Getting Error while deploying

[suryakantamangaraj]

11:07:53 PM: Failing build: Failed to parse configuration
11:07:53 PM: Failed during stage 'Reading and parsing configuration files':
{
"siteInfo": {
"id": "a576b30f-6e1a-4eab-bdcd-41147f90983b"
},
"accounts": [],
"addons": [],
"env": {},
"configPath": "/opt/build/repo/netlify.toml",
"redirectsPath": "/opt/build/repo/public/_redirects",
"headersPath": "/opt/build/repo/public/_headers",
"buildDir": "/opt/build/repo",
"repositoryRoot": "/opt/build/repo",
"config": {
"functions": {
"*": {}
},
"plugins": [
{
"package": "@netlify/plugin-lighthouse",
"origin": "ui",
"inputs": {}
},
{
"package": "netlify-plugin-gatsby-cache",
"origin": "config",
"inputs": {}
}
],
"build": {
"environment": "NODE_VERSION=10",
"publish": "/opt/build/repo/public",
"publishOrigin": "config",
"processing": {
"css": {},
"html": {},
"images": {},
"js": {}
},
"services": {},
"command": "npm run build",
"commandOrigin": "config"
},
"headers": [],
"redirects": []
},
"context": "production",
"branch": "master"
}
: json: cannot unmarshal string into Go struct field BuildConfig.Config.build.environment of type map[string]string
11:07:53 PM: Finished processing build request in 2.175675589s