null error

[Hetmanets_ua]

Hallo there ! I have a problem with EU4—whenever I launch the game, I get a 'Null error' and don’t know how to fix it. I've already tried reinstalling the game, but that didn’t help. Below is a screenshot of the error.
https://imgur.com/a/RiPl8d6

[grotaclas]

Does the error popup show more details if you hover over or click on the red triangle? What happens when you start eu4.exe directly?

[Hetmanets_ua]

Originally posted by grotaclas:

Does the error popup show more details if you hover over or click on the red triangle? What happens when you start eu4.exe directly?

nothing happens, I just click ok and it doesn't start
https://imgur.com/a/3VnWSGK this is a screen on english

[Hetmanets_ua]

Originally posted by grotaclas:

Does the error popup show more details if you hover over or click on the red triangle? What happens when you start eu4.exe directly?

What can you advise me?

[grotaclas]

Originally posted by Hetmanets_ua:

nothing happens, I just click ok and it doesn't start
https://imgur.com/a/3VnWSGK this is a screen on english

Do you mean the OK button in the popup from your screenshot("An error occured")? When I asked what happens when you start eu4.exe directly, I meant that you open the folder where eu4 is installed and that you start eu4.exe which is in that folder. You are using windows, right? On macOS the program would be called eu4.app instead of eu4.exe

[Hetmanets_ua]

Originally posted by grotaclas:

Originally posted by Hetmanets_ua:

nothing happens, I just click ok and it doesn't start
https://imgur.com/a/3VnWSGK this is a screen on english

Do you mean the OK button in the popup from your screenshot("An error occured")? When I asked what happens when you start eu4.exe directly, I meant that you open the folder where eu4 is installed and that you start eu4.exe which is in that folder. You are using windows, right? On macOS the program would be called eu4.app instead of eu4.exe

yes, when I launch direct e4 the game starts but I still need to launch it through the launcher

[grotaclas]

Originally posted by Hetmanets_ua:

yes, when I launch direct e4 the game starts but I still need to launch it through the launcher

If starting from eu4.exe works, that means that the problem is related to the launcher. Usually it is one of the following problems:

• you configured the game to run as administrator, but the launcher doesn't run as administrator. In that case disable the option to run the game as administrator
  
• you have an antivirus or ransomware protection software that prevents the launcher from writing its files. In that case you have to add the launcher(and eu4) to the exception list of your software
  
  • If you have Windows Defender(also called Microsoft Defender), add the launcher and eu4 to the Ransomware "Apps Allowed Through" list(here[docs.microsoft.com] are instructions for that).
    
  • If you have bitdefender, add the launcher and eu4 to the list of ransomware exceptions and "give it access" to "protected files".
    
  • If you have avast, you have to add the launcher and eu4 to the allowed list in the ransomware shield
• the launcher installation is broken. That can be can often be fixed by reinstalling the launcher:
  
  • On Windows, first use the windows uninstall function to uninstall "Paradox Launcher v2"(if it is there). And then delete the launcher directories:
    
    • C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/
      
    • C:/users/<UserName>/AppData/Local/Paradox Interactive/
      
    • C:/users/<UserName>/AppData/Roaming/Paradox Interactive/launcher-v2/
      
    • Documents/paradox interactive/.cpatch/
      
    • every directory in Documents/paradox interactive/ that starts with launcher-v2
  • In Linux delete the directories ~/.paradoxlauncher and "~/.local/share/Paradox Interactive/launcher-v2/" and the file "~/.local/share/Paradox Interactive/launcherpath"
    
  • In macOS delete the directory "~/Library/Application Support/Paradox Interactive"
    
  • Afterwards you can start the game from steam again to reinstall the launcher.

[Hetmanets_ua]

Originally posted by grotaclas:

Originally posted by Hetmanets_ua:

yes, when I launch direct e4 the game starts but I still need to launch it through the launcher

If starting from eu4.exe works, that means that the problem is related to the launcher. Usually it is one of the following problems:

• you configured the game to run as administrator, but the launcher doesn't run as administrator. In that case disable the option to run the game as administrator
  
• you have an antivirus or ransomware protection software that prevents the launcher from writing its files. In that case you have to add the launcher(and eu4) to the exception list of your software
  
  • If you have Windows Defender(also called Microsoft Defender), add the launcher and eu4 to the Ransomware "Apps Allowed Through" list(here[docs.microsoft.com] are instructions for that).
    
  • If you have bitdefender, add the launcher and eu4 to the list of ransomware exceptions and "give it access" to "protected files".
    
  • If you have avast, you have to add the launcher and eu4 to the allowed list in the ransomware shield
• the launcher installation is broken. That can be can often be fixed by reinstalling the launcher:
  
  • On Windows, first use the windows uninstall function to uninstall "Paradox Launcher v2"(if it is there). And then delete the launcher directories:
    
    • C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/
      
    • C:/users/<UserName>/AppData/Local/Paradox Interactive/
      
    • C:/users/<UserName>/AppData/Roaming/Paradox Interactive/launcher-v2/
      
    • Documents/paradox interactive/.cpatch/
      
    • every directory in Documents/paradox interactive/ that starts with launcher-v2
  • In Linux delete the directories ~/.paradoxlauncher and "~/.local/share/Paradox Interactive/launcher-v2/" and the file "~/.local/share/Paradox Interactive/launcherpath"
    
  • In macOS delete the directory "~/Library/Application Support/Paradox Interactive"
    
  • Afterwards you can start the game from steam again to reinstall the launcher.

I tried but it didn't work

[grotaclas]

Originally posted by Hetmanets_ua:

Originally posted by grotaclas:

If starting from eu4.exe works, that means that the problem is related to the launcher. Usually it is one of the following problems:

• you configured the game to run as administrator, but the launcher doesn't run as administrator. In that case disable the option to run the game as administrator
  
• you have an antivirus or ransomware protection software that prevents the launcher from writing its files. In that case you have to add the launcher(and eu4) to the exception list of your software
  
  • If you have Windows Defender(also called Microsoft Defender), add the launcher and eu4 to the Ransomware "Apps Allowed Through" list(here[docs.microsoft.com] are instructions for that).
    
  • If you have bitdefender, add the launcher and eu4 to the list of ransomware exceptions and "give it access" to "protected files".
    
  • If you have avast, you have to add the launcher and eu4 to the allowed list in the ransomware shield
• the launcher installation is broken. That can be can often be fixed by reinstalling the launcher:
  
  • On Windows, first use the windows uninstall function to uninstall "Paradox Launcher v2"(if it is there). And then delete the launcher directories:
    
    • C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/
      
    • C:/users/<UserName>/AppData/Local/Paradox Interactive/
      
    • C:/users/<UserName>/AppData/Roaming/Paradox Interactive/launcher-v2/
      
    • Documents/paradox interactive/.cpatch/
      
    • every directory in Documents/paradox interactive/ that starts with launcher-v2
  • In Linux delete the directories ~/.paradoxlauncher and "~/.local/share/Paradox Interactive/launcher-v2/" and the file "~/.local/share/Paradox Interactive/launcherpath"
    
  • In macOS delete the directory "~/Library/Application Support/Paradox Interactive"
    
  • Afterwards you can start the game from steam again to reinstall the launcher.

I tried but it didn't work

which of these things did you try and in what way didn't it work?