npm start throws errors

npm install works, but when trying to npm start, these errors are thrown. mdb version 6.2.5, Angualr CLI 6.0.8 console: Could not determine a single project for the 'serve' target. Error: Could not determine a single project for the 'serve' target. at ServeCommand.getProjectNamesByTarget (/home/dev1/code/mdb-angular-free-6.2.5/node_modules/@angular/cli/models/architect-command.js:175:19) at MergeMapSubscriber._loadWorkspaceAndArchitect.pipe.operators_1.concatMap [as project] (/home/dev1/code/mdb-angular-free-6.2.5/node_modules/@angular/cli/models/architect-command.js:50:43) at MergeMapSubscriber._tryNext (/home/dev1/code/mdb-angular-free-6.2.5/node_modules/rxjs/internal/operators/mergeMap.js:65:27) at MergeMapSubscriber._next (/home/dev1/code/mdb-angular-free-6.2.5/node_modules/rxjs/internal/operators/mergeMap.js:55:18) at MergeMapSubscriber.Subscriber.next (/home/dev1/code/mdb-angular-free-6.2.5/node_modules/rxjs/internal/Subscriber.js:64:18) at TapSubscriber._next (/home/dev1/code/mdb-angular-free-6.2.5/node_modules/rxjs/internal/operators/tap.js:62:26) at TapSubscriber.Subscriber.next (/home/dev1/code/mdb-angular-free-6.2.5/node_modules/rxjs/internal/Subscriber.js:64:18) at MergeMapSubscriber.notifyNext (/home/dev1/code/mdb-angular-free-6.2.5/node_modules/rxjs/internal/operators/mergeMap.js:84:26) at InnerSubscriber._next (/home/dev1/code/mdb-angular-free-6.2.5/node_modules/rxjs/internal/InnerSubscriber.js:25:21) at InnerSubscriber.Subscriber.next (/home/dev1/code/mdb-angular-free-6.2.5/node_modules/rxjs/internal/Subscriber.js:64:18) Logfile: 0 info it worked if it ends with ok 1 verbose cli [ '/usr/bin/node', '/usr/bin/npm', 'start' ] 2 info using npm@6.4.1 3 info using node@v10.11.0 4 verbose run-script [ 'prestart', 'start', 'poststart' ] 5 info lifecycle mdb-angular-free@6.2.5prestart: mdb-angular-free@6.2.5 6 info lifecycle mdb-angular-free@6.2.5start: mdb-angular-free@6.2.5 7 verbose lifecycle mdb-angular-free@6.2.5start: unsafe-perm in lifecycle true 8 verbose lifecycle mdb-angular-free@6.2.5start: PATH: /usr/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/home/dev1/code/mdb-angular-free-6.2.5/node_modules/.bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/lib/jvm/java-8-oracle/bin:/usr/lib/jvm/java-8-oracle/db/bin:/usr/lib/jvm/java-8-oracle/jre/bin:/home/dev1/npm/bin 9 verbose lifecycle mdb-angular-free@6.2.5start: CWD: /home/dev1/code/mdb-angular-free-6.2.5 10 silly lifecycle mdb-angular-free@6.2.5start: Args: [ '-c', 'ng serve' ] 11 silly lifecycle mdb-angular-free@6.2.5start: Returned: code: 1 signal: null 12 info lifecycle mdb-angular-free@6.2.5start: Failed to exec start script 13 verbose stack Error: mdb-angular-free@6.2.5 start: ng serve 13 verbose stack Exit status 1 13 verbose stack at EventEmitter. (/usr/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:301:16) 13 verbose stack at EventEmitter.emit (events.js:182:13) 13 verbose stack at ChildProcess. (/usr/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14) 13 verbose stack at ChildProcess.emit (events.js:182:13) 13 verbose stack at maybeClose (internal/child_process.js:962:16) 13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:251:5) 14 verbose pkgid mdb-angular-free@6.2.5 15 verbose cwd /home/dev1/code/mdb-angular-free-6.2.5 16 verbose Linux 4.15.0-36-generic 17 verbose argv "/usr/bin/node" "/usr/bin/npm" "start" 18 verbose node v10.11.0 19 verbose npm v6.4.1 20 error code ELIFECYCLE 21 error errno 1 22 error mdb-angular-free@6.2.5 start: ng serve 22 error Exit status 1 23 error Failed at the mdb-angular-free@6.2.5 start script. 23 error This is probably not a problem with npm. There is likely additional logging output above. 24 verbose exit [ 1, true ]

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