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Error message: PICO Compiler Toolchain is not installed.
Posted: Sat Sep 13, 2025 12:09 pm
by HansJuergenHalder
Hello,
When I try to create a new Flowcode program for the RP 2040, I get the following error message:
PICO Compiler Toolchain is not installed.
1. I can work with pico-sdk in VS Code.
2. Flowcode Toolchain is installed.
3. The folder for pico-sdk is entered in the global settings.
Re: PICO Compiler Toolchain is not installed.
Posted: Sat Sep 13, 2025 1:04 pm
by chipfryer27
Hi
This link details installation of toolchains
https://www.flowcode.co.uk/wiki/index.p ... Toolchains
At the bottom you will see further links to install ESP and Pico toolchains.
It is very important that you follow the guides exactly as documented. If you change directories or install different versions from the documentation then you will most likely face issues.
Once installed, remember to set your Com Port under Project Options too, so FC knows which PC port you are using.
Hope this helps.
Re: PICO Compiler Toolchain is not installed.
Posted: Sat Sep 13, 2025 2:31 pm
by medelec35
Hello.
The Toolchain is not installed is caused by not adding the correct path within File > Global Options ... > Location tab
Check the path for PICO is correct.
Re: PICO Compiler Toolchain is not installed.
Posted: Sat Sep 13, 2025 4:51 pm
by HansJuergenHalder
Hello,
I installed the missing tools according to these instructions
https://www.flowcode.co.uk/wiki/index.p ... Toolchains
The path was automatically added by Flowcode
RPI Toolchain is installed under ...\pico_sdk
Re: PICO Compiler Toolchain is not installed.
Posted: Sat Sep 13, 2025 5:38 pm
by HansJuergenHalder
Additional information
When starting Flowcode, I receive the additional error message
“Definition file Free Target ... Raspberry.Pi_Pico.FCD” is missing.
Re: Error message: PICO Compiler Toolchain is not installed.
Posted: Wed Sep 17, 2025 4:03 pm
by medelec35
Can you post your fcfx and msg.txt project files and I will investigate the issue you have.
Re: Error message: PICO Compiler Toolchain is not installed.
Posted: Thu Sep 18, 2025 1:52 pm
by HansJuergenHalder
Hello,
Please find the files attached.
Re: Error message: PICO Compiler Toolchain is not installed.
Posted: Thu Sep 18, 2025 2:20 pm
by chipfryer27
Hi
It compiles OK for me.
I suspect something wrong with your installation.
I did notice though that your chart won't actually do much if it were to run.
You:-
Output 0 on GPO0
Wait 1mS
Output 0 on GPO0
Wait 1mS
End
Whilst the above would run, it wouldn't actually do much that you could detect.
Regards
Re: Error message: PICO Compiler Toolchain is not installed.
Posted: Thu Sep 18, 2025 2:24 pm
by chipfryer27
Hi
Matrix would be better able to assist with your error but perhaps look in
C:\ProgramData\MatrixTSL\FlowcodeV10\FCD\PICO to see if you have the folder and files?
Regards
Re: Error message: PICO Compiler Toolchain is not installed.
Posted: Thu Sep 18, 2025 2:56 pm
by LeighM
Your attached msg.txt file seems to end abruptly.
Have you got generic file system issues on your PC?
Full hard drive?
As chipfryer27, please check files exist.