Libraries: Log4mql (MT5)

Marcio Yokoyama 2021.03.31 20:56 #1

I'm using Log4mql (MT5) in my custom indicator and with 2 last versions of MT5 I'm facing an issue to watch local variables in debug. All local variables have the value "Expression could not be evaluated". If I remove Log4mql from my code, I can watch all local variables again. The strange thing is that global variables show the values normally.

In my tests, I commented all lines with LOG_ and I have this situation after the line where I declare CLogManager LogManager(...). When I commented this line too, the debug works again.

Have you faced this situation too?

Now I'm using build 2860 of MT5.

Thanks.

Marcio

Files:

debug.jpg 37 kb

Questions from Beginners MQL5 [ BUG ] MT5 "Expression could not be

lippmaje 2021.04.02 08:42 #2

This happens also to me but I don't see how to work around this in the library. It's definitely an issue that came up with the recent builds. You may want to debug with an older version until it's fixed.

Recognise changes in the MetaTrader 5 Platform update Machine learning in trading:

DidMa 2022.05.18 12:50 #3

Hi @lippmaje!

I'm using Log4mql (MT5) in my custom indicator and with Build 3280 (22 April 2022).

I started to use several functions like LOG_DEBUG and LOG_INFO, and with parameter you provided in the exemple_sample file. It worked half a day but suddenly my debugger started to act weirdly:

Step over didn't work well and jumped to much further into the code and obviously generated fatal errors. Even when using step into every time it acted like this.

I didn't think this could happen with a library, but I tried what Marcio Yokoyama did, commented all what was linked with library and it started to work well again.

Did you or someone else face this behaviour ?

Maybe it is linked with the computer environment ?

Thank you for you replies.

lippmaje

2021.01.20
www.mql5.com

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what log system to strange issue - while All objects get deleted

Raf 2024.06.30 03:37 #4

Translator

Hi everyone,

I'm testing this library and I've a trivial question, I copied the ex5 library in the Libraries folder, include file and the sample, it seems working well but in the MetaEditor the ex5 files does not show up, the other files are synced with MQL5 storage so I can devlop using another computer, the issue if I cannot see the ex5 library file I cannot add it into the storage, does anyone know how libraries can be synced in the storage ?

UPDATE: I need to click right in the library folder and show all files

Thanks

include file in include MetaTrader 5 Strategy Tester: New MetaTrader 5 Platform

Sebastian Mazalu 2025.01.27 18:40 #5

Hi there, any change for a version update? I tried to use it as described in MT5 and I got this startup error:

2025.01.27 20:37:47.153 log4mql import module 'log4mqllib.ex5' is too old and cannot be used from 'log4mql.ex5', recompile it please

My MT5 Version is: v. 5.00 build 3778 , 6 Jan 2025

Or can you provide also the source code so we can recompile each time is needed ? :)

'Channel.ex5' version is too Errors, bugs, questions Strategy Tester - Debug

Dominik Egert 2025.01.28 07:35 #6

Sebastian Mazalu #: Hi there, any change for a version update? I tried to use it as described in MT5 and I got this startup error:

2025.01.27 20:37:47.153 log4mql import module 'log4mqllib.ex5' is too old and cannot be used from 'log4mql.ex5', recompile it please

My MT5 Version is: v. 5.00 build 3778 , 6 Jan 2025

Or can you provide also the source code so we can recompile each time is needed ? :)

The source code is provided.

Code Base

Log4mql (MT5)

lippmaje, 2020.10.13 10:23
A logging library similar to Log4j but for MQL.