LoadLibrary failed with Error 87: Falscher Parameter

Dorian67 · 10-04-2019, 12:14 PM

Hallo,

habe gerade die Version 4.0 installiert und erhalte beim Start von Calibre den Fehler:

LoadLinrary failed with Error 87: Falscher Parameter

Jemand eine Idee, wie ich Calibre wieder zum Laufen bringe?

Gruß

Dorian

theducks · 10-04-2019, 12:16 PM

Quote:

Originally Posted by Dorian67

Hallo,

habe gerade die Version 4.0 installiert und erhalte beim Start von Calibre den Fehler:

LoadLinrary failed with Error 87: Falscher Parameter

Jemand eine Idee, wie ich Calibre wieder zum Laufen bringe?

Gruß

Dorian

Is that a typo (red above) in the code or the post?

kovidgoyal · 10-04-2019, 12:28 PM

In a command prompt try running

calibre-debug -g

and the post the output

Dorian67 · 10-04-2019, 02:39 PM

@theducks yes a typo: Wright message: LoadLibrary with error 87: Falscher Parameter

@kovidgoyal:

C:\Program Files\Calibre2>calibre-debug -g
calibre 4.0 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.18362-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: de
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (1, 20, 0) && Package KFX (from KFX Input) (1, 20, 0) && KFX metadata reader (from KFX Input) (1, 20, 0) && KFX Input (1, 20, 0) && User Category (1, 5, 3) && Find Duplicates (1, 6, 3) && Quality Check (1, 9, 11) && Count Pages (1, 8, 2)
Turning on automatic hidpi scaling

Dorian67 · 10-04-2019, 04:06 PM

Quote:

Originally Posted by Dorian67

@theducks yes a typo: Wright message: LoadLibrary with error 87: Falscher Parameter

@kovidgoyal:

C:\Program Files\Calibre2>calibre-debug -g
calibre 4.0 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.18362-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: de
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (1, 20, 0) && Package KFX (from KFX Input) (1, 20, 0) && KFX metadata reader (from KFX Input) (1, 20, 0) && KFX Input (1, 20, 0) && User Category (1, 5, 3) && Find Duplicates (1, 6, 3) && Quality Check (1, 9, 11) && Count Pages (1, 8, 2)
Turning on automatic hidpi scaling

Then the message appears ....

DNSB · 10-04-2019, 11:40 PM

Quote:

Originally Posted by Dorian67

@theducks yes a typo: Wright message: LoadLibrary with error 87: Falscher Parameter

Spoiler:

From looking at a debug output on my computer, the next section should be similar to the below:

Code:

Turning off automatic hidpi scaling
devicePixelRatio: 1.0
logicalDpi: 120.0 x 120.0
physicalDpi: 141.76744186 x 141.402061856

Which makes me wonder about your video driver when attempting to fetch windows.devicePixelRatio. The last time I ran into a similar problem, I needed a video driver update to correct it.

kovidgoyal · 10-04-2019, 11:55 PM

This is basically some dll load failing, its hard to know which, since calibre uses lots of third party components, all of which load lots of DLLs. But certainly updating video drivers can never hurt. You can also try using process monitor it might tell you which dll is failing to load.

Dorian67 · 10-05-2019, 12:19 PM

Ok. I found the problem. I removed the graficcard in Deive Manager and started windows again. It installs "standard"-driver and calibre works again.

kovidgoyal · 10-05-2019, 09:01 PM

Glad you figured it out

licinio · 11-24-2019, 12:37 PM

Quote:

Originally Posted by kovidgoyal

In a command prompt try running

calibre-debug -g

and the post the output

C:\Users\Locati>calibre-debug -g
calibre 4.3 embedded-python: True is64bit: False
Windows-10-10.0.18362-SP0 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: None
Turning on automatic hidpi scaling

DNSB · 11-25-2019, 12:05 AM

Quote:

Originally Posted by licinio

Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: None
Turning on automatic hidpi scaling

You might want to check the post #8 in this thread where Dorian67 uninstalled his video card. After a restart (I'm going to assume that he checked the delete the driver software box before clicking on the Uninstall button), it should reinstall the video card with the Microsoft driver. If calibre now works, you can either stay with this setup or get serious about checking for a new video driver.

See attached image for the Uninstall box from Device Manager.

tedwinters · 12-30-2019, 01:17 AM

This fix also works--basically turning off switchable dynamic graphics

https://m.youtube.com/watch?v=wHsLWvwSfgo

adrian142 · 10-08-2020, 07:16 AM

I have this error, too. Here is the output from cmd:
C:\Users\User>calibre-debug -g
calibre 5.0.1 embedded-python: True is64bit: False
Windows-10-10.0.18362-SP0 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '10', '10.0.18362')
Python 3.8.5
Windows: ('10', '10.0.18362', 'SP0', 'Multiprocessor Free')
Interface language: de
Successfully initialized third party plugins: Extract ISBN (1, 4, 4) && Zotero Metadata Importer (1, 0, 35)
Turning on automatic hidpi scaling

DNSB · 10-08-2020, 12:06 PM

Quote:

Originally Posted by adrian142

I have this error, too. Here is the output from cmd:
C:\Users\User>calibre-debug -g
calibre 5.0.1 embedded-python: True is64bit: False
Windows-10-10.0.18362-SP0 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '10', '10.0.18362')
Python 3.8.5
Windows: ('10', '10.0.18362', 'SP0', 'Multiprocessor Free')
Interface language: de
Successfully initialized third party plugins: Extract ISBN (1, 4, 4) && Zotero Metadata Importer (1, 0, 35)
Turning on automatic hidpi scaling

Have you tried updating your video driver? Updating calibre to v5.2? And perhaps, installing the 64 bit version of calibre to match your 64 bit version of Windows. Also, given that you are running Windows 10 1903, you might want to look at running Windows Update and updating your version.

adrian142 · 10-10-2020, 01:15 AM

Thx for the tipps. I have some questions on these:

1) I am just downloading version 5.2 - but I cannot find two versions (a32-bit and a 64-bit version of Calibre at the download location). And even in the installer I do not see this 64-bit option.

2) I have the latest of my video drivers installed on this new machin. But I try to start Calibre via RemoteDesktop. Using RD was working on my old machine but here I get the error.
Wehen I am sitting at the new pc, not using Remote Desktop, V´Calibre starts correctly.

10-04-2019, 12:14 PM	#1
Dorian67 Member Posts: 10 Karma: 10 Join Date: Oct 2019 Device: Amazon Kindle	LoadLibrary failed with Error 87: Falscher Parameter Hallo, habe gerade die Version 4.0 installiert und erhalte beim Start von Calibre den Fehler: LoadLinrary failed with Error 87: Falscher Parameter Jemand eine Idee, wie ich Calibre wieder zum Laufen bringe? Gruß Dorian

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10-04-2019, 12:28 PM	#3
kovidgoyal creator of calibre Posts: 45,345 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	In a command prompt try running calibre-debug -g and the post the output

10-04-2019, 02:39 PM	#4
Dorian67 Member Posts: 10 Karma: 10 Join Date: Oct 2019 Device: Amazon Kindle	@theducks yes a typo: Wright message: LoadLibrary with error 87: Falscher Parameter @kovidgoyal: C:\Program Files\Calibre2>calibre-debug -g calibre 4.0 [64bit] embedded-python: True is64bit: True Windows-10-10.0.18362-SP0 Windows ('64bit', 'WindowsPE') ('Windows', '10', '10.0.18362') Python 2.7.16+ Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free') Interface language: de Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (1, 20, 0) && Package KFX (from KFX Input) (1, 20, 0) && KFX metadata reader (from KFX Input) (1, 20, 0) && KFX Input (1, 20, 0) && User Category (1, 5, 3) && Find Duplicates (1, 6, 3) && Quality Check (1, 9, 11) && Count Pages (1, 8, 2) Turning on automatic hidpi scaling

10-04-2019, 11:55 PM	#7
kovidgoyal creator of calibre Posts: 45,345 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	This is basically some dll load failing, its hard to know which, since calibre uses lots of third party components, all of which load lots of DLLs. But certainly updating video drivers can never hurt. You can also try using process monitor it might tell you which dll is failing to load.

10-05-2019, 12:19 PM	#8
Dorian67 Member Posts: 10 Karma: 10 Join Date: Oct 2019 Device: Amazon Kindle	Ok. I found the problem. I removed the graficcard in Deive Manager and started windows again. It installs "standard"-driver and calibre works again.

10-05-2019, 09:01 PM	#9
kovidgoyal creator of calibre Posts: 45,345 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Glad you figured it out

12-30-2019, 01:17 AM	#12
tedwinters Member Posts: 11 Karma: 14 Join Date: Feb 2010 Device: none	This fix also works--basically turning off switchable dynamic graphics https://m.youtube.com/watch?v=wHsLWvwSfgo

10-08-2020, 07:16 AM	#13
adrian142 Member Posts: 20 Karma: 10 Join Date: Aug 2010 Device: Kindle 3	I have this error, too. Here is the output from cmd: C:\Users\User>calibre-debug -g calibre 5.0.1 embedded-python: True is64bit: False Windows-10-10.0.18362-SP0 Windows ('32bit', 'WindowsPE') 32bit process running on 64bit windows ('Windows', '10', '10.0.18362') Python 3.8.5 Windows: ('10', '10.0.18362', 'SP0', 'Multiprocessor Free') Interface language: de Successfully initialized third party plugins: Extract ISBN (1, 4, 4) && Zotero Metadata Importer (1, 0, 35) Turning on automatic hidpi scaling

10-10-2020, 01:15 AM	#15
adrian142 Member Posts: 20 Karma: 10 Join Date: Aug 2010 Device: Kindle 3	Thx for the tipps. I have some questions on these: 1) I am just downloading version 5.2 - but I cannot find two versions (a32-bit and a 64-bit version of Calibre at the download location). And even in the installer I do not see this 64-bit option. 2) I have the latest of my video drivers installed on this new machin. But I try to start Calibre via RemoteDesktop. Using RD was working on my old machine but here I get the error. Wehen I am sitting at the new pc, not using Remote Desktop, V´Calibre starts correctly.

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