startClient(dotEnsime, statusbarOutput(statusbarItem, typechecking)).then((connection) => {
            mainLog.debug('got a connection, creating instance')
            const instance = ensimeClient.makeInstanceOf(dotEnsime, connection, null)

            instanceManager.registerInstance(instance)
            if (! activeInstance)
            activeInstance = instance

            vscode.window.showInformationMessage("Ensime connected!")
            TypeCheck.register(instanceManager)
            const hoverProvider = TypeHoverProvider.hoverProvider(instanceManager)
            typeHover = vscode.languages.registerHoverProvider('scala', hoverProvider);
            completionsDisposable = vscode.languages.registerCompletionItemProvider('scala', Completions.completionsProvider())



            instanceManager.registerInstance(instance)

            if (!activeInstance)
            {
                activeInstance = instance
            }

            connection.post({"typehint":"ConnectionInfoReq"}).then( (msg) => {})

            switchToInstance(instance)
        }, (failure) => {

export function deactivate() {
    if(instanceManager)
    {
        instanceManager.destroyAll()
    }
    if(typeHover)
    {
        typeHover.dispose()
        completionsDisposable.dispose()
    }
}

 (dotEnsime) => { return instanceManager.isStarted(dotEnsime) }