Chrome says my extension’s manifest file is missing or unreadable

Something that commonly happens is that the manifest file isn’t named properly. Double check the name (and extension) and be sure that it doesn’t end with .txt (for example).

In order to determine this, make sure you aren’t hiding file extensions:

  1. Open Windows Explorer
  2. Go to Folder and Search Options > View tab
  3. Uncheck Hide extensions for known file types

Also, note that the naming of the manifest file is, in fact, case sensitive, i.e. manifest.json != MANIFEST.JSON.

Related Posts:

  1. Does mobile Google Chrome support browser extensions?
  2. Chrome theme new tab background does not fill correctly
  3. What caused the “Unchecked runtime.lastError: The message port closed before a response was received.” warning?
  4. Getting “net::ERR_BLOCKED_BY_CLIENT” error on some AJAX calls
  5. Getting “net::ERR_BLOCKED_BY_CLIENT” error on some AJAX calls
  6. Manifest is not valid JSON. Line: 1, column: 1, Unexpected token
  7. Apps, Extensions and scripts cannot be added from this website
  8. Disable developer mode extensions pop up in Chrome
  9. Difference between Chrome Apps and Extensions
  10. enabling right click:
  11. Chrome hangs after certain amount of data transfered – waiting for available socket
  12. Chrome not Firefox are not dumping to SSLKEYLOGFILE variable
  13. When adding a JavaScript library, Chrome complains about a missing source map. Why?
  14. Chrome not Firefox are not dumping to SSLKEYLOGFILE variable
  15. Google Chrome forcing download of “f.txt” file
  16. Chrome sendrequest error: TypeError: Converting circular structure to JSON
  17. “Chrome extension throws CRX file Error “CRX_REQUIRD_PROOF_MISSING”
  18. Failed to load PDF document in Chrome
  19. What does ==$0 (double equals dollar zero) mean in Chrome Developer Tools?
  20. How to Fix ERR_HTTP2_INADEQUATE_TRANSPORT_SECURITY in IIS on Windows Server 2016
  21. Is there a Google Voice API?
  22. speedtest.net api
  23. This API project is not authorized to use this API. Please ensure that this API is activated in the APIs Console
  24. Where does Chrome keep the SQLite Database file it writes things like stored passwords to?
  25. Where does Chrome store cookies?
  26. ResizeObserver – loop limit exceeded
  27. View google chrome’s cached pictures [closed]
  28. How can I change the color of a Google Maps marker?
  29. Duplicate headers received from server
  30. How to fix “ERROR: Could not find method google() for arguments [] on repository container.” in android studio 3.5
  31. When running WebDriver with Chrome browser, getting message, “Only local connections are allowed” even though browser launches properly
  32. How to use jQuery in chrome extension?
  33. Using google API to tell how busy a place is
  34. How to make audio autoplay on chrome
  35. How to disable Google Chrome auto update?
  36. Force div to be topmost element of any and all webpages
  37. Chrome Push Notification: This site has been updated in the background
  38. Where is the new Emulation tab in Chromes console drawer?
  39. Google Spreadsheet adding tooltip
  40. Google Chrome Ignoring Hosts File
  41. Workaround for Your Flash settings will be kept until you quit Chrome
  42. Where to find extensions installed folder for Google Chrome on Mac?
  43. How can I force a hard reload in Chrome for Android
  44. Chrome’s fonts are too light to read
  45. Chrome: console.log, console.debug are not working

Leave a Comment

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)