It seems I can't save anything using developer console, Class, Page etc.
I update a file and then I hit save. something I get this error but most of the time it just stays at the saving... state.
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Sign up to join this communityThe Developer Console uses the Tooling API to save Apex and VF. The Tooling API saves these entities by using a MetatdataContainer and MetatdataContainerMembers. The errors don't make much sense to me, but it looks like the console is in a bad state.
1.) You can try to create a New Workspace and switch to it.
2.) Clear the container members (or container) every time you open the developer console, which is a hassle. (You can delete them by using Tooling API)
You can delete MetadataContainer records either using Tooling API or via UI.
Access the list page for the MetadataContainer objects, like https://mydomain.salesforce.com/1dc
Let me know if it helps!