Whenever I try to access the extension manager in the admin section it goes to the "Please Wait" message and then stays there indefinitely.

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There don't seem to be any errors in the developer console so I'm not sure what is happening here.

  • Have you enter valid Public & Private Keys? – Abdul Aug 28 '18 at 12:46
  • Yes. I've been using the extensions manager quite frequently until now. It's always been OK before this. – CJNotts Aug 28 '18 at 13:02
  • Hi @CJNotts, any errors if you right click > inspect on the console in the browser window? – YorkieMagento Aug 28 '18 at 15:28
  • Hi, sorry for the delay. No. None that I can see. – CJNotts Aug 29 '18 at 8:38

Reloaded a backup edition of my site and this now seems to be working. Seems to be down to an extension that I installed via composer which was not agreeing with the magento system.

After some additional research this issue could be caused by the repositories in the composer.json file. Removing all but the primary repository seems to fix the issue.

An example is given below.


"repositories": {
    "0": {
        "type": "composer",
            "url": "https://repo.magento.com/"
    "data-migration-tool": {
        "type": "git",
            "url": "https://github.com/magento/data-migration-tool"


"repositories": [
        "type": "composer",
        "url": "https://repo.magento.com/"

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