# Modelica compiler Error **URL:** \ **Category:** Xcos\ **Created:** [October 25, 2024, 4:35pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692 "2024-10-25T16:35:06Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![Sid](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@Sid](https://scilab.discourse.group/u/Sid)\ **Post date:** [October 25, 2024, 4:35pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/1 "2024-10-25T16:35:06Z")
Got XCOS-Electrical compiler error: > “c\_pass1: build the modelica meta-block failed” atomsTest(‘mingw’): > [SCIHOME\atoms\x64\mingw\10.3.1] link…failed: dia and ref are not equal > 013/015 - [SCIHOME\atoms\x64\mingw\10.3.1] links…failed: Slave Scilab exited with error code -1.074D+09 TEST : [SCIHOME\atoms\x64\mingw\10.3.1] link failed: dia and ref are not equal Compare the following files: - C:\Users\*\*\*\AppData\Local\Temp\SCI\_TMP\_14744\_32750\link.dia - C:\Users\*\*\*\AppData\Roaming\Scilab\scilab-2023.1.0\atoms\x64\mingw\10.3.1/tests/unit\_tests\link.dia.ref TEST : [SCIHOME\atoms\x64\mingw\10.3.1] links failed: Slave Scilab exited with error code -1.074D+09 Check the following file : - C:\Users\*\*\*\AppData\Local\Temp\SCI\_TMP\_14744\_32750\links.dia.tmp Or launch the following command : - exec(“C:\Users\*\*\*\AppData\Roaming\Scilab\scilab-2023.1.0\atoms\x64\mingw\10.3.1\tests\unit\_tests\links.tst”); ---
**Author:** ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)\ **Post date:** [October 26, 2024, 11:08am UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/2 "2024-10-26T11:08:38Z")
Hello, welcome to Scilab’s Discourse ! To me, using atomsTest to debug your issue is not the best approach. First, tell us more about your setup. If I am right, you are using Scilab 2023.1. Can you verify that mingw works fine in a more general context, for example, can you test some of the ilib\_build or ilib\_for\_link examples ? You can also try with a more recent version of Scilab (e.g. 2024.1.0), or uninstall the mingw toolbox and install Visual Studio community edition instead. S. ---
**Author:** ![Sid](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@Sid](https://scilab.discourse.group/u/Sid)\ **Post date:** [October 26, 2024, 2:14pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/3 "2024-10-26T14:14:57Z")
I’ve tried all vers. (6.1.1, 23, 24), all compilers (mingw, msvc), diff. paths, diff. arch (32, 64). Functions like haveacompiler and findmsvc works fine (No errors). But Demos from xcos-Electrical returns error “c\_pass1: build the modelica meta-block failed”. And If I try to make my own electrical model I get ““Undefined variable ‘model’ in function ‘build\_modelica\_block’.”” When I try ex. from demos “call a C func (using C/c++ ctand libs” I get: > Calling a C function from Scilab. > “#include \” > “void bar(double \*a,double \*b,double \*c)” > “{ \*c = expm1(\*a \* log1p(\*b)); }” > Calling C function. Z = (1+Y)\*\*X - 1 > with X = 5 > with Y = 7 > Z = bar(X, Y); > Result Z = 32766 Looks like it works: > Calling ilib\_for\_link to build a Fortran subroutine. > Generate a loader file > Generate a Makefile > Running the Makefile > Compilation of foof.obj > Building shared library (be patient) > Generate a cleaner file > Shared archive loaded. > Link done. Running ilib\_build func: Generate a gateway file Generate a loader file Generate a Makefile Running the makefile Compilation of build\_c.obj Compilation of build\_c.obj Compilation of build\_c.obj Compilation of fun1.obj Compilation of fun2.obj Compilation of sci\_fun1.obj Building shared library (be patient) Generate a cleaner file Shared archive loaded. Link done. ---
**Author:** ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)\ **Post date:** [October 26, 2024, 4:54pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/4 "2024-10-26T16:54:30Z")
OK. But what is " xcos-Electrical" ? Please be more precise. Is it a Scilab demo or a demo of a given toolbox ? S. ---
**Author:** ![Sid](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@Sid](https://scilab.discourse.group/u/Sid)\ **Post date:** [October 26, 2024, 6:14pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/5 "2024-10-26T18:14:15Z")
If I try “Demonstrations - Xcos-Electrical Systems” I got “c\_pass1: build the modelica meta-block failed” Error. If I try to make my own Xcos-Electrical project I got “Undefined variable ‘model’ in function ‘build\_modelica\_block’.” Error ---
**Author:** ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)\ **Post date:** [October 26, 2024, 6:35pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/6 "2024-10-26T18:35:29Z")
Can you quit Scilab, completely remove your Scilab user settings folder (something like C:\Users\id\AppData\Roaming\Scilab), then retry the demo by using latest Scilab version (2025.0.0) ? If possible, leave only one compiler on your machine, e.g. Visual Studio 2019. S. ---
**Author:** ![Sid](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@Sid](https://scilab.discourse.group/u/Sid)\ **Post date:** [October 26, 2024, 6:39pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/7 "2024-10-26T18:39:29Z")
I always clear AppData\Roaming after uninstall. Don’t think it will help. But I’ll try. I also have tried to use only one compiler. ---
**Author:** ![Sid](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@Sid](https://scilab.discourse.group/u/Sid)\ **Post date:** [October 27, 2024, 4:13am UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/8 "2024-10-27T04:13:17Z")
1. Uninstalled Sci (also deleted all from Roaming) 2. Deleted MinGW (also deleted all Var. paths) 3. Logged out/ Logged In 4. Made simple c++ program and compiled/run it to be sure msvc is working 5. Installed Sci (the last one) 6. call findmsvc func. (Returns “Visual Studio Community 2022”) 7. Restarted PC All in vain. All the errors are the same. Nothing’s changed. I think something wrong with /bin/modelicat.exe file. When I try to run this file I got an error: “The application was unable to start correctly (0xc000007b)” And all that examples with lib\_for\_link doesn’t work anymore. The error is: “Invalid index” So, MinGW is better. ---
**Author:** ![vincent.couvert](https://avatars.discourse-cdn.com/v4/letter/v/f4b2a3/32.png) [@vincent.couvert](https://scilab.discourse.group/u/vincent.couvert)\ **Post date:** [November 5, 2024, 11:02am UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/9 "2024-11-05T11:02:03Z")
Hello @Sid , When you installed Visual Studio Community, did you check the options as asked : [here](https://gitlab.com/scilab/scilab/-/wikis/Developers/configure-windows-environment)? Best regards. ---
**Author:** ![vincent.couvert](https://avatars.discourse-cdn.com/v4/letter/v/f4b2a3/32.png) [@vincent.couvert](https://scilab.discourse.group/u/vincent.couvert)\ **Post date:** [November 12, 2024, 10:20am UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/10 "2024-11-12T10:20:00Z")
Hello, Actually, the problem you are facing is not related to your compiler (MinGW) but is probably due to a missing DLL (which is mandatory for `modelicat.exe`) on your system. Can you install `vcredist_x86.exe` (32-bit DLLs package) downloadable from [https://www.microsoft.com/en-us/download/details.aspx?id=26999](https://www.microsoft.com/en-us/download/details.aspx?id=26999) ? This should fix the problem. Best regards. ---
**Author:** ![Sid](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@Sid](https://scilab.discourse.group/u/Sid)\ **Post date:** [November 16, 2024, 5:53pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/11 "2024-11-16T17:53:32Z")
vincent, I’ve installed it. So, Now I try to use Sci 2025. when I try to run xcos-demos-Electrical I got error from modelicat.exe (The app was unable to start correctly) Something wrong with modelicat.exe under W11. modelicat.exe is not working from Sci25, 23 and 611. I’ve noticed the Bat file in \AppData\Local\Temp\SCI\_TMP\_12904\_14610 using wrong modelicat.exe path in all Sci versions. It’s “C:\PROGRA~1\SCILAB~1.1\bin\modelicat.exe” > [@vincent.couvert](#): > > Hello, > > Actually, the problem you are facing is not related to your compiler (MinGW) but is probably due to a missing DLL (which is mandatory for `modelicat.exe`) on your system. > > Can you install `vcredist_x86.exe` (32-bit DLLs package) downloadable from [https://www.microsoft.com/en-us/download/details.aspx?id=26999](https://www.microsoft.com/en-us/download/details.aspx?id=26999) ? This should fix the problem. > > Best regards. ---
**Author:** ![Sid](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@Sid](https://scilab.discourse.group/u/Sid)\ **Post date:** [November 17, 2024, 6:38pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/12 "2024-11-17T18:38:41Z")
So, Now I’m using Sci\_611. At least it works with compiler gcc. Will be waiting for someone finally fix that W11 problem. ---
**Author:** ![vincent.couvert](https://avatars.discourse-cdn.com/v4/letter/v/f4b2a3/32.png) [@vincent.couvert](https://scilab.discourse.group/u/vincent.couvert)\ **Post date:** [November 19, 2024, 4:27pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/13 "2024-11-19T16:27:56Z")
Hi @Sid Can you try to run `modelicat.exe` with administrator rights to see if it fixes the problem? (Right-click on `modelicat.exe` and then select “Run as Administrator”) Best regards. ---
**Author:** ![Sid](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@Sid](https://scilab.discourse.group/u/Sid)\ **Post date:** [November 19, 2024, 7:25pm UTC](https://scilab.discourse.group/t/modelica-compiler-error/692/15 "2024-11-19T19:25:25Z")
@vincent.couvert , wow I fixed it. Now modelicat is working!!! All that xcos modelica and Electrica demos! Amazing 😄 Some libs were missing I guess. So I download all runtimes at once and have installed it. From here: [Download – All in One Runtimes](https://www.allinoneruntimes.org/all-in-one-runtimes-download/#google_vignette)