B4R Question B4R - the directory name is invalid - tchart    Jan 9, 2020 Trying to get back into Arduino. I had this same Nodemcu working with B4R a while back but now after I compile Im getting this message and the device isnt connected.
Any idea? Ive checked the paths in "configure paths"
87301The directory name is invalid... B4R Question ESP32 Bluetooth - Brian Dean    Nov 24, 2025 occurred. The directory name is invalid I guess that this is some basic newbie oversight... forum post - the Arduino compiler will not tolerate spaces in file (or folder?) names. Checking..., but that will have to wait for tomorrow. And the B4RDev package name is still greyed out and... B4R Question Delete all files in folder - Mostez    Apr 7, 2019 DeleteFilesInFolder(FolderName As String) As String
If Not(SD.Exists(FolderName)) Then...)
Dim MaxF As Byte = 0
For Each f As File In SD.ListFiles(FolderName)
'Log... B4R Question directory error - Gerardo Tenreiro (first post)    Aug 11, 2023 Thanks Erel.
It was the first thing I tried to clean the project
the result is the same
An error has occurred.
The directory name is invalid
Any other possible solution?
Thank you... B4R Question p10 led panel library - thetrueman (first post)    Oct 13, 2025 Thanks candide for hint and I explain to clarify that I just unzipped the rDMD library and put it in additional library folder. DMD.h and DMD.cpp are already included in zip file which were copied with other files. I removed them as you advised and now the compilation completed and uploaded but could not run. There was an error in the end of logs... (Attached) ********************* PROGRAM STARTING **************** An error occurred. The directory name is invalid BTW my directory structure... B4R Tutorial [Tool]LCD Display Designer - rwblinn (first post)    May 17, 2022   (1 reaction) Reproduced the error using the same folder name containing the subfolder with the characters ...\!!!\...
There was no error after changing the "!!!" in the subfolder name to "test", i.e. C:\TEMP\...\test\...
So seems caused by the folder name containing the special characters !.... B4R Tutorial Provisioning: Start Access point, display it's Wifi credentials as a Wifi-QRCode (can be scanned by any phone) - KMatle    Feb 26, 2024   (5 reactions) you additional libs folder create a folder named "qrcode" (all lowercase) 5. copy the source folder "src" into the the "qrcode" folder. You don't need the other folders 6..." file to "qrcode2.h" What the app does: 1. Create an AccessPoint (AP-Name is ESP plus... C/C++ Question compilation issue with GSM_MQTT library on B4X - OK now - - candide (first post)    Jul 12, 2021 i can reproduce same issue when i have a mistake in directory name for this library. in your case directory should be rGSM_MQTT... B4R Question Errores de carga y comunicación con ESP Wroom 02 [SOLUCIONADO?] - inakigarm (first post)    Dec 16, 2019   (1 reaction) (Estás en el forum en inglés, será más fácil q te puedan responder si añades la descripción en inglés) 1) Hard resetting via RTS pin (not an error): https://electronicsinnovation.com/hard-resetting-via-rts-pin-fixed-explained/ 2) Folder name no valid: Can you post which is the folder name of the project?(https://www.b4x.com/android/forum/pages/results/?query=Folder+name&product=b4r) 3) will be better if you can attach the code as text (it can be tested by user's forum)... B4R Question Move the source code to D drive, when run get the error. - Erel (first post)    Jan 6, 2019   (1 reaction) Try to remove the space in the folder name.... Page: 1   2   3   4   5   6   7   |