TaskManager | A C14 Task Manager / Scheduler | Job Scheduling library

When importing code from other file into a "main" file, we use something called a header file (.h). Never include a .cpp directly.

For example, you have a file containing some function like this

The issue was present in the file path. I was using a relative path(ex ./build/demo.txt) to read/write files or folders. Once I used an absolute(root + ./build/demo.txt) path instead app is working normally.

What type is the ffmpegcmd variable? Is it a string or a list/sequence?

Note that Windows and Linux/POSIX behave differently with the shell=True parameter enabled or disabled. It matters whether ffmpegcmd is a string or a list.

Direct excerpt from the documentation:

On POSIX with shell=True, the shell defaults to /bin/sh. If args is a string, the string specifies the command to execute through the shell. This means that the string must be formatted exactly as it would be when typed at the shell prompt. This includes, for example, quoting or backslash escaping filenames with spaces in them. If args is a sequence, the first item specifies the command string, and any additional items will be treated as additional arguments to the shell itself. That is to say, Popen does the equivalent of:

Popen(['/bin/sh', '-c', args[0], args[1], ...])

On Windows with shell=True, the COMSPEC environment variable specifies the default shell. The only time you need to specify shell=True on Windows is when the command you wish to execute is built into the shell (e.g. dir or copy). You do not need shell=True to run a batch file or console-based executable.

Well after a week of battling it I finally found a solution. It turns out that the reason I am getting this error is simply because I am running this code on Expo which does not allow background location fetching. There is nothing wrong with the code, all I had to do was to build a standalone App (expo build:android) and the standalone version of the App worked just fine and could fetch background location 😁

I also passed an extra parameter to my Location.startLocationUpdatesAsync which increased the effectiveness of background-location fetching and actually allowed me to visualize that the App is fetching the background-location via a notification like this:

The problem is that you're continuously creating a new instance of the MainWindow, so the spinbox used for tracking the number of processes always has the default initial value, 1.

You're also doing the same error more than once, and you're not even using the cached_property for the TaskManager.

A possible solution is to pass the main window instance to the task manager, so that it will use the actual value of the spinbox. Consider that this is not a very elegant solution, as the task manager should probably know nothing about the main window, and all communication should happen using more signals and slots.

In your base template, you have a form tag without a closing tag. That's the problem add the closing tag and it will render your form.

Problem: According to the solution provided by the jar2exe official website, Every class has a ClassLoader that loads the class.

The ClassLoader of protected (encrypted) classes, is a special ClassLoader, while the ClassLoader of unprotected classes is another ClassLoader. When the program is to load a class or resource, it will use the ClassLoader of the current class by default, such as "Class.forName()". So in the Eclipse Birt program is to load protected resource within an unprotected class, the ClassLoader of the unprotected class cannot load the protected resources. In this problem, the program tried to load ReportHandler class from an unprotected ApplicationClassLoader class.

Solution: When a generated exe file runs, The context ClassLoader of the current thread, is a Special ClassLoader. So we tried to download the source of Eclipse Birt Engine and then changed the body of loadClass(className) method of ApplicationClassLoader class and replaced the following line:

I can't see your full settings.py but I think the problem is in there. You need to add the actual directory. Here is an example from one of my projects, just copy/paste over yours and it should fix it:

See https://issues.apache.org/jira/browse/FLINK-12122. I think this issue is impacting your jobs. You can try either upgrading to Flink 1.9.2, or setting cluster.evenly-spread-out-slots: true in the flink-conf.yaml