Help with Nexus 6P bootloop: Couldn't parse partition size '0x' when trying to flash new image

I need help with my Nexus 6P. Because of a bootloop, I was trying to flash a new boot image. I went to the Google download page for factory images and tried using the "flash-all.bat" file. I don't know how to exactly explain this but, here is the full command prompt line from the flash-all batch file. Note: It also says my device is corrupt while trying to go into recovery mode. I don't know how to fix, please help :(

Sending 'bootloader' (3544 KB)                     OKAY [  0.136s]
Writing 'bootloader'                               OKAY [  0.215s]
Finished. Total time: 0.405s
Rebooting into bootloader                          OKAY [  0.108s]
Finished. Total time: 0.113s
Sending 'radio' (48728 KB)                         OKAY [  1.511s]
Writing 'radio'                                    OKAY [  2.174s]
Finished. Total time: 3.741s
Rebooting into bootloader                          OKAY [  0.007s]
Finished. Total time: 0.009s
--------------------------------------------
Bootloader Version...: angler-03.68
Baseband Version.....: angler-03.81
Serial Number........: 84B7N16109000032
--------------------------------------------
extracting android-info.txt (0 MB) to RAM...
Checking 'product'                                 OKAY [  0.018s]
Checking 'version-bootloader'                      OKAY [  0.018s]
Checking 'version-baseband'                        OKAY [  0.018s]
extracting boot.img (12 MB) to disk... took 0.033s
archive does not contain 'boot.sig'
fastboot: error: Couldn't parse partition size '0x'.
Press any key to exit...

Flashing vendor, system, and recovery individually works but boot doesn't. When flashing boot image on its own, it also says the same thing. ```C:\Users\zqk9\Desktop\platform-tools>fastboot flash boot boot.img fastboot: error: Couldn't parse partition size '0x'.