Spring Tool Suite says it could not create BootDashView (or any Spring view)

Question

When I go to the "Boot Dashboard" (Update: actually I see similar messages on each Spring view) view I see the message

Could not create the view: org.springframework.ide.eclipse.boot.dash.views.BootDashView

There is an icon to see the error logs beside it, so I deleted them, reopened STS, and I did not see any error.

Any guidance on how to resolve this or further debug it?

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More info

After following Martin's advice and opening the Host OSGi Console and typing ss to get the short status and doing diag <id> on a few different things all I was ever able to get was similar to this,

org.springframework.ide.eclipse.boot.dash [962]
  No resolution report for the bundle.

Martin mentioned looking for INSTALLED, but all I saw were ACTIVE, RESOLVED, STARTING, and <<LAZY>>. I ran diag on at least one bundle of each state, but got nothing any different than above (of course the names and IDs were different).

Answer 1

I was facing the similar issue with Spring Boot Dash view and using -clean option and restart STS worked for me.

Answer 2

Just faced the same issue upgrading to latest STS 3.8.3 based on Neon.2 (4.6.2). Starting with the -clean option did nothing for me, neither did uninstalling / reinstalling the Groovy Eclipse feature as discussed.

What resolved it for me was switching to a new clean workspace - the boot dashboard then started working again. Oddly, it also works if I now switch back to the old workspace. Before this, the module was showing as LAZY in the Host OSGi console, now it's ACTIVE:

966 ACTIVE      org.springframework.ide.eclipse.boot.dash_3.8.3.201612191259-RELEASE