Uthistran S. Uthistran S. - 2 months ago 48
Javascript Question

TypeScript error TS5014: Unexpected token u in JSON at position 0

I am trying to compile a .ts to .js

I have

tsconfig.json
as below

{
"compilerOptions": {
"target": "es5",
"module": "commonjs",
"sourceMap": true,
"outFile": "build/test.js"
},
"exclude": [
"node_modules"
]
}


below is my
package.json


{
"name": "test",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"dependencies": {
"tsc": "^1.20150623.0",
"typescript": "^2.4.2"
}
}


and the auto generated
tasks.json
looks like below

{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
"version": "2.0.0",
"tasks": [
{
"type": "typescript",
"tsconfig": "tsconfig.json",
"problemMatcher": [
"$tsc"
],
"group": {
"kind": "build",
"isDefault": true
}
}
]
}


When I try to run the build task, I am getting the below error

Executing task: <myprojloc>\node_modules\.bin\tsc.cmd -p "<myprojloc>\tsconfig.json" <

error TS5014: Failed to parse file '<myprojloc>/tsconfig.json/tsconfig.json': Unexpected token u in JSON at position 0.

Terminal will be reused by tasks, press any key to close it.


What I am doing wrong? Please, note I have added the versions in
package.json

Answer Source

After getting advice from collegues and trying something from this link, I re-write the tasks.json as below and it now worked. Seems the command has some problem previously

{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
"version": "2.0.0",
"tasks": [
    {
        "taskName": "compile",
        "type": "shell",
        "command": "tsc -p tsconfig.json",
        "group": {
            "kind": "build",
            "isDefault": true
        },
        "problemMatcher": []
    }
]
}