet hosts.
Try running Process Monitor when starting up your program and look for file open calls. Filter the output so it only shows your process.
http://technet.microsoft.com/en-us/sysinternals/bb896645
Performance problems initially can seem very daunting at first.
I have been on many teams where people have tried to guess at a reason for performance problems. This sometimes works, but is far less effective than actually measuring the code.
When reproducible on a development machine, I would recommend a profiler.
There was a previous question that asked about
Delphi Profiling tools which has several possible tools you could use.
When you can't reproduce the problem on your development machine, then it becomes a bit more difficult, but not impossible. Typically I have found that problems are related to an application dependency that is different, and not performing well. Understanding the external influences on your application can help pinpoint the problem.
Specifically common external problems in some of my applications.
Network
Database
Application Servers
Installation or Data File Location (i.e. Disk Performance)
Virus and Malware Scanners
Other application interring with yours such as a virus.
To monitor for items related to the network (i.e. Database, web services, etc...)
I typically use Wireshark which allows me to see if resources are responding in expected times. My most common problem is poor performing DNS and can found using Wireshark.
You can use the AutoRuns program to determine everything that starts up when your computer does, it's useful in determine differences between machines.
But most of all I have logging that can be turned on in my applications and this allows me to isolate the problem to a specific area of code. This narrowing down to a specific section of code reduces the guessing, and allows you to focus on a few possible problems.
I created a log function for this that I call at specific places (in your case especially during startup). It adds a timestamp to each log text and stores them in a TMemo that is regularly saved. Not only very helpful when debugging, but may also shed some light on your problem.
Are you using code signing - ie Microsoft Authenticode? If so, then outdated certificate authorities on the computers can cause significant delays to startup.
First, I would try to defragment the hard disk. If still slow, I would check the power supply. Maybe your hard disk are getting insufficient energy.
Check if there is the same antivirus software on those 2 problematic computers. If so, then your Delphi application may match byte pattern used in some virus made in Delphi. Update virus definitions to solve it, or report false alarm to antivirus company, or change antivirus software.
Check if there isn't any printer installed on those 2 problematic computers. If it is so, then add any printer and try again.
Idea 1:
One reason I have seen for very slow application load time, is when printing or reporting system components like Developer Express Express Print, are in your application.
The problem I saw when using Developer Express Printing components, is that I had an offline or non-responsive network printer in my list of printers (check the control panel printer icon) that was not responding. Some of those Developer Express components seem to read some information from each printer you have installed, and the solution was to go to those clients, and delete old printers from their control panel, that were no longer being used. Each not-responding network printer added up to 60 seconds for a TCP Timeout, to the startup time of my application.
Update - Idea 2:
Download MS DebugView and install it on the machine that runs slowly. Now go back to your main development PC, open the IDE, open your main project file (right click on the project, view project source in project viewer), this will show you the contents of your main project source file (.dpr). go to the main begin....end. block. Now set a breakpoint on the main begin statement, and single step INTO (not OVER) and you will see all the module initialization sections. In each one add this: OutputDebugString('ModuleName').
Now when you run this inside the Delphi Ide you will see messages, and see how far apart they come in, and understand what is taking a long time to initialize. Instead of installing the delphi ide onto the machine that runs slowly, Debug View (which is less than 400kb single executable) will be run, and it will show you these debug messages, along with a nice time display (##.# seconds) for each message.
MS Debug view is here.
Are you allowing the forms to be constructed on initialization within the DPR source? If so, you may do well to consider whether or not you want those forms sucking up memory the entire time, more-over if you want those forms to be wasting the application's time on load.
A rule of thumb: If the form is used a LOT during the application's execution, allow it to be constructed when the application loads (this will work out faster over-all than constructing the instance "on-demand").
If the form is not used very often at all (for example, a Dialog or an About Box), delete the "Application.CreateForm" line from the DPR source, and instead construct your instance on request...
var
LForm: TfrmAbout;
begin
Application.CreateForm(LForm, TfrmAbout);
try
LForm.ShowModal;
finally
LForm.Free;
end;
end;
Now that form (which may not even be displayed during the program's execution) is not sucking up system resources, and will not slow down the application's load time.
It may not solve your problem 100%, but it should certainly help!
I'm debugging plugins on Windows 7 and of course the plugin host (Cubase5.exe) occasionally crashes because of errors in the plugin. On XP or Vista, I could always restart it immediately and continue working. But on Windows 7, even though Cubase appears to close, it is still visible in Task Manager and I cannot kill it by any means. After a minute or two, it disappears by itself. In the mean time, I can't work because the plugin DLL is still locked by the process.
Does anyone know why this happens on Windows 7? I've already tried disabling Automatic Error Reporting but that didn't help. I've tried attaching cdb to Cubase, but I get:
Cannot debug pid 5252, NTSTATUS 0xC0000001
"{Operation Failed} The requested operation was unsuccessful."
Debuggee initialization failed, NTSTATUS 0xC0000001
"{Operation Failed} The requested operation was unsuccessful."
I tried following the instructions here but it appears this is only possible if I connect a second machine to my computer to debug it remotely.
I finally found the solution, using this article:
http://blogs.technet.com/b/markrussinovich/archive/2005/08/17/unkillable-processes.aspx
This required installing the Windows Debugging Tools for Windows (nice name) and LiveKd, but by following the steps outlined I was able to track which driver was causing the process to hang: it turned out to be the 64-bit driver for the M-Audio Oxygen 8 V2 controller I'm using. Unfortunately no driver update is available.
Anyway, if anyone encounters a similar problem, this is the way to solve it.
Have you tried Process Explorer by Mark Russinovich? It is really useful for "killing":)
If you have error reporting enabled, it's possible that werfault.exe has Cubase open to write a minidump for crash reporting purposes.
This is just a stab in the dark but it might be your problem.
One thing you can try is to check with Process Monitor what Cubase is doing. Set a filter so that everything with a process name containing "cubase" will be recorded. It could be that you are facing some timeout issue when Cubase wants to exit.
you can end the process the service is running under. You can find this process by going to the Services tab of the Task Manager, right-clicking, and selecting Go To Process(you need to click the Show processes from all users button.). Note that one process may host multiple services (especially if it's svchost.exe), and ending the process will kill all those services. Also, this is an unclean exit, and may cause data corruption depending on what the service(s) was doing when you killed it.
Depending on which specific service you are trying to stop, there may be a cleaner way to simulate failure.