Question: I would like to ask you for help with creation of .exe file from python script where I use customtkinter, iconipy libraries.  pyinstaller: https://pyinstaller.org/en/stable iconimy: https://iconipy.digidigital.de/iconipy.html  After creation of .exe file I finished with this error:  My python code: from PIL import Image from customtkinter import CTk, CTkFrame, CTkImage, CTkButton from iconipy import IconFactory def Create_Icon(Icon_Set: str, Icon_Name: str, Icon_Size: str, Theme_index: int) -> Image: Icon_Fact = IconFactory( icon_set = Icon_Set, icon_size = 40, font_size = 30, font_color = "#FFFFFF", outline_width = 0, outline_color = None, background_color = None, background_radius = 0) Icon_PIL = Icon_Fact.asPil(Icon_Name) return Icon_PIL def Get_CTk_Icon(Icon_Set: str, Icon_Name: str, Icon_Size: str) -> CTkImage: Picture = CTkImage( light_image = Create_Icon(Icon_Set=Icon_Set, Icon_Name=Icon_Name, Icon_Size=Icon_Size, Theme_index=0), dark_image =Create_Icon(Icon_Set=Icon_Set, Icon_Name=Icon_Name, Icon_Size=Icon_Size, Theme_index=1), size = (40, 40)) return Picture def Get_Button_Icon(Frame: CTk|CTkFrame, Icon_Set: str, Icon_Name: str, Icon_Size: str, Button_Size: str) -> CTkFrame: Frame_Button = CTkButton( master = Frame, width = 40, height = 40, corner_radius = 0, border_width = 0, bg_color = "transparent", fg_color = "transparent", hover = False, anchor = "center", text = "") CTK_Image = Get_CTk_Icon(Icon_Set=Icon_Set, Icon_Name=Icon_Name, Icon_Size=Icon_Size) Frame_Button.configure(image=CTK_Image, text="") return Frame_Button window = CTk() Icon_Theme = Get_Button_Icon(Frame=window, Icon_Set="lucide", Icon_Name="sun-moon", Icon_Size="Header", Button_Size="Picture_Theme") Icon_Theme.configure(text="") Icon_Theme.pack(side="top", fill="none", expand=False, padx=5, pady=5) # run window.mainloop()  I use anaconda for virtual environment where I have only: # environment.yml name: ENV-Iconipy_Pyinstaller channels: - defaults - https://repo.anaconda.com/pkgs/main - https://repo.anaconda.com/pkgs/msys2 - https://repo.anaconda.com/pkgs/r dependencies: - bzip2=1.0.8=h2bbff1b_6 - ca-certificates=2024.12.31=haa95532_0 - expat=2.6.4=h8ddb27b_0 - libffi=3.4.4=hd77b12b_1 - libmpdec=4.0.0=h827c3e9_0 - openssl=3.0.15=h827c3e9_0 - pip=24.2=py313haa95532_0 - python=3.13.2=hadb2040_100_cp313 - python_abi=3.13=0_cp313 - setuptools=75.8.0=py313haa95532_0 - sqlite=3.45.3=h2bbff1b_0 - tk=8.6.14=h0416ee5_0 - tzdata=2025a=h04d1e81_0 - vc=14.42=haa95532_4 - vs2015_runtime=14.42.34433=he0abc0d_4 - wheel=0.44.0=py313haa95532_0 - xz=5.6.4=h4754444_1 - zlib=1.2.13=h8cc25b3_1 - pip: - altgraph==0.17.4 - customtkinter==5.2.2 - darkdetect==0.8.0 - iconipy==0.3.2 - packaging==24.2 - pefile==2023.2.7 - pillow==11.1.0 - pyinstaller==6.12.0 - pyinstaller-hooks-contrib==2025.1 - pywin32-ctypes==0.2.3 prefix: C:\Users\CZ011845\AppData\Local\miniconda3\envs\ENV-Iconipy_Pyinstaller  I installed only python by "conda install python" and then these 3 by pip:  pip install customtkinter pip install iconipy pip install pyinstaller  and I convers the main.py to .exe (in Anaconda):  run: conda activate ENV-Iconipy_Pyinstaller cd to correct project path run: pyinstaller --name Test --onedir --windowed main.py Add path and files into folder "_internal" (because without that there are issues)   Path: "_internal/iconipy/assets/lucide/" Empty file1: info.json Empty file2: version.txt  If I run code in terminal it is correct and I receive this window: 

Answer: Soved by adding iconipy "assets" folder into "_internal" as whole folder inside pyinstaller .spec file + add "iconipy" as hiddenimports: