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 “Reload Page (CMD+R)” will NOT solve the problem !

That’s it !

enjoy 😉

fixed : “Scanner reported an error” when starting scanner

Question :

My Canon CanoScan 5600F is scanning great, even after all those years. The only problem I’m encountering with my new Mac is that I get a “Scanner reported an error” message when I try to start it from the shortlink (alias) I have in my Dock.

The exact error message is : “Scanner reported an error Cannot communicate with scanner for these reasons: – Scanner is turned off. – USB cable is disconnected. Please check and try again.” But the USB cable is connected properly and the scanner is turned on, so that can’t be the problem.

What can I do to fix this ?

Answer :

This problem was introduced some years ago, possibly somewhere within the shift from OSX to macOS. It seems to have to to with the start-up sequence of macOS’s build-in scanning software or the scanner going into some sleep mode. The solution is simple, even though it is more of a workaround than an actual fix. So if you run into this problem, do this :

  • turn the scanner off using the ON/OFF-switch on the outside of the scanner (the physical hardware button)
  • then, click the blue OK-button in the “Scanner reported an error” window
  • then, close the “Scanner” window by clicking the red dot button top-left
  • then, open the Scanner software again…
  • now, turn the scanner back on using the ON/OFF-switch on the outside of the scanner (the physical hardware button)
  • now the scanner should load the scan preview automatically (as if you had clicked the Overview-button)
  • just make sure the scan area hasn’t been reset, so…
    • …either uncheck “Use Custom Size” and make sure “size” is “A4” (or anything suitable)
    • …or manually line out the scan area in the preview

That’s it !

enjoy 😉

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 😉

 

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 😉

fixed : delete an old TimeMachine-backup file from a Time Capsule

Question :

I’ve bought a new MacBook and I want to use my existing Time Capsule for it’s TimeMachine-backups, but it’s full. The backup-file, a .sparsebundle-file, from my previous MacBook that I am going to pass on to one of my children, is far too big.

I have installed my new MacBook from the old MacBook’s TimeMachine-backup, so I am not needing that backup again, but I want to make two new TimeMachine-backups as soon as possible : one for my new MacBook and one for the old MacBook right after my child starts using it.

But, I can’t seem to delete the old .sparsebundle-file from my Time Capsule completely… I’ve done several attempts, but I keep running into the same error message “The operation can’t be completed because some items had to be skipped. For each item, choose File > get Info, make sure “Locked” is deselected, and then check the Sharing & Permissions section. When you are sure the items are unlocked and not designated as Read Only or No Access, try again.”. On first sight, the .sparsebundle-file is still there. On further inspection, it turns out the the .sparsebundle-file has shrunken in size.

But… what can I do to completely delete the old .sparsebundle-file ?

 

Answer :

This problem can occur especially with bigger and older .sparsebundle-TimeMachine-backup-files. Note that the really new TimeMachine-backup-files have a .backupbundle-extension, not a .sparsebundle-extension, but there is hardly any difference

To be able to delete the old .sparsebundle-file, start by doing this :

  1. connect your new MacBook to the Time Capsule using a UTP/Ethernet-cable
    • make sure to shut off AirPort/WiFi on your MacBook :
      • in the top menu-bar, click on the AirPort/WiFi-icon (the piece of pie)
      • in the pulldown-menu, set the WiFi-slider to OFF
    • if you do not have an Ethernet-port or a USB-to-Ethernet-converter on your MacBook :
      • connect your MacBook to the Time Capsule using AirPort/WiFi
      • but make sure to disconnect all other AirPort/WiFi-connected devices
  2. Make sure that your Time Capsule has the latest firmware installed :
    • goto Applications > Utilities > AirPort Utility
    • open AirPort Utility
    • in the AirPortUtility-window, click on your Time Capsule’s picture
    • when prompted, enter the Time Capsule’s password
    • in the popup-window, at ‘version’ check if there is an update available
    • if so, click on the button to install it
    • if just the version number is shown, you already have the latest firmware installed, so you don’t need to do anything extra here
    • exit AirPort Utility
  3. Make sure that you have read&write-privileges on the .sparsbundle-file you want to remove :
    • right-click ( CTRL-click ) on the Finder-icon (blue-grey face icon) in the far left of the Dock
    • from the popup-list, select New Finder Window
    • scroll down to the “Locations” group in the menu list at the left and click on “Network”
    • in the window that opens, goto Network > Time Capsule
      • if you have multiple Time Capsule devices, make sure you select the Time Capsule that the .sparsebundle-file you want to delete is actually on
    • if it says “Not Connected” click the “Connect as”-button and typ the Time Capsule’s password
    • if it says “Connected”, you’re good
    • open the Data folder and right-click ( CTRL-click ) on the TimeMachine-backup-file you want to delete
    • from the popup-menu, choose Get Info
    • in the Get Info window that opens, choose these settings :
      • uncheck the check-box at “Locked” (so the file is unlocked, i.e. delete-able)
      • uncheck the check-box at “Hide extension” (so the .sparsebundle extension will be visible in the file name)
      • at “Sharing & Permissions” set Privilege for “everyone” to “Read & Write”
    • close the Get Info window

Having set the above, there are various options that might enable you to delete the old .sparsebundle-file (or .backupbundle-file). Your options are listed below, from simple to extreme. Read all of them before starting, and choose the option you want to try first. Any of these might be successful, and if the one you chose first doesn’t work, just try another one.

Option #1 : delete the .sparsebundle-file from within the Finder

  • goto Finder > New Finder Window
  • goto Locations > Network > Network > Time Capsule > Data
  • right-click ( CTRL-click ) on the .sparsebundle-file you want to delete
  • from the popup-list, select “Move to Bin”
  • wait for the “Move to Bin” action to complete
  • if it doesn’t end in an error, empty the bin/trash (and you’re done)
  • if this ends in an error, try any of the other options

Option #2a : additional TC reset

  • restart your Time Capsule by unplugging the power cable for 30 seconds
  • plug the power cable back into the Time Capsule
  • when the Time Capsule comes back online, follow the directions from Option #1

Option #2b : additional Mac reset

  • shut down your Time Capsule by unplugging the power cable (for 30 seconds)
  • shut down your MacBook by selecting Shut Down from the Apple-menu top-left
  • plug the power cable back into the Time Capsule
  • restart your MacBook by pressing the power button
  • when both your Time Capsule and your MacBook have restarted, follow the directions from Option #1

Option #2c : additionally disconnect other devices

  • shut down your Time Capsule by unplugging the power cable (for 30 seconds)
  • now, disconnect all UTP/Ethernet-cables leading to other devices than your MacBook (you can even disconnect the cable connected to your internet modem-router)
  • shut down your MacBook by selecting Shut Down from the Apple-menu top-left
  • plug the power cable back into the Time Capsule
  • restart your MacBook by pressing the power button
  • when both your Time Capsule and you MacBook have restarted, goto Applications > Utilities > AirPort Utility
  • in the AirPort Utility window, click on the picture of your Time Capsule, typ your password if needed and check which devices are connected
  • then, one-by-one go to each device listed and shut down it’s WiFi-connection
  • when done, close the AirPort Utility application and reopen it
  • again, in the AirPort Utility window, click on the picture of your Time Capsule, typ your password if needed and check which devices are connected
  • you should now see no devices listed at “wireless clients” (except for your MacBook if you aren’t able to connect it using a UTP/Ethernet-cable)
  • then, follow the directions from Option #1
  • NOTE : do not forget to plug all UTP/Ethernet-cables back into your Time Capsule and switch on WiFi on all devices that were previously connected

Option #3 : by backing up the Time Capsule content

  • NOTE : you will need a Mac-connectable external USB-harddisk for this ! (at least as many GBs as the internal HD of your Time Capsule, so 500G, 1TB, 2TB, 3TB of larger)
    • to check if the USB-harddisk is Mac-connectable, plug it into your Mac and if it pops up you’re okay
    • if it doesn’t show up, it’s a Windows NTFS-disk that needs to be reformatted to Mac Journailed format ( note that this erases all content, so ONLY reformat it if it’s an empty brand-new external harddisk ! )
  • NOTE : this method will work 99% of the time, but it will probably take (far) more time than any other method
  • start by connecting the external USB-harddisk to your Time Capsule’s USB-port
  • then, on your MacBook, goto Finder > New Finder Window
  • then, in the top menu-bar, goto Finder > Preferences
  • in the Finder Preferences window, click the Sidebar tab
  • in the list that shows up, make sure that “External disks” and “Connected servers” are checked
  • then close the Finder Preferences window
  • now select the New Finder Window you had just opened
  • goto Locations > Network > Network > Time Capsule
  • next to the Data-folder, there is now a new folder named after your externe USB-harddisk
    • for the following, assume that your extern USB-harddisk folder is simply called “usb-HD”
  • goto Locations > Network > Network > Time Capsule > usb-HD
    • if the “usb-HD” folder is completely empty, you’re okay
    • else, click on the “More” icon (the circle with 3 dot in it) and in the dropdown menu click “New Folder” and call it “TC-backup”
  • goto Locations > Network > Network > Time Capsule > Data
  • inside the Data-folder select all files (both backup-files and other files) that you DO NOT want to delete
  • drag&drop all the files into Locations > Network > Network > Time Capsule > usb-HD
    • it may take some time for all files to copy over, so let it run
    • if you run into an error, try copying over every file one-by-one
    • if you still run into an error, just try again
  • when all files are copied over, you can unplug the external USB-harddisk from your Time Capsule
    • as an extra safety precaution, you can unplug the power cable from your Time Capsule before you unplug the USB-cable and replug the power cable when the external USB-harddisk is disconnected
  • then goto Applications > Utilities > AirPort Utility
  • open AirPort Utility
  • in the AirPortUtility-window, click on your Time Capsule’s picture
  • when prompted, enter the Time Capsule’s password
  • in the popup-window, click the Edit-button
  • in the window that opens, select the “Disks”-tab
  • in the Disks window, click the “Erase Disk”-button
  • next, choose the level of security for the erase (“Quick Erase” should do fine, since you are going to use the disk for the same purpose immediately afterwards)
  • then click “Update” and the Time Capsule’s status light wil flash orange-yellow until the disk is erased and the Time Capsule is accessible again
  • then, exit AirPort Utility
  • goto Locations > Network > Network > Time Capsule > usb-HD or Locations > Network > Network > Time Capsule > usb-HD > TC-backup (depending on where you put your Time Capsule back-up files)
    • if you don’t see the “usb-HD” folder, make sure your external USB-harddisk is plugged back into your Time Capsule
  • now, select all files from the back-up folder (either “usb-HD” or the “TC-backup” folder within it)
  • drag&drop all the files into Locations > Network > Network > Time Capsule > Data
    • it may take some time for all files to copy over, so let it run
    • if you run into an error, try copying over every file one-by-one
    • if you still run into an error, just try again
  • when the copying is finished, you should now have your Time Capsule the way you wanted it : exactly the same (backup) files on it’s disk, but without the .sparsebundle(s) you don’t need anymore

Option #4 : manually deleting all files inside

  • goto Finder > New Finder Window
  • goto Locations > Network > Network > Time Capsule > Data
  • right-click ( CTRL-click ) on the .sparsebundle-file you want to delete
  • from the popup-list, select “Open Package Content”
  • in the Finder window that opens click on the “bands” folder
    • if the “bands” folder appears empty, just wait a few moments for its content to appear in the Finder window
  • SHIFT-click on the top file and scroll down to select multiple files, then press the Backspace-button on your keyboard to delete them
    • you are able to select and delete up to 8000 files per batch (according to user ‘cmaryg’)
    • if a batch refuses to delete at the first attempt, just try again – usually it will eventually be deleted anyway (according to user ‘cmaryg’)
    • if a batch refuses to delete after a few attempts, reduce the number of files in it by selecting less files at once and try deleting again
    • if you happen to run into a single file that refuses to delete, do this :
      • right-click ( CTRL-click ) on the file
      • from the popup-list, select “Get Info”
      • in the window that opens, make sure that there is no checkmark at “Locked”
      • then try deleting the file again
  • then repeat this for the next batch of files, until the “bands” folder is completely empty
  • if the “bands” file is completely empty, close the Finder window that displays the “bands” folder
  • then, goto Finder > New Finder Window
  • goto Locations > Network > Network > Time Capsule > Data
  • right-click ( CTRL-click ) on the .sparsebundle-file you want to delete
  • from the popup-list, select “Move to Bin”
  • if it doesn’t end in an error, empty the bin/trash (and you’re done)
  • if this ends in an error, you can still try Option #3, but probably this will help too :
    • goto Locations > Network > Network > Time Capsule > Data
    • right-click ( CTRL-click ) on the .sparsebundle-file you want to delete
    • from the popup-list, select “Open Package Content”
    • in the Finder window that opens, select the top folder and drag it to the bin (trash)
    • repeat this for all folders listed
    • then, select the top file and drag it to the bin (trash)
    • repeat this for all files
    • if you run into a file that refuses to delete, do this :
      • right-click ( CTRL-click ) on the file
      • from the popup-list, select “Get Info”
      • in the window that opens, make sure that there is no checkmark at “Locked”
      • then try deleting the file again

That should be it !

As mentioned before : the Option #3 method will work (nearly) always, but it’s time-consuming and you will need a lot of extra disk space for it (on an external harddisk).

enjoy 😉

 

fixed : “iPad could not be activated” error on old iPad with empty SIM-slot (or iPad showing “black screen with time only” error)

Question :

I have an old iPad that I want to give to my children, but when I switch it on, there’s only a black screen showing the current time (not sure if it’s actually the correct time).

I left the iPad alone for some time, and when I switched it on again, I get an “iPad could not be activated” error.

Now, whenever I switch on the iPad, I either get the “iPad could not be activated” error or I get the black screen displaying the time only… I can’t figure out a way to get anything els from it…

What can I do ?

 

Answer :

For some unknown reason this problem appears on old iPads with an empty SIM-card slot. To get your iPad working again, follow these steps :

  • make sure the iPad is charged at least 20%
  • take the SIM card tray (holder) out of the iPad
  • vacuum the SIM card slot using a vacuum cleaner
  • if you have one, put a SIM-card in the tray (even if it’s an old inactive SIM-card), if not leave the tray empty
  • put the SIM card tray back into the iPad
  • reset the iPad by pressing the Home-button and the ON/OFF-switch at the same time
  • press both buttons until the white Apple-logo appears
  • then release the ON/OFF-button, but keep pressing the Home-button
  • when you keep the Home-button pressed long enough, you will get a “connect to iTunes” message
  • when an error message (or anything else) appears, repeat the reset
  • plug your iPad’s USB-cable into a Mac (or PC) that has iTunes on it
    • a newer Mac with Apple Music app might also work, but iTunes will probably work easier since this is an old iPad…
    • if you don’t have a Mac, you can probably use a PC with iTunes for Windows also (this wasn’t tested though…)
  • in iTunes you will get a message that the software on the iPad needs to be updated, click OK to go ahead
  • make sure your Mac (or PC) is connected to the internet, so it can download the update
  • this will take quite a long time 
  • you will only see an “iPad recovery mode” screen in iTunes, with no indication of progress
  • on your iPad you will see the Apple logo and an empty progress bar
  • if you do not touch anything long enough, the progress bar will suddenly start moving after 10 or 15 minutes (maybe longer)
  • wait for the progress bar to complete and disappear 
  • then you will get an “entry code protection” error in iTunes
  • open your iPad with the screen unlock code
  • on the bottom of the “Choose a Wi-Fi Network” page that automatically opens, you will now see a “connect to iTunes” option, select that
  • if your iPad is recognized correctly now, you’re okay
  • else, redo the entire procedure and choose “Erase” instead of “Repair” (“Recover”)
    • note : if you need to choose “Erase” you will loose all content that was on the iPad (the only way to get your content back after that is to import it from your iCloud backup or iTunes backup – if you ever made one manually or automatically)
  • follow the instructions and you will also be guided through instructions import a backup (if you have made any previously)

That’s it !

enjoy 😉