How to solve "A debugger has been found running in your system...."

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I was using the Meta Trader 5 inside Linux OpenSuse and Wine .

Until recently it was working very well, but now when trying to run this program, it does not work anymore. The following error message is displayed

"A debugger has been found running in your system please unload it from memory and restart your program "

I uninstalled the "Meta Trader 5 " program, deleted the ".wine" directory and reinstalled the wine, but the problem continues.

I tried to run from a different user. The problem continues.

For lack of options, I did a new installation of OpenSuse and maintaining the folder /home, without the "wine" and downloaded a new copy of the program, but the error continues.

Does anyone know how to solve this problem?

Thanks in advance.

[Deleted]
Sergio Gelli: I was using the Meta Trader 5 inside Linux OpenSuse and Wine . Until recently it was working very well, but now when trying to run this program, it does not work anymore. The following error message is displayed "A debugger has been found running in your system please unload it from memory and restart your program". I uninstalled the "Meta Trader 5 " program, deleted the ".wine" directory and reinstalled the wine, but the problem continues. I tried to run from a different user. The problem continues. For lack of options, I did a new installation of OpenSuse and maintaining the folder /home, without the "wine" and downloaded a new copy of the program, but the error continues. Does anyone know how to solve this problem? Thanks in advance.

Forum on trading, automated trading systems and testing trading strategies

New MetaTrader 5 build 1525: Representing trading history as positions and tester improvements

Sergey Golubev, 2017.01.31 20:12

This message?


There is thread in russian part of the forum - this thread, and you can read it using in-build online translator which is located above every post there (you can select your language for example):


So, they found the decision to fix it: they found this small article and followed all the steps and everything was fixed.
If you can not fix so make a post to this russian thread and users of rus part of the forum will help I hope.


Fernando Carreiro :
hello Fernando

Thank you very much, the link you indicated solved the problem,. I just don't understand why this happened,

Before that I ran MQL 5 in 64 Bits for more than a year and suddenly....crash....

Now I'm running again, but in a 32-bit version thanks to your tip.

I am afraid that this will slow down the sending of orders due to a more complicated processing, so I would like the platform to work again in 64 bits

Do you know anything about how to get back to how it was before, if that's possible?

Thank you very much.

Sergio Gelli
[Deleted]
Sergio Gelli: Muito obrigado, o link que indicou resolveu o problema,. apenas fico sem entender porque isso aconteceu, Antes rodei o MQL 5 em 64 Bits por mais de um ano e de repente....crash.... Agora estou rodando novamente, mas numa versão 32 Bits graças à sua dica. Temo que isso venha trazer mais lentidão no envio de ordens devido um processamento mais complicado, assim gostaria que a plataforma voltasse a funcionar em 64 bits.

Sabes alguma coisa à respeito de como voltar como era antes, se é que é possível?
You are welcome!

However, even though both of us are native Portuguese speakers, this is the English forum and we should respect that so that all users here can understand. There is also a dedicated Portuguese section if you prefer.

As for your question, I don't personally use Linux or Wine so cannot answer it. That is why I provided you with the link, so that you could interact with other users that do in fact use Linux and Wine and can probably answer your question.

Hello, you have to switch wine architecture from 64bit to 32bit. In first you have to have installed 32bit binary of wine. Before installation of wine use command: dpkg --add-architecture i386, for allowing install 32bit binaries on 64bit system. Install wine.

Next step for install 32bit programs is using of command:  WINEARCH=win32 WINEPREFIX=/home/user/.something wineboot  (don't use .wine, use somethings like .wine32)

(WINEARCH wil switch the architecture, WINEPREFIX is folder with installed programs,(.wine is default WINEPREFIX and using 64bit binaries),

Note: Default wine architecture is still 64bit, but you can switch to another architecture with WINEARCH,, and you will have to do this every time you will install 32bit program.

Next step is command for install MT4 or 5 to your new WINEPREFIX. Use command: WINEPREFIX=/home/user/.somethings wine start /unix  way/to/mtsetup.exe

(this command will tell to wine: use that wineprefix at first and install program in to that.

Note: Default wine architecture is still 64bit, but you can switch between 64bit and 32bit..


Hope it helped

sorry for my english

have a nice day

Sources:

https://wiki.winehq.org/Debian

https://wiki.winehq.org/FAQ (topic6.5.3)

Debian - WineHQ Wiki
  • wiki.winehq.org
WineHQ only builds binary packages for the development and staging branches, in order to encourage widespread testing of bugfixes and new features by ordinary users. Binary packages for the stable branch are the responsibility of the distros. If you are looking for an updated stable package, ask your distro where to find it. First, enable 32...
It works
Aliel:
It works

even doing this proceed the expert advisor doesn't work=(

help please!

Aliel:

even doing this proceed the expert advisor doesn't work=(

help please!

Hi Aliel, I don't know. Is metaeditor and strategy tester working or you have problems with instalation of expert advisor?

With version of wine do U have?

Folder for instalation advisors, indikators, etc. is in folder with metatrader in programfiles, called "MQL".


Hello,
i am facing this issue on M1 Pro mac.
Everything worked fine for many months, but today I got exact that error.
I think, that MT5 on Mac also uses Wine.

Does anyone has a solution for this?
Thanks

Anton Frederic Burmester #:
Hello,
i am facing this issue on M1 Pro mac.
Everything worked fine for many months, but today I got exact that error.
I think, that MT5 on Mac also uses Wine.

Does anyone has a solution for this?
Thanks

The similar issue was discussed on Russian forum.

The question:

more -


PS. Update 24 October 2026:

Forum on trading, automated trading systems and testing trading strategies

Ubuntu mt5 false debugger detection after recent update.

Sergey El, 2026.10.21 13:58

Download the macOS .pkg file from metatrader5.com and install it over your existing version. The Wine version has been upgraded from 11.1 to 11.7. Patches have been added to resolve potential crashes or fake launch detect in a debugger on macOS 26.

If you are using a .dmg file that was built before 2023, a clean installation will be required.


Forum on trading, automated trading systems, and trading strategy testing

The MT5 build for Mac stopped working after the update.

Renat Fatkhullin , 2026.10.24 13:03

You need to download and install the new version of the MetaTrader 5 installer for macOS on top of it to use the profiles:

  • Wine 11.7
  • Windows 11

The starting banner should look like this: 

2026.10.24 15:58:55.793	Terminal	MetaTrader 5 x64 build 6283 started for MetaQuotes Ltd.
2026.10.24 15:58:55.822	Terminal	Windows 11 build 22000 on Wine 11.7 Darwin 27.0.0, 10 x VirtualApple @ 2.50GHz, x64, 10 / 23 Gb memory, 987 / 1858 Gb disk, GMT+2
2026.10.24 15:58:55.822	Terminal	C:\Program Files\MetaTrader 5

If the profiles are lower than those specified, there will be problems.



I am on Linux Mint 22.3 - Cinnamon 64-bit. My MT4 running in Wine 10.0 was always working.

I upgraded Wine to latest 11.0 as suggested by Update Manager. I experience "a debugger has been found on your system, unload it from memory and restart your program" also.

To downgrade Wine. I do the following:

$ sudo apt install wine=10.0
[sudo] password for user:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package wine is a virtual package provided by:
  winehq-staging 11.0.0~noble-1
  winehq-stable 11.0.0.0~noble-1
  winehq-devel 11.0.0~noble-1
  wine 9.0~repack-4build3
You should explicitly select one to install.

From the above we can see the valid existing names. Althought Wine 10.0 in not in there, I choose the most suitable.

$ sudo apt install wine=9.0~repack-4build3
(...after apt installation...)

$ wine --version
wine-9.0 (Ubuntu 9.0~repack-4build3)

$ wine terminal.exe

My MT4 continues to work again.

------------------------

PS. Update 24 October 2026:

Forum on trading, automated trading systems and testing trading strategies

Ubuntu mt5 false debugger detection after recent update.

Sergey El, 2026.10.21 13:58

Download the macOS .pkg file from metatrader5.com and install it over your existing version. The Wine version has been upgraded from 11.1 to 11.7. Patches have been added to resolve potential crashes or fake launch detect in a debugger on macOS 26.

If you are using a .dmg file that was built before 2023, a clean installation will be required.


Forum on trading, automated trading systems, and trading strategy testing

The MT5 build for Mac stopped working after the update.

Renat Fatkhullin , 2026.10.24 13:03

You need to download and install the new version of the MetaTrader 5 installer for macOS on top of it to use the profiles:

  • Wine 11.7
  • Windows 11

The starting banner should look like this: 

2026.10.24 15:58:55.793	Terminal	MetaTrader 5 x64 build 6283 started for MetaQuotes Ltd.
2026.10.24 15:58:55.822	Terminal	Windows 11 build 22000 on Wine 11.7 Darwin 27.0.0, 10 x VirtualApple @ 2.50GHz, x64, 10 / 23 Gb memory, 987 / 1858 Gb disk, GMT+2
2026.10.24 15:58:55.822	Terminal	C:\Program Files\MetaTrader 5

If the profiles are lower than those specified, there will be problems.



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