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I am trying to upload wsp solution to Office 365 in Solution Gallery but It's throwing error

Sorry, something went wrong

The request could not be completed because the specified solution was not found.

Same wsp solution is uploading and activating to another site collection and other tenant but not deploying in my root site collection in Office365.

EDIT: Even when I am uploading any file to Site Pages library or changing the welcome page of the site, this error occurs.

And even from SharePoint Designer I am unable to change my welcome page and uploading any file to library.

Any solution ?

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  • May be Microsoft is changing it's policy for custom managed code but it is not fully applicable everywhere. May be due to this, it causes issues. – Dikesh Gandhi Sep 12 '16 at 10:42
  • There is no managed code in the solution... It's working fine on other tennants & even on same tennant's other site collection.. – Ronak Patel Sep 12 '16 at 10:46
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    That's good. May be microsoft is deprecating the WSP solution on Office 365. It's not wise solution now to use wsp on Office 365. :) – Dikesh Gandhi Sep 12 '16 at 10:50
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    Yes..Now Code based Sandboxed solutions are no longer available in office 365. So you have to use the add-in model or pure client-side development. Please take a look in this dev.office.com/blogs/… – SP Developer Sep 12 '16 at 10:55
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    In that case, since it works on other tenant, this sounds like a good time to raise a support ticket with Office 365 support :) – Cthulhubutt Sep 14 '16 at 6:47
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Verify if you or someone else has registered an event receiver on the Site or List. If the event receivers solution can not be found you would get a message such as yours. In that case your WSP is not the failing file, it is the lingering reference to an event receiver.

Check all eventreceivers and remove the ones that should not be there. Then add the WSP again.

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