fixed : “This block has encountered an error and cannot be previewed” error in WordPress Dashboard

Question :

My WordPress.com website has been shifted to the revamped version of the WordPress Dashboard, but now, when I am trying to re-edit posts from before September 2020, I can only see the post’s title in the edit page… the body text is replaced by an error message saying “This block has encountered an error and cannot be previewed”.

What can I do to fix this ?

Answer :

The underlying problem is not exactly clear, but the solution is rather simple :

  • make sure you are running the latest version of macOS, if not : upgrade to the latest version of macOS
  • make sure you are running the latest version of Safari (or the browser you are using), if not : upgade to the latest version
  • open Safari
  • goto “View” (in the top menu bar)
  • click on “Reload without Content Blockers” (from the pulldown menu)
    • Note : the regular โ€œReload Page (CMD+R)โ€ will NOT solve the problem !

That’s it !

enjoy ๐Ÿ˜‰

fixed : CanoScan 5600F driver for macOS Big_Sur

Question :

I have a Canon CanoScan 5600F scanner that worked great with my previous Mac, but now I have upgraded to a new Mac running macOS 11.0 Big_Sur.

I’ve looked on the Canon website and searched the internet, but there is no macOS 11.0 Big_Sur compatible driver available for this scanner.

Is there any way to use this CanoScan 5600F scanner in macOS 11.0 Big_Sur ?

 

Answer :

Yes, there is :

  • goto Canon’s US website : https://www.usa.canon.com
  • choose Support > Scanners > Film & Negative Scanner > CanoScan 5600F
  • or use this link : https://www.usa.canon.com/internet/portal/us/home/support/details/scanners/film-negative-scanner/canoscan-5600f/canoscan-5600f?subtab=downloads-drivers
  • there, choose the “Drivers & Downloads” tab
  • then, choose “macOS Mojave v10.14” as your operating system and “English” as your language
  • then, choose the “Drivers” tab
  • now, you will see 2 drivers listed :
    • > 5600F Scanner Driver Ver.14.11.5h (Mac) : msd_-mac_cs5600f-14_11_5h-ea8_2.dmg
      • > ICA Driver Ver.4.1.4a (Mac) : misd-mac-ijscanner2-4_1_4-ea21_3.dmg
  • download both of them
    • note that despite the fact that both are versions from 2018, these will still work with macOS 11.0 Big_Sur
  • goto your downloads folder
  • first, double-click on the file named msd_-mac_cs5600f-14_11_5h-ea8_2.dmg
  • this will mount the ScanGear_CanoScan 5600F_141105.pkg
  • again, click on that and version 14.11 of the ScanGear driver installer will open
  • now, follow the on-screen directions and the latest ScanGear driver will be installed
  • then, double-click on the file named misd-mac-ijscanner2-4_1_4-ea21_3.dmg
  • this will mount the Canon IJScanner2_040104.pkg
  • again, click on that and version 4.1.4 the IJScanner2 driver installer will open
  • now, follow the on-screen directions and the latest IJScanner2 driver will be installed
  • when done, goto System Preferences > Printers & Scanners
  • if the CanoScan 5600F is already listed on the left, click it
  • if not, click the +sign (plus-sign) to add the scanner first
  • when done, click the CanoScan 5600F in the list on the left
  • when the scanner details open on the right, click on the “Open Scanner”-button
  • now, the built-in macOS scanner-app will open and it will immediately do a preview scan of whatever is in the scanner

NOTE : you might run into a small problem every once in a while ; when the automatic scanning preview starts, you might get an error saying “Scanner reported an error – Cannot communicate with scanner for these reasons: – Scanner is turned off. – USB cable is disconnected. Please check and try again.” If so, just flip the scanner’s ON/OFF-switch in OFF-position manually and then back into ON-posistie. That should help in making the scanner preview work again.

enjoy ๐Ÿ˜‰

 

fixed : Canon scanner error -21345 on M1 Mac

Question :

I have have just upgraded to a new MacBook Air M1 2020 (with an Apple M1 processor) running macOS 11.0 Big_Sur. Now, I am trying to get my Canon PIXMA MG3250 All-in-one printer-scanner to work with it… but even though I can get the printer function to work, when I want it to scan I get an error…

Installing the Canon MG3250 through System Preferecens > Printers & Scanners > Add Printer was really simple as it was immediately seen through Bonjour. After installing, the MG3250’s icon is listed on the left, and when I click it, the window opens where I can choose either the “Print” or the “Scan” tab. After choosing the later, I get the “Open scanner”-button, and when I click that, the built-in macOS scanner-app opens the “Scanner” window… which gives this error : “Failed to open a connection to the device (-121345)” each time I try. I just can’t get it to work.

What is wrong ?

Answer :

When you get this error in this setup, you will probably have gotten an error saying “IJScanner3” also. Do this to fix it :

  • goto the Canon UK website : https://www.canon.co.uk
  • there, browse to the PIXMA MG3250’s Driver Support-page or go there directly using this link : https://www.canon.co.uk/support/consumer_products/products/fax__multifunctionals/inkjet/pixma_mg_series/pixma_mg3250.html?type=drivers&language=en&os=macos%2010.15%20(catalina)
    • Yes, that’s right, even though you are running macOS 11.0 Big_Sur and Canon tells you there is no driver for such an advanced OS, the macOS 10.15 Catalina driver still works
  • when you see the ICA Driver Ver. 4.0.0a (Mac) version listed, click the blue download button to download
  • in your downloads folder, you will now find a file called miss-mac-ijscanner3-4_0_0-ea19_2.dmg
  • click that file and it will mount an installer called Canon IJScanner3_040000.pkg
  • click that file and the 2020-version of the scanner driver will be installed
  • when done, make sure the System Preferences are closed
  • then open System Preferences > Printers & Scanners > MG3250 again and click the “Open Scanner”-button
  • now, the built-in scanner-app will open the Scanner-window again, but hits time without the error… so you are good to go !

That’s it !

enjoy ๐Ÿ˜‰

fixed : macOS Big_Sur installer hangs at 95%

Question :
I just downloaded the new macOS 11 Big_Sur on my Mac mini (2018) and started installing. But even though it said that installing would take about 28 minutes, it’s now about 40 minutes and the installer hangs, the screen is black with just the white Apple-logo and an installer bar that hangs at about 95%.

What can I do ?

 

Answer :

Just wait for about 15 to 20 minutes more, and it might just finish the last 5% of the installing process. If it doesn’t, press the power button on your Mac mini until it shuts down completely. Then, restart your Mac mini by pressing the power button again.

Note : this will probably work for any Mac, but it has been tested only on Mac mini (2018).

That’s it !

enjoy ๐Ÿ˜‰

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