let srcDir = tsProject.config.compilerOptions.rootDir;
let outDir = tsProject.config.compilerOptions.outDir;
+// Under some environments like TravisCI, this comes out at absolute which can
+// break the build. This ensures that the outDir is absolute.
+if (outDir.indexOf(__dirname) !== 0) {
+ outDir = `${__dirname}/${outDir}`;
+}
+
/**
* Compile TypeScript sources to JavaScript files and create a source map file for each TypeScript
* file compiled.