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[Bug] Extract-files does not detect output parameter is missing #263

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opened 2026-01-29 15:14:35 +00:00 by claunia · 2 comments
claunia commented 2026-01-29 15:14:35 +00:00
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Originally created by @TheRogueArchivist on GitHub (May 1, 2019).

Prerequisites

  • Are you running the latest version?
  • Can you reproduce the problem in the debug version?

Check and fill as appropiate:

  • I was running DiscImageChef under Windows 10...
  • ...in 64-bit

Description

When I try to extract files from a floppy disk image, I get the error message "Error reading file: Value cannot be null. Parameter name: path". Happens with several different image files, including this one: https://drive.google.com/file/d/1TvO8rDuG1jA2lywdVoNc3ylQXbAKcdCK/view?usp=sharing

Exact command line used:

.\DiscImageChef.exe extract-files "Compaq Diagnostics.img" -d

Output of command execution with debug output enabled

PS C:\Users\silas\Documents\Alcohol 120%\000> .\DiscImageChef.exe extract-files "Compaq Diagnostics.img" -d
DiscImageChef 4.5.99.1693-00000000 built by DESKTOP-8B4K7NM in Debug
Copyright c 2011-2019 Natalia Portillo

DEBUG (Extract-Files command): --debug=True
DEBUG (Extract-Files command): --encoding=
DEBUG (Extract-Files command): --input=Compaq Diagnostics.img
DEBUG (Extract-Files command): --options=
DEBUG (Extract-Files command): --output=
DEBUG (Extract-Files command): --verbose=False
DEBUG (Extract-Files command): --xattrs=False
DEBUG (Extract-Files command): Parsed options:
DEBUG (Format detection): Trying plugin ACT Apricot Disk Image
DEBUG (Format detection): Trying plugin Alcohol 120% Media Descriptor Structure
DEBUG (Format detection): Trying plugin Anex86 Disk Image
DEBUG (Anex86 plugin): fdihdr.unknown = 1234189547
DEBUG (Anex86 plugin): fdihdr.hddtype = 538987842
DEBUG (Anex86 plugin): fdihdr.hdrSize = 8008501
DEBUG (Anex86 plugin): fdihdr.dskSize = 65794
DEBUG (Anex86 plugin): fdihdr.bps = 1073799170
DEBUG (Anex86 plugin): fdihdr.spt = 651275
DEBUG (Anex86 plugin): fdihdr.heads = 131090
DEBUG (Anex86 plugin): fdihdr.cylinders = 0
DEBUG (Format detection): Trying plugin Apple ][ Interleaved Disk Image
DEBUG (Format detection): Trying plugin Apple 2IMG
DEBUG (Format detection): Trying plugin Apple Disk Archival/Retrieval Tool
DEBUG (Format detection): Trying plugin Apple DiskCopy 4.2
DEBUG (Format detection): Trying plugin Apple New Disk Image Format
DEBUG (Format detection): Trying plugin Apple NIB
DEBUG (Format detection): Trying plugin Apple Universal Disk Image Format
DEBUG (Format detection): Trying plugin Basic Lisa Utility
DEBUG (Format detection): Trying plugin BlindWrite 4
DEBUG (Format detection): Trying plugin BlindWrite 5
DEBUG (Format detection): Trying plugin CDRDAO tocfile
DEBUG (Format detection): Trying plugin CDRWin cuesheet
DEBUG (Format detection): Trying plugin CisCopy Disk Image (DC-File)
DEBUG (Format detection): Trying plugin CloneCD
DEBUG (Format detection): Trying plugin CPCEMU Disk-File and Extended CPC Disk-File
DEBUG (CPCDSK plugin): header.magic = "?<?IBM  53z"
DEBUG (Format detection): Trying plugin d2f disk image
DEBUG (Format detection): Trying plugin D88 Disk Image
DEBUG (D88 plugin): d88hdr.name = "·?BM  53z"
DEBUG (D88 plugin): d88hdr.reserved is empty? = False
DEBUG (D88 plugin): d88hdr.write_protect = 0x02
DEBUG (D88 plugin): d88hdr.disk_type = D2 (0)
DEBUG (D88 plugin): d88hdr.disk_size = 0
DEBUG (Format detection): Trying plugin Digital Research DiskCopy
DEBUG (Format detection): Trying plugin DIM Disk Image
DEBUG (Format detection): Trying plugin DiscFerret
DEBUG (Format detection): Trying plugin DiscImageChef format
DEBUG (Format detection): Trying plugin DiscJuggler
DEBUG (DiscJuggler plugin): dscLen = -151587082
DEBUG (Format detection): Trying plugin Dreamcast GDI image
DEBUG (Format detection): Trying plugin Dunfield's IMD
DEBUG (Format detection): Trying plugin HD-Copy disk image
DEBUG (Format detection): Trying plugin IBM SaveDskF
DEBUG (Format detection): Trying plugin KryoFlux STREAM
DEBUG (Format detection): Trying plugin MAME Compressed Hunks of Data
DEBUG (Format detection): Trying plugin MAXI Disk image
DEBUG (MAXI Disk plugin): tmp_header.unknown = 235
DEBUG (MAXI Disk plugin): tmp_header.diskType = 60
DEBUG (MAXI Disk plugin): tmp_header.heads = 144
DEBUG (MAXI Disk plugin): tmp_header.cylinders = 73
DEBUG (MAXI Disk plugin): tmp_header.bytesPerSector = 66
DEBUG (MAXI Disk plugin): tmp_header.sectorsPerTrack = 77
DEBUG (MAXI Disk plugin): tmp_header.unknown2 = 32
DEBUG (MAXI Disk plugin): tmp_header.unknown3 = 32
DEBUG (Format detection): Trying plugin Microsoft VHDX
DEBUG (Format detection): Trying plugin Nero Burning ROM image
DEBUG (Nero plugin): imageStream.Length = 1474560
DEBUG (Nero plugin): footerV1.ChunkID = 0xF6F6F6F6
DEBUG (Nero plugin): footerV1.FirstChunkOffset = 4143380214
DEBUG (Nero plugin): footerV2.ChunkID = 0xF6F6F6F6
DEBUG (Nero plugin): footerV2.FirstChunkOffset = 17795682518166861558
DEBUG (Format detection): Trying plugin Parallels disk image
DEBUG (Format detection): Trying plugin PartClone disk image
DEBUG (Format detection): Trying plugin Partimage disk image
DEBUG (Format detection): Trying plugin QEMU Copy-On-Write disk image
DEBUG (Format detection): Trying plugin QEMU Copy-On-Write disk image v2
DEBUG (QCOW plugin): qHdr.magic = 0xEB3C9049
DEBUG (QCOW plugin): qHdr.version = 1112350752
DEBUG (Format detection): Trying plugin QEMU Enhanced Disk image
DEBUG (Format detection): Trying plugin Ray Arachelian's Disk IMage
DEBUG (Ray Arachelian's Disk IMage plugin): header.signature = ?<?IBM  53z
DEBUG (Ray Arachelian's Disk IMage plugin): header.diskType = 22
DEBUG (Ray Arachelian's Disk IMage plugin): header.heads = 62
DEBUG (Ray Arachelian's Disk IMage plugin): header.cylinders = 83
DEBUG (Ray Arachelian's Disk IMage plugin): header.sectorsPerTrack = 191
DEBUG (Ray Arachelian's Disk IMage plugin): header.signature matches? = False
DEBUG (Format detection): Trying plugin RS-IDE Hard Disk Image
DEBUG (Format detection): Trying plugin Spectrum Floppy Disk Image
DEBUG (Format detection): Trying plugin SuperCardPro
DEBUG (Format detection): Trying plugin Sydex CopyQM
DEBUG (Format detection): Trying plugin Sydex TeleDisk
DEBUG (Format detection): Trying plugin T98 Hard Disk Image
DEBUG (Format detection): Trying plugin T98-Next NHD r0 Disk Image
DEBUG (Format detection): Trying plugin Virtual98 Disk Image
DEBUG (Format detection): Trying plugin VirtualBox Disk Image
DEBUG (Format detection): Trying plugin VirtualPC
DEBUG (Format detection): Trying plugin VMware disk image
DEBUG (Format detection): Trying plugin Raw Disk Image
Image format identified by Raw Disk Image.
Error reading file: Value cannot be null.
Parameter name: path
DEBUG (Extract-Files command):    at System.IO.Directory.CreateDirectory(String path)
   at DiscImageChef.Commands.ExtractFilesCommand.Invoke(IEnumerable`1 arguments)
Originally created by @TheRogueArchivist on GitHub (May 1, 2019). ### Prerequisites * [X] Are you running the latest version? * [X] Can you reproduce the problem in the debug version? ### Check and fill as appropiate: * [X] I was running DiscImageChef under Windows 10... * [X] ...in 64-bit ### Description When I try to extract files from a floppy disk image, I get the error message "Error reading file: Value cannot be null. Parameter name: path". Happens with several different image files, including this one: https://drive.google.com/file/d/1TvO8rDuG1jA2lywdVoNc3ylQXbAKcdCK/view?usp=sharing ### Exact command line used: `.\DiscImageChef.exe extract-files "Compaq Diagnostics.img" -d` ### Output of command execution with debug output enabled ``` PS C:\Users\silas\Documents\Alcohol 120%\000> .\DiscImageChef.exe extract-files "Compaq Diagnostics.img" -d DiscImageChef 4.5.99.1693-00000000 built by DESKTOP-8B4K7NM in Debug Copyright c 2011-2019 Natalia Portillo DEBUG (Extract-Files command): --debug=True DEBUG (Extract-Files command): --encoding= DEBUG (Extract-Files command): --input=Compaq Diagnostics.img DEBUG (Extract-Files command): --options= DEBUG (Extract-Files command): --output= DEBUG (Extract-Files command): --verbose=False DEBUG (Extract-Files command): --xattrs=False DEBUG (Extract-Files command): Parsed options: DEBUG (Format detection): Trying plugin ACT Apricot Disk Image DEBUG (Format detection): Trying plugin Alcohol 120% Media Descriptor Structure DEBUG (Format detection): Trying plugin Anex86 Disk Image DEBUG (Anex86 plugin): fdihdr.unknown = 1234189547 DEBUG (Anex86 plugin): fdihdr.hddtype = 538987842 DEBUG (Anex86 plugin): fdihdr.hdrSize = 8008501 DEBUG (Anex86 plugin): fdihdr.dskSize = 65794 DEBUG (Anex86 plugin): fdihdr.bps = 1073799170 DEBUG (Anex86 plugin): fdihdr.spt = 651275 DEBUG (Anex86 plugin): fdihdr.heads = 131090 DEBUG (Anex86 plugin): fdihdr.cylinders = 0 DEBUG (Format detection): Trying plugin Apple ][ Interleaved Disk Image DEBUG (Format detection): Trying plugin Apple 2IMG DEBUG (Format detection): Trying plugin Apple Disk Archival/Retrieval Tool DEBUG (Format detection): Trying plugin Apple DiskCopy 4.2 DEBUG (Format detection): Trying plugin Apple New Disk Image Format DEBUG (Format detection): Trying plugin Apple NIB DEBUG (Format detection): Trying plugin Apple Universal Disk Image Format DEBUG (Format detection): Trying plugin Basic Lisa Utility DEBUG (Format detection): Trying plugin BlindWrite 4 DEBUG (Format detection): Trying plugin BlindWrite 5 DEBUG (Format detection): Trying plugin CDRDAO tocfile DEBUG (Format detection): Trying plugin CDRWin cuesheet DEBUG (Format detection): Trying plugin CisCopy Disk Image (DC-File) DEBUG (Format detection): Trying plugin CloneCD DEBUG (Format detection): Trying plugin CPCEMU Disk-File and Extended CPC Disk-File DEBUG (CPCDSK plugin): header.magic = "?<?IBM 53z" DEBUG (Format detection): Trying plugin d2f disk image DEBUG (Format detection): Trying plugin D88 Disk Image DEBUG (D88 plugin): d88hdr.name = "·?BM 53z" DEBUG (D88 plugin): d88hdr.reserved is empty? = False DEBUG (D88 plugin): d88hdr.write_protect = 0x02 DEBUG (D88 plugin): d88hdr.disk_type = D2 (0) DEBUG (D88 plugin): d88hdr.disk_size = 0 DEBUG (Format detection): Trying plugin Digital Research DiskCopy DEBUG (Format detection): Trying plugin DIM Disk Image DEBUG (Format detection): Trying plugin DiscFerret DEBUG (Format detection): Trying plugin DiscImageChef format DEBUG (Format detection): Trying plugin DiscJuggler DEBUG (DiscJuggler plugin): dscLen = -151587082 DEBUG (Format detection): Trying plugin Dreamcast GDI image DEBUG (Format detection): Trying plugin Dunfield's IMD DEBUG (Format detection): Trying plugin HD-Copy disk image DEBUG (Format detection): Trying plugin IBM SaveDskF DEBUG (Format detection): Trying plugin KryoFlux STREAM DEBUG (Format detection): Trying plugin MAME Compressed Hunks of Data DEBUG (Format detection): Trying plugin MAXI Disk image DEBUG (MAXI Disk plugin): tmp_header.unknown = 235 DEBUG (MAXI Disk plugin): tmp_header.diskType = 60 DEBUG (MAXI Disk plugin): tmp_header.heads = 144 DEBUG (MAXI Disk plugin): tmp_header.cylinders = 73 DEBUG (MAXI Disk plugin): tmp_header.bytesPerSector = 66 DEBUG (MAXI Disk plugin): tmp_header.sectorsPerTrack = 77 DEBUG (MAXI Disk plugin): tmp_header.unknown2 = 32 DEBUG (MAXI Disk plugin): tmp_header.unknown3 = 32 DEBUG (Format detection): Trying plugin Microsoft VHDX DEBUG (Format detection): Trying plugin Nero Burning ROM image DEBUG (Nero plugin): imageStream.Length = 1474560 DEBUG (Nero plugin): footerV1.ChunkID = 0xF6F6F6F6 DEBUG (Nero plugin): footerV1.FirstChunkOffset = 4143380214 DEBUG (Nero plugin): footerV2.ChunkID = 0xF6F6F6F6 DEBUG (Nero plugin): footerV2.FirstChunkOffset = 17795682518166861558 DEBUG (Format detection): Trying plugin Parallels disk image DEBUG (Format detection): Trying plugin PartClone disk image DEBUG (Format detection): Trying plugin Partimage disk image DEBUG (Format detection): Trying plugin QEMU Copy-On-Write disk image DEBUG (Format detection): Trying plugin QEMU Copy-On-Write disk image v2 DEBUG (QCOW plugin): qHdr.magic = 0xEB3C9049 DEBUG (QCOW plugin): qHdr.version = 1112350752 DEBUG (Format detection): Trying plugin QEMU Enhanced Disk image DEBUG (Format detection): Trying plugin Ray Arachelian's Disk IMage DEBUG (Ray Arachelian's Disk IMage plugin): header.signature = ?<?IBM 53z DEBUG (Ray Arachelian's Disk IMage plugin): header.diskType = 22 DEBUG (Ray Arachelian's Disk IMage plugin): header.heads = 62 DEBUG (Ray Arachelian's Disk IMage plugin): header.cylinders = 83 DEBUG (Ray Arachelian's Disk IMage plugin): header.sectorsPerTrack = 191 DEBUG (Ray Arachelian's Disk IMage plugin): header.signature matches? = False DEBUG (Format detection): Trying plugin RS-IDE Hard Disk Image DEBUG (Format detection): Trying plugin Spectrum Floppy Disk Image DEBUG (Format detection): Trying plugin SuperCardPro DEBUG (Format detection): Trying plugin Sydex CopyQM DEBUG (Format detection): Trying plugin Sydex TeleDisk DEBUG (Format detection): Trying plugin T98 Hard Disk Image DEBUG (Format detection): Trying plugin T98-Next NHD r0 Disk Image DEBUG (Format detection): Trying plugin Virtual98 Disk Image DEBUG (Format detection): Trying plugin VirtualBox Disk Image DEBUG (Format detection): Trying plugin VirtualPC DEBUG (Format detection): Trying plugin VMware disk image DEBUG (Format detection): Trying plugin Raw Disk Image Image format identified by Raw Disk Image. Error reading file: Value cannot be null. Parameter name: path DEBUG (Extract-Files command): at System.IO.Directory.CreateDirectory(String path) at DiscImageChef.Commands.ExtractFilesCommand.Invoke(IEnumerable`1 arguments) ```
claunia added the bug label 2026-01-29 15:14:35 +00:00
claunia commented 2026-01-29 15:14:37 +00:00
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@darkstar commented on GitHub (Aug 4, 2019):

Try adding -o <output-path>

@darkstar commented on GitHub (Aug 4, 2019): Try adding `-o <output-path>`
claunia commented 2026-01-29 15:14:37 +00:00
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@claunia commented on GitHub (Aug 4, 2019):

Change title to reflect real bug.

@claunia commented on GitHub (Aug 4, 2019): Change title to reflect real bug.
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Reference: aaru-dps/Aaru-aaru-dps#263
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