strapi install graphql plugin, error (hook:graphql) takes too long to load

strapi-start-graphql-error.log

georgep:~/Documents/workspace/strapiDemo$ strapi install graphql
[2018-10-02T22:27:49.418Z] debug Installation in progress...
[2018-10-02T22:27:49.420Z] debug Installing the plugin from npm registry.
[2018-10-02T22:27:54.319Z] debug Plugin successfully installed from npm registry.
[2018-10-02T22:27:54.319Z] debug Moving the `node_modules/strapi-plugin-graphql` folder to the `./plugins` folder.
[2018-10-02T22:27:54.331Z] info The plugin has been successfully installed.
georgep:~/Documents/workspace/strapiDemo$ strapi start
(node:44092) DeprecationWarning: collection.ensureIndex is deprecated. Use createIndexes instead.
(node:44092) UnhandledPromiseRejectionWarning: GraphQLError: Syntax Error: Expected Name, found }
    at syntaxError (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/error/syntaxError.js:24:10)
    at expect (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:1463:32)
    at parseName (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:96:15)
    at parseInputValueDef (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:920:14)
    at many (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:1520:16)
    at parseInputFieldsDefinition (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:1083:50)
    at parseInputObjectTypeDefinition (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:1067:16)
    at parseTypeSystemDefinition (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:736:16)
    at parseDefinition (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:142:16)
    at many (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:1523:16)
    at parseDocument (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:113:18)
    at Object.parse (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/node_modules/graphql/language/parser.js:48:10)
    at Object.addPolymorphicUnionType (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/services/Types.js:149:8)
    at Object.generateSchema (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/services/Schema.js:179:15)
    at Function.initialize (/Users/georgep/Documents/workspace/strapiDemo/plugins/graphql/hooks/graphql/index.js:148:50)
    at /usr/local/lib/node_modules/strapi/lib/hooks/index.js:19:29
    at after (/usr/local/lib/node_modules/strapi/lib/hooks/index.js:122:39)
    at /usr/local/lib/node_modules/strapi/node_modules/lodash/lodash.js:9999:23
    at Strapi.once (/usr/local/lib/node_modules/strapi/lib/hooks/index.js:133:17)
    at Object.onceWrapper (events.js:273:13)
    at Strapi.emit (events.js:182:13)
    at Strapi.EventEmitter.emit (domain.js:442:20)
    at loadedModule.initialize.call.err (/usr/local/lib/node_modules/strapi/lib/hooks/index.js:32:12)
    at _.forEach (/Users/georgep/Documents/workspace/strapiDemo/node_modules/strapi-hook-mongoose/lib/index.js:459:11)
    at process._tickCallback (internal/process/next_tick.js:68:7)
(node:44092) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:44092) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
[2018-10-02T22:28:06.430Z] debug ⛔️ Server wasn't able to start properly.
[2018-10-02T22:28:06.431Z] error (hook:graphql) takes too long to load
(hook:graphql) takes too long to load