electron · MarshallOfSound · May 18, 2018 · May 13, 2018 · May 14, 2018 · May 14, 2018
diff --git a/packages/api/core/src/api/package.ts b/packages/api/core/src/api/package.ts
@@ -175,6 +175,10 @@ export default async ({
   });
   packageOpts.quiet = true;
 
+  if (packageOpts.all) {
+    throw new Error('config.forge.packagerConfig.all is not supported by Electron Forge');
+  }
+
   if (!packageJSON.version && !packageOpts.appVersion) {
     // eslint-disable-next-line max-len
     warn(interactive, 'Please set "version" or "config.forge.packagerConfig.appVersion" in your application\'s package.json so auto-updates work properly'.yellow);

diff --git a/packages/api/core/test/slow/api_spec_slow.ts b/packages/api/core/test/slow/api_spec_slow.ts
@@ -214,6 +214,16 @@ describe(`electron-forge API (with installer=${nodeInstaller})`, () => {
       await fs.writeJson(path.resolve(dir, 'package.json'), packageJSON);
     });
 
+    it('throws an error when all is set', async () => {
+      let packageJSON = await readPackageJSON(dir);
+      packageJSON.config.forge.packagerConfig.all = true;
+      await fs.writeJson(path.join(dir, 'package.json'), packageJSON);
+      await expect(forge.package({ dir })).to.eventually.be.rejectedWith(/packagerConfig\.all is not supported by Electron Forge/);
+      packageJSON = await readPackageJSON(dir);
+      delete packageJSON.config.forge.packagerConfig.all;
+      await fs.writeJson(path.join(dir, 'package.json'), packageJSON);
+    });
+
     it('can package to outDir without errors', async () => {
       const outDir = `${dir}/foo`;