selfmade kczip from foreign .bin file throws warnings

[Flittermelint]

Hi,

currently working on two projects building Powershell modules for communication with an ESP32 and ESP32S3 I stumbled upon this cool project.
I tried to find out how to build a kczip and could manage it, but loading throws a few warnings:

14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Extracting partition table from the archive...
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Partition table file found: partition-table.bin
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Parsing partition table...
14/04/2025 21:47:35 [Debug] ESP_Flasher.Services.PartitionTableExtractor: Parsing partition entry from raw data.
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Parsed partition entry: Type=1, Subtype=2, Address=9000, Size=5000, Name=nvs
14/04/2025 21:47:35 [Debug] ESP_Flasher.Services.PartitionTableExtractor: Parsing partition entry from raw data.
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Parsed partition entry: Type=1, Subtype=0, Address=E000, Size=2000, Name=otadata
14/04/2025 21:47:35 [Debug] ESP_Flasher.Services.PartitionTableExtractor: Parsing partition entry from raw data.
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Parsed partition entry: Type=0, Subtype=16, Address=10000, Size=140000, Name=app0
14/04/2025 21:47:35 [Debug] ESP_Flasher.Services.PartitionTableExtractor: Parsing partition entry from raw data.
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Parsed partition entry: Type=0, Subtype=17, Address=150000, Size=140000, Name=app1
14/04/2025 21:47:35 [Debug] ESP_Flasher.Services.PartitionTableExtractor: Parsing partition entry from raw data.
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Parsed partition entry: Type=1, Subtype=130, Address=290000, Size=160000, Name=spiffs
14/04/2025 21:47:35 [Debug] ESP_Flasher.Services.PartitionTableExtractor: Parsing partition entry from raw data.
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Parsed partition entry: Type=1, Subtype=3, Address=3F0000, Size=10000, Name=coredump
14/04/2025 21:47:35 [Warning] ESP_Flasher.Services.PartitionTableExtractor: Invalid partition entry detected, skipping...
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Reached end of partition table.
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.PartitionTableExtractor: Partition table parsing completed successfully.
14/04/2025 21:47:35 [Warning] ESP_Flasher.Services.AppHeaderExtractor: Invalid magic word found in app header.
14/04/2025 21:47:35 [Warning] ESP_Flasher.Services.AppHeaderExtractor: Invalid magic byte found in app header.
14/04/2025 21:47:35 [Warning] ESP_Flasher.Services.AppHeaderExtractor: Invalid magic byte found in app header.
14/04/2025 21:47:35 [Information] ESP_Flasher.Services.AppHeaderExtractor: App header found in firmware.bin

Debugging led me to the following values

PartitionTableExtractor.cs line 80
buffer =
0xeb,0xeb,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0x97,0x2d,0xae,0x2f,0xf8,0x72,0xa0,0x14,0x2d,0x60,0xba,0xd1,0x24,0xc0,0x66,0x6b

AppHeaderExtractor.cs line 91 > header.MagicWord = 4294967295 (0xFFFFFFFF)
AppHeaderExtractor.cs line 64 > header.Magic = 170 (0xAA)
AppHeaderExtractor.cs line 64 > header.Magic = 1 (0x01)

I'm unsure if I should try to flash the .bin file anyway, but I want to avoid bricking the device ;-)

Any help is greatly appreciated. And if I can help with further debugging, please let me know...

[vanBassum]

If i remember correctly it throws warnings because it tries to find the partition with the app to extracht information. You can try to flash it anyway and see what happens