Used the compiler's context to get a relative path to the manifest file.

Author: reduckted

lib/DllReferencePlugin.js

@@ -54,9 +54,10 @@ class DllReferencePlugin {
 						} catch (e) {
 							// Store the error in the params so that it can
 							// be added as a compilation error later on.
-							const manifestPath = this.options.context
-								? makePathsRelative(this.options.context, manifest)
-								: manifest;
+							const manifestPath = makePathsRelative(
+								compiler.options.context,
+								manifest
+							);
 							params[
 								"dll reference parse error " + manifest
 							] = new DllManifestError(manifestPath, e.message);

test/__snapshots__/StatsTestCases.test.js.snap

@@ -731,15 +731,15 @@ Entrypoint main = bundle.js
 `;
 
 exports[`StatsTestCases should print correct stats for dll-reference-plugin-issue-7624-error 1`] = `
-"Hash: db465df0da5d95ebf88f
+"Hash: 701dcf62b26d0347b899
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
     Asset     Size  Chunks  Chunk Names
 bundle.js  3.6 KiB       0  main
 Entrypoint main = bundle.js
 [0] ./entry.js 29 bytes {0} [built]
 
-ERROR in Dll manifest Xdir/dll-reference-plugin-issue-7624-error/blank-manifest.json
+ERROR in Dll manifest blank-manifest.json
 Unexpected end of JSON input while parsing near ''"
 `;