Sitecore indexes

Index not rebuilding. Spins and spins. Make sure MongoDB is running (either as a service or manually)

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Coveo index would not build. Gave this error:

Precondition failed: The parameter 'p_Communication' must not be null on index rebuild

Solution: go to user manager > find coveoservice user > chage it's password (generate random, use as old password, for new password type 'coveroservice'. Go to SC control panel Coveo section > Configuration. Configure user. Type new password. Rebuild index.

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Was getting a security provider error on the Coveo console:

http://intuitivesurgical.dev.local/sitecore%20modules/Web/Coveo/Admin/CoveoDiagnosticPage.aspx

Provder gets initiated/created when you rebuild a Coveo master index.