Issue while trying to configure the database

[codeyogi911]

Everything was working fine until I tried to delete the only table in my project. Find below the error trace: $ awsmobile database configure

(node:43624) UnhandledPromiseRejectionWarning: SyntaxError: Unexpected token u in JSON at position 0
    at JSON.parse (<anonymous>)
    at createTableJsonStructure (/usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations/scripts/database-ops.js:809:19)
    at /usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations/scripts/database-ops.js:924:38
    at new Promise (<anonymous>)
    at main (/usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations/scripts/database-ops.js:915:10)
    at /usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations/scripts/database-ops.js:979:5
    at new Promise (<anonymous>)
    at Object.exports.specify (/usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations/scripts/database-ops.js:978:10)
    at Object.specify (/usr/local/lib/node_modules/awsmobile-cli/lib/backend-operations/ops-database.js:31:27)
    at Object.configureFeature (/usr/local/lib/node_modules/awsmobile-cli/lib/backend-operations/backend-spec-manager.js:174:24)
(node:43624) 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: 2)
(node:43624) [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.

[shukla12manish]

Same error trace is coming to me also while configuring database in hello-world app as given in the aws documentation.

What if i delete "feature-operation" folder from (/usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations) and redo the database configure process from start.

[shukla12manish]

My issue resolved. I again made a new project and followed each step in aws documentation as it is starting from awsmobile init command and it worked this time there was no error.

I concluded that if there is no breakage during the database setup process. This error doesn't occur.

[jtushar53]

hi,

Me too facing same issue, i am actually new to awsmobile hub and had multiple times deleted table , created table, created index and pushed it after some time it started giving me the error.

Thanks

[jtushar53]

My workaround,

run awsmobile features

the disable database

run awsmobile features again

enable database

then try to run awsmobile configure database

See below console output

`AWSProject Tushar$ awsmobile database configure

(node:15349) UnhandledPromiseRejectionWarning: SyntaxError: Unexpected token u in JSON at position 0 at JSON.parse () at createTableJsonStructure (/usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations/scripts/database-ops.js:809:19) at /usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations/scripts/database-ops.js:924:38 at new Promise () at main (/usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations/scripts/database-ops.js:915:10) at /usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations/scripts/database-ops.js:979:5 at new Promise () at Object.exports.specify (/usr/local/lib/node_modules/awsmobile-cli/lib/feature-operations/scripts/database-ops.js:978:10) at Object.specify (/usr/local/lib/node_modules/awsmobile-cli/lib/backend-operations/ops-database.js:31:27) at Object.configureFeature (/usr/local/lib/node_modules/awsmobile-cli/lib/backend-operations/backend-spec-manager.js:174:24) (node:15349) 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: 2) (node:15349) [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.

macbook-pro:AWSProject Tushar$ awsmobile features

? select features: user-signin, user-files, analytics, hosting Warning: local contents for the feature will be removed if you disable it ? please confirm to disable: database Yes disabled: database backend awsmobile project enabled features: analytics, hosting, user-files, user-signin

macbook-pro:AWSProject Tushar$ awsmobile features

? select features: user-signin, user-files, database, analytics, hosting enabled: database backend awsmobile project enabled features: analytics, database, hosting, user-files, user-signin

macbook-pro:AWSProject Tushar$ awsmobile database configure

? Select from one of the choices below. (Use arrow keys) ❯ Create a new table Remove table from the project Edit table from the project

macbook-pro:AWSProject Tushar$ `

hope it helps someone