Simulate does not work

[Kennewoll]

Current Behaviour

Can't simulate a sketch.
I tried simulating an example file from Fritzing (Arduino/Digital/Output/Blink), but when I click "Simulate" I get an error message.

The pop-up window displays the following error message:

⚠️ An error occurred when starting the simulation.

The debugging window displays the following error message:

Searching for ngspice in the following directories:
  /Applications/Fritzing.app/Contents/PlugIns
  /Applications/Fritzing.app/Contents/MacOS
Error loading ngspice shared library: Cannot load library /Applications/Fritzing.app/Contents/MacOS/libngspice.dylib: dlopen(/Applications/Fritzing.app/Contents/MacOS/libngspice.dylib, 0x0005): symbol not found in flat namespace '_HICUMload'

Screenshot:

Build:
Version 1.0.7
(CD-2576-0-394a8bb4 2026-04-14) Cocoa [Qt 6.8.3]

Operating System:
macOS: Sonoma 14.3.1

Steps to reproduce:

• Create/Open a sketch
• Click on "Simulate"

Expected Behaviour

Simulating the Sketch.

[KjellMorgenstern]

Are you using Intel or Apple Silicon?

[Kennewoll]

I use Intel.