I downloaded the latest release of UPX, extracted it into a folder on C:/UPX. This folder now contains both the .exe, and the extracted folder. Pyinstaller either does not recognise UPX at all, or it gives me:
84 INFO: PyInstaller: 4.0.dev0
84 INFO: Python: 3.7.6 (conda)
84 INFO: Platform: Windows-10-10.0.18362-SP0
Error running 'C:\UPX\upx -V': [WinError 5] Access is denied
Error: Executing command failed!
The code I used was:
pyinstaller --upx-dir C:\UPX --add-data img.png --onefile script.py
I am running it from Anaconda prompt and as administrator. When the UPX file was in the current directory where my script is, it was not recognising the upx at all.
I am following all the advice given online, but I have a feeling I am downloading/trying to use the wrong UPX file. I download from here: https://github.com/upx/upx/releases/tag/v3.96 the .zip for the upx-3.96 release. Both the .zip and the extracted folders I keep in this C:/UPX folder. What am I doing wrong?
I also had this issue.
I tried using the previous release https://github.com/upx/upx/releases/tag/v3.95 and this seemed to work.