| Issue | Likely Cause | Potential Solution | | :--- | :--- | :--- | | No library found / Symbol not found in libraries | Missing .IDX file or files in wrong directory | Ensure both .LIB and .IDX are in the correct LIBRARY folder | | Place device shows only a box with '?' on pins | No package linked to the schematic symbol | Define or assign a PCB package to the part within Proteus | | Model not found / Simulation fails | Missing DLL file or path not set | Copy .DLL files to MODELS folder and verify simulation model path in component properties | | Arduino Library compile errors | Outdated or incorrect library version | Update the library via Library Manager. Use libraries like to fix specific hardware issues. Adjust timing delays in MCP2515.c |
Open your file explorer and navigate to the Proteus installation folder. mcp2515 proteus library