Error messages

Here you will find instructions for reading and handling error messages

Table of Contents

1. L'Math could not be opened because its developer cannot be verified (macOS)

2. SyntaxError: Unexpected token '

3. AbortError: The user aborted a request

4. Errors in old versions

4.1. TypeError: ... is not iterable

4.2. TypeError: Cannot set properties of undefined (setting 'content')

5. General guidance

5.1. Opening the Data Folder

5.2. Opening the Update Folder

L'Math could not be opened because its developer cannot be verified (macOS)

This is due to the fact that L'Math's developer has not paid Apple for a development account, and therefore the application package is not "validated by Apple." You can, however, open L'Math to you without concern by following the installation instructions.

SyntaxError: Unexpected token '

The error may be due to a failed automatic update or a corrupt data folder file.

You can try the following:

  • Open the L'Math Data Folder (instructions at the end of the page) and remove it from there .json files are and all other directories except backup.
  • Open the L'Math Auto-Update Folder (instructions at the end of the page) and remove all files.

AbortError: The user aborted a request

This error message may occur if L'Math thinks the network connection is active, but fails to make requests to L'Math's server. The problem itself is not serious and may be due, for example, to a breakdown of the network connection or a problem with the server.

Errors in old versions

TypeError: ... is not iterable

This error may occur in the older versions of L'Math. Update L'Math. If updating is not possible, try deleting all files (except the backup folder) in L'Math's data folder (instructions at the end of the page).

TypeError: Cannot set properties of undefined (setting 'content')

This error may occur in the older versions of L'Math. Please update L'Math.

General guidance

These are general instructions referred to in the above description of errors.

Opening the Data Folder

If L'Math opens normally, you can open the data folder from the "Help" menu by clicking on "Technical..." and selecting "Open data folder." If this is not posibble, follow the instructions below.

Windows

  1. Open the file browser (Windows Explorer).
  2. Click the address bar on the top and type without the quotes 
    "%appdata%\LMath"
  3. Press Enter. Now you should get into L'Math's data folder.

MacOS

  1. Open Finder, the file browser.
  2. Select "Go" on the menu bar and select "Jump to/Go to location"
  3. Type this path (between quotes) to the address field: 
    "~\Library\Application Support\LMath"
  4. Press Enter. Now you should get into L'Math's data folder.

Linux

Depending on your system, the process may vary. Open your file browser and go to the path "~/.local/share/LMath" (~ is your home folder).

In many Linux environments, this can be done with terminal command xdg-open ~/.local/share/LMath.

Opening the Update Folder

Windows

  1. Open the file browser (Windows Explorer).
  2. Click the address bar on the top and type without the quotes 
    "%localappdata%\lmath-bootstrap"
  3. Press Enter. Now you should get into L'Math's autoupdate folder.

MacOS

  1. Open Finder, the file browser.
  2. Select "Go" on the menu bar and select "Jump to/Go to location"
  3. Type this path (between quotes) to the address field: 
    "~\Library\Application Support\lmath-bootstrap"
  4. Press Enter. Now you should get into L'Math's autoupdate folder.

Linux

Depending on your system, the process may vary. Open your file browser and go to the path" ~/.lmath/lmath-bootstrap" (~ is your home folder).

In many Linux environments, this can be done with terminal command xdg-open ~/.lmath/lmath-bootstrap.