CONSOLE ERROR file:///app/tns_modules/tns-core-modules/trace/trace.js:165:30: ns-renderer: undefined is not an object (evaluating 'expr.visitExpression')

ios

#1

getting following error on iOS :

CONSOLE ERROR file:///app/tns_modules/tns-core-modules/trace/trace.js:165:30: ns-renderer: ERROR BOOTSTRAPPING ANGULAR
2018-04-11 14:19:04.472528+0200 Hieber[1136:452712] CONSOLE ERROR file:///app/tns_modules/tns-core-modules/trace/trace.js:165:30: ns-renderer: undefined is not an object (evaluating 'expr.visitExpression')

file:///app/tns_modules/@angular/compiler/bundles/compiler.umd.js:21295:59
visitAllObjects@file:///app/tns_modules/@angular/compiler/bundles/compiler.umd.js:21330:20
visitAllExpressions@file:///app/tns_modules/@angular/compiler/bundles/compiler.umd.js:21295:29
visitLiteralArrayExpr@file:///app/tns_modules/@angular/compiler/bundles/compiler.umd.js:21241:33
visitAllObjects@file:///app/tns_modules/@angular/compiler/bundles/compiler.umd.js:21330:20
visitAllExpressions@file:///app/tns_modules/@angular/compiler/bundles/compiler.umd.js:21295:29
visitLiteralArrayExpr@file:///app/tns_modules/@angular/compiler/bundles/compiler.umd.js:21241:33
visitReturnStmt@file:///app/tns_modules/@angular/compiler/bundles/compiler.umd.js:20825:35
forEach@[native code]
visitAllStatements@file:///app/tns_modules/@angular/compiler/bundles/compiler.umd.js:21350:27
visitFunctionExpr@fi
CONSOLE ERROR file:///app/tns_modules/tns-core-modules/trace/trace.js:165:30: ns-renderer: undefined is not an object (evaluating 'expr.visitExpression')