Executable made with pyInstaller/UPX experiences DLL load failed: The parameter is incorrect

Question

Executable made with pyInstaller / UPX in virtual environment throws an error

DLL load failed: The parameter is incorrect. while parameter is correct...

I've made python Executable withoutpyInstaller UPX Its about 250MB & Its working Fine.

To reduce size I've created another python Executable (Contains Same Code) Using pyInstaller UPX and its gives me an error refer Error_img.

Code Contains libraries like Pandas,Numpy,Openpyxl

The error is showing at line 8 where I've defined Pandas library

Answer 1

I came up with the solution and It's working perfectly Fine... Need to add Pandas and Numpy Manually using pyinstaller --add-data option

pyinstaller --add-data C:\ve\mypython\Lib\site-packages\pandas;pandas --add-data C:\ve\mypython\Lib\site-packages\numpy;numpy --icon=icon_file.ico --version-file version.txt --noconsole --upx-dir=C:\upx --upx-exclude vcruntime140.dll --upx-exclude ucrtbase.dll --onefile Foo.py

After creating Executable the size of an EXE is 170MB.