ERROR from UglifyJs Unexpected character '@'

ERROR from UglifyJs Unexpected character '@'



I am getting below error when my Angular 6 App build as ng build ---prod


ng build ---prod



ERROR in scripts.28e0dfadf7f39e74e940.js from UglifyJs Unexpected
character '@' [scripts.28e0dfadf7f39e74e940.js:13,0]



What could be the issue?



tsconfig.json



"compileOnSave": false,
"compilerOptions":
"baseUrl": "./",
"outDir": "./dist/out-tsc",
"sourceMap": true,
"declaration": false,
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"target": "es5",
"typeRoots": [
"node_modules/@types"
],
"lib": [
"es2017",
"dom"
]






do you have any external script defined in your angular.json ?
– YoukouleleY
Aug 23 at 10:12





@YoukouleleY Yeah. node_modules/chart.js/dist/Chart.min.js and a ts file with custom functions for Pipe, PipeTransform
– Bishan
Aug 23 at 10:20



node_modules/chart.js/dist/Chart.min.js


Pipe, PipeTransform





as already answered, you can't import typescript files in there
– YoukouleleY
Aug 23 at 10:27




1 Answer
1



UglifyJS does not support ES2015 or higher. Decorators are not yet part of any ES specification, hence they are not supported. You have to transpile them firstly.






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