Cannot start my Unreal Engine through epic store

Hi! Guys, don’t know if someone have the same situation as I but Here is the problem I encountered:
I build the entire unreal engine through the source code(C++) downloaded from Github, the build process is smooth and I can start my unreal engine through Visual studio and .exe file.
But the problem is When I try to download the assets or plugins on the epic marketplace, it always informs me that there is no unreal engine found on my computer, and there is not any version of unreal engine.
Is there anyone has the same problem? This problem really took me a long time to struggle.

Hey there @BaiLangAO! May we know your specs? Are there any errors when you attempt to launch? Checking in task manager, are there any processes for the engine? Have you tried reinstalling the engine itself?

Hi! sorry for the missing problem description. I have updated my question above.

Basically, I build up my unreal engine through the source code using Visual studio, but the epic launcher is having trougble finding my engine’s location. I want to install some plugins to my source code-built engine, but it still can’t find my desired engine even I download a different version of unreal engine through the epic.

Ahhh that makes sense, so the launcher itself will only detect binaries that it installed if I remember correctly. There is however a method of using marketplace plugins, but requires the binary versions to be installed first and then using those plugins. Let me know how it goes!