startup disk does not have enough space to be partitioned - Boot Camp

Well, I solved my problem. I had been trying to install a 128 GB partition for Windows. I tried a 124 GB one and the partitioning worked as expected. Weird!

Here it is:

dev_init:590: Using /private/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T/fsck_apfs.15237.1/apfs and /private/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T/fsck_apfs.15237.1/nx for device-io.

** Checking the container superblock.

** Checking the EFI jumpstart record.

** Checking the space manager.

** Checking the space manager free queue trees.

** Checking the object map.

** Checking volume.

** Checking the APFS volume superblock.

** The volume Macintosh HD was formatted by hfs_convert (748.1.46) and last modified by fsck_apfs (945.200.129).

** Checking the object map.

** Checking the snapshot metadata tree.

** Checking the snapshot metadata.

** Checking snapshot 1 of 4.

** Checking snapshot 2 of 4.

** Checking snapshot 3 of 4.

** Checking snapshot 4 of 4.

** Checking the extent ref tree.

** Checking the fsroot tree.

** Checking volume.

** Checking the APFS volume superblock.

** The volume Preboot was formatted by newfs_apfs (748.1.46) and last modified by apfs_kext (945.200.129).

** Checking the object map.

** Checking the snapshot metadata tree.

** Checking the snapshot metadata.

** Checking the extent ref tree.

** Checking the fsroot tree.

** Checking volume.

** Checking the APFS volume superblock.

** The volume Recovery was formatted by newfs_apfs (748.1.46) and last modified by apfs_kext (945.200.129).

** Checking the object map.

** Checking the snapshot metadata tree.

** Checking the snapshot metadata.

** Checking the extent ref tree.

** Checking the fsroot tree.

** Checking volume.

** Checking the APFS volume superblock.

** The volume VM was formatted by newfs_apfs (748.1.46) and last modified by apfs_kext (945.200.129).

** Checking the object map.

** Checking the snapshot metadata tree.

** Checking the snapshot metadata.

** Checking the extent ref tree.

** Checking the fsroot tree.

** Verifying allocated space.

warning: Overallocation Detected on Main device: (65293+1) bitmap address (81f9)

warning: Overallocation Detected on Main device: (85985+1) bitmap address (8186)

** Performing deferred repairs.

** The volume /dev/rdisk1 appears to be OK.

Here it is:

com.apple.TimeMachine.2018-10-17-100213

com.apple.TimeMachine.2018-10-17-150017

com.apple.TimeMachine.2018-10-17-160558

com.apple.TimeMachine.2018-10-17-171334

com.apple.TimeMachine.2018-10-17-181517

That did it! I no longer have the insufficient space warning in BCA, and I can proceed to install Windows.

Thanks!

Well, not really.

Now, I am stuck at "partitioning disk". BCA has sat there for hours. New issue, I know.