Noah 2000 Integration/Noah-mqtt

[drowsy silo]

I tried to implement my Noah2000 into homeassistant. The original Growatt App doenst give information about the battery. So I found this https://github.com/mtrossbach/noah-mqtt but when i try to install it always give me this error. (Screenshot)

While the supervisor log says the following:
ERROR: failed to build: failed to solve: base name ($BUILD_FROM) should not be blank

Can I do something here? Am i doing something wrong?
Even Gemini is no help

[cosmic dagger]

i had issues to get my noah 2000 going too. so i asked claude to help me out. this is what it came up with:
https://github.com/mvolli/ha-growatt-noah