How to fix the Runtime Error 21 Solidworks Error 21
Error InformationError name: Solidworks Error 21
Error number: Error 21
Description: Error 21: Solidworks has encountered a problem and needs to close. We are sorry for the inconvenience.
Developer: Dassault Systèmes
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About Runtime Error 21
Runtime Error 21 happens when Solidworks fails or crashes whilst it’s running, hence its name. It doesn’t necessarily mean that the code was corrupt in some way, but just that it did not work during its run-time. This kind of error will appear as an annoying notification on your screen unless handled and corrected. Here are symptoms, causes and ways to troubleshoot the problem.
Here we list some definitions for the words contained in your error, in an attempt to help you understand your problem. This is a work in progress, so sometimes we might define the word incorrectly, so feel free to skip this section!
- Solidworks - SolidWorks is a 3D mechanical CAD computer-aided design program that runs on Microsoft Windows
Symptoms of Code 21 - Solidworks Error 21
Runtime errors happen without warning. The error message can come up the screen anytime Solidworks is run. In fact, the error message or some other dialogue box can come up again and again if not addressed early on.
There may be instances of files deletion or new files appearing. Though this symptom is largely due to virus infection, it can be attributed as a symptom for runtime error, as virus infection is one of the causes for runtime error. User may also experience a sudden drop in internet connection speed, yet again, this is not always the case.
(For illustrative purposes only)
Causes of Solidworks Error 21 - Error 21
During software design, programmers code anticipating the occurrence of errors. However, there are no perfect designs, as errors can be expected even with the best program design. Glitches can happen during runtime if a certain error is not experienced and addressed during design and testing.
Runtime errors are generally caused by incompatible programs running at the same time. It may also occur because of memory problem, a bad graphics driver or virus infection. Whatever the case may be, the problem must be resolved immediately to avoid further problems. Here are ways to remedy the error.
Runtime errors may be annoying and persistent, but it is not totally hopeless, repairs are available. Here are ways to do it.
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- Open Task Manager by clicking Ctrl-Alt-Del at the same time. This will let you see the list of programs currently running.
- Go to the Processes tab and stop the programs one by one by highlighting each program and clicking the End Process buttom.
- You will need to observe if the error message will reoccur each time you stop a process.
- Once you get to identify which program is causing the error, you may go ahead with the next troubleshooting step, reinstalling the application.
- For Windows 7, click the Start Button, then click Control panel, then Uninstall a program
- For Windows 8, click the Start Button, then scroll down and click More Settings, then click Control panel > Uninstall a program.
- For Windows 10, just type Control Panel on the search box and click the result, then click Uninstall a program
- Once inside Programs and Features, click the problem program and click Update or Uninstall.
- If you chose to update, then you will just need to follow the prompt to complete the process, however if you chose to Uninstall, you will follow the prompt to uninstall and then re-download or use the application's installation disk to reinstall the program.
- For Windows 7, you may find the list of all installed programs when you click Start and scroll your mouse over the list that appear on the tab. You may see on that list utility for uninstalling the program. You may go ahead and uninstall using utilities available in this tab.
- For Windows 10, you may click Start, then Settings, then choose Apps.
- Scroll down to see the list of Apps and features installed in your computer.
- Click the Program which is causing the runtime error, then you may choose to uninstall or click Advanced options to reset the application.
- Uninstall the package by going to Programs and Features, find and highlight the Microsoft Visual C++ Redistributable Package.
- Click Uninstall on top of the list, and when it is done, reboot your computer.
- Download the latest redistributable package from Microsoft then install it.
- You should consider backing up your files and freeing up space on your hard drive
- You can also clear your cache and reboot your computer
- You can also run Disk Cleanup, open your explorer window and right click your main directory (this is usually C: )
- Click Properties and then click Disk Cleanup
- Reset your browser.
- For Windows 7, you may click Start, go to Control Panel, then click Internet Options on the left side. Then you can click Advanced tab then click the Reset button.
- For Windows 8 and 10, you may click search and type Internet Options, then go to Advanced tab and click Reset.
- On the same Internet Options window, you may go to Advanced tab and look for Disable script debugging
- Put a check mark on the radio button
- At the same time, uncheck the "Display a Notification about every Script Error" item and then click Apply and OK, then reboot your computer.
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