Error while installing message has recently been popping up on my screen.

Doberman112155 Said:

"Error while installing message has recently been popping up on my screen.: The message says: "Expecting value: line 1 column 1 (char 0)". Anyone know what this is?"

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Three Thoughts to Note:

A. Corrupt Installer:

The installation file is corrupt. So, redownload it.

B. Redownload it:

If a redownload is of no success, try using another computer:

• eMail it to yourself
• upload it to cloud
• use a USB Flash Drive

C. Contact the Developer:

As a last resort, contact the Developer, informing them of this corrupt file, requesting that they fix it, and that they provide you with the file that you need.

Doberman112155 Said:

"Thank you for your quick response. I haven't been trying to download anything, if it is a corrupt Mac installer can you advise

how to acquire for re-installation? Thank you again."

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You are welcome.

Please Clarify:

What are you trying to re-insall? Is the the macOS itself?

There are Two Important Steps:

Backup then Reinstall

A. Backing Up the Mac: Start by creating a Time Machine backup of your Mac, so that you can have something to restore your Mac from, should anything go wrong with the reinstall. Go Here: Back up your Mac with Time Machine - Apple Support. If you have a backup, then restore form that.

B. Use Internet Recovery Mode:

Go Here: About macOS Recovery - Apple Support. It will boot off of Apple’s servers.

• Key Combonations:

Hold Down one of these, while you hear the boot up chime:

— [Option + Command + R]

— [Shift + Option + Command + R]

C. Use Ethernet:

For a more trustworthy install, use Ethernet, over WiFi. It would be hardwired into your modem/router.

Doberman112155 Said:

"Error while installing message has recently been popping up on my screen.: mine is doing the exact same thing i am not downloading anything and its coming up and like a lot of them> several open windows stacked in succession one to another..... please let me know if you have any idea how to find out what this is? thanks"

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See this Post's Answer: Message "Error while installing" - Apple Community

The free MalwareBytes may take care of it...

https://www.malwarebytes.com/mac/

Or...

Safe Boot, (holding Shift key down at startup), does the problem occur in Safe Mode? Could take 10 minutes.

Safe mode attempts to repair Disks & clears lots of caches & loads safe Drivers, & prevents loading of 3rd party extensions, so if Safe Mode works try again in regular boot.

EtreCheck is a FREE simple little diagnostic tool to display the important details of your system configuration and allow you to copy that information to the Clipboard. It is meant to be used with Apple Support Communities to help people help you with your Mac. It will not display any personal info.

https://www.etrecheck.com/

Pastebin is a good place to paste the whole report if you capture the URL while there…

https://pastebin.com/

Whew, they've changed pastebin & made it harder, but after pasting in, click Create new paste button, then Embed button, then copy the URL...

<script src="https://pastebin.com/embed_js/KuvnghqA"></script>

The important part of the above is...

https://pastebin.com/embed_js/KuvnghqA

Workable but harder for me to work with...the Note tool on the bottom of this editor's toolbar, as shown in the image, to copy and paste the output from EtreCheck. In a Reply before you click post, look for this to add longer texts...

mine is doing the exact same thing

i am not downloading anything and its coming up and like a lot of them>

several open windows stacked in succession one to another.....

please let me know if you have any idea how to find out what this is? thanks