diff --git a/package-lock.json b/package-lock.json
old mode 100755
new mode 100644
index 517fe4e..842d130
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,9 +1,18 @@
 {
   "name": "hp-conference-app",
-  "version": "1.1.0",
+  "version": "1.1.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
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+      "resolved": "https://registry.npmjs.org/@ampproject/remapping/-/remapping-2.2.1.tgz",
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+      "requires": {
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+        "@jridgewell/trace-mapping": "^0.3.9"
+      }
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       "resolved": "https://registry.npmjs.org/@angular-devkit/build-optimizer/-/build-optimizer-0.0.35.tgz",
@@ -49,14 +58,159 @@
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-        "minimist": "^1.2.0",
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+        "@jridgewell/sourcemap-codec": "^1.4.14",
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+        },
+        "yargs": {
+          "version": "17.7.1",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.1.tgz",
+          "integrity": "sha512-cwiTb08Xuv5fqF4AovYacTFNxk62th7LKJ6BL9IGUpTJrWoU7/7WdQGTP2SjKf1dUNBGzDd28p/Yfs/GI6JrLw==",
+          "requires": {
+            "cliui": "^8.0.1",
+            "escalade": "^3.1.1",
+            "get-caller-file": "^2.0.5",
+            "require-directory": "^2.1.1",
+            "string-width": "^4.2.3",
+            "y18n": "^5.0.5",
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+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-21.1.1.tgz",
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     "@angular/core": {
@@ -108,6 +262,226 @@
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       "resolved": "https://registry.npmjs.org/des.js/-/des.js-1.0.0.tgz",
@@ -2830,6 +3349,11 @@
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       }
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+      "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
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+    },
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       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -2839,8 +3363,7 @@
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-      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
-      "dev": true
+      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
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@@ -2938,22 +3461,6 @@
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@@ -3055,14 +3562,6 @@
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@@ -3122,21 +3621,22 @@
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+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
+      "integrity": "sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==",
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-        "isobject": "^2.0.0",
-        "randomatic": "^3.0.0",
-        "repeat-element": "^1.1.2",
-        "repeat-string": "^1.5.2"
+        "to-regex-range": "^5.0.1"
+      },
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+          "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
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+          "requires": {
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+          }
+        }
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@@ -3175,15 +3675,8 @@
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-      "requires": {
-        "for-in": "^1.0.1"
-      }
+      "integrity": "sha1-gQaNKVqBQuwKxybG4iAMMPttXoA=",
+      "dev": true
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@@ -3248,6 +3741,7 @@
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+      "dev": true,
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@@ -3257,21 +3751,25 @@
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           "bundled": true,
+          "dev": true,
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@@ -3281,11 +3779,13 @@
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@@ -3295,31 +3795,37 @@
         "chownr": {
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           "bundled": true,
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@@ -3328,21 +3834,25 @@
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           "bundled": true,
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@@ -3351,11 +3861,13 @@
         "fs.realpath": {
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@@ -3371,6 +3883,7 @@
         "glob": {
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           "bundled": true,
+          "dev": true,
           "optional": true,
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@@ -3384,11 +3897,13 @@
         "has-unicode": {
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           "bundled": true,
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@@ -3397,6 +3912,7 @@
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@@ -3405,6 +3921,7 @@
         "inflight": {
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           "bundled": true,
+          "dev": true,
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@@ -3414,16 +3931,19 @@
         "inherits": {
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           "bundled": true,
+          "dev": true,
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           "bundled": true,
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@@ -3432,11 +3952,13 @@
         "isarray": {
           "version": "1.0.0",
           "bundled": true,
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         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "dev": true,
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@@ -3445,11 +3967,13 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
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         "minipass": {
           "version": "2.3.5",
           "bundled": true,
+          "dev": true,
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@@ -3459,6 +3983,7 @@
         "minizlib": {
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           "bundled": true,
+          "dev": true,
           "optional": true,
           "requires": {
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@@ -3467,6 +3992,7 @@
         "mkdirp": {
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           "bundled": true,
+          "dev": true,
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@@ -3475,17 +4001,20 @@
         "ms": {
           "version": "2.1.1",
           "bundled": true,
+          "dev": true,
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         "nan": {
           "version": "2.14.0",
           "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz",
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+          "dev": true,
           "optional": true
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         "needle": {
           "version": "2.3.0",
           "bundled": true,
+          "dev": true,
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@@ -3496,6 +4025,7 @@
         "node-pre-gyp": {
           "version": "0.12.0",
           "bundled": true,
+          "dev": true,
           "optional": true,
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@@ -3513,6 +4043,7 @@
         "nopt": {
           "version": "4.0.1",
           "bundled": true,
+          "dev": true,
           "optional": true,
           "requires": {
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@@ -3522,11 +4053,13 @@
         "npm-bundled": {
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           "bundled": true,
+          "dev": true,
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         "npm-packlist": {
           "version": "1.4.1",
           "bundled": true,
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@@ -3536,6 +4069,7 @@
         "npmlog": {
           "version": "4.1.2",
           "bundled": true,
+          "dev": true,
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@@ -3547,16 +4081,19 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
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         },
         "object-assign": {
           "version": "4.1.1",
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         "once": {
           "version": "1.4.0",
           "bundled": true,
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@@ -3565,16 +4102,19 @@
         "os-homedir": {
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         },
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         "osenv": {
           "version": "0.1.5",
           "bundled": true,
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@@ -3584,16 +4124,19 @@
         "path-is-absolute": {
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         "rc": {
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+          "dev": true,
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@@ -3605,6 +4148,7 @@
             "minimist": {
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               "bundled": true,
+              "dev": true,
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           }
@@ -3612,6 +4156,7 @@
         "readable-stream": {
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           "bundled": true,
+          "dev": true,
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@@ -3626,6 +4171,7 @@
         "rimraf": {
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           "bundled": true,
+          "dev": true,
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@@ -3634,36 +4180,43 @@
         "safe-buffer": {
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           "bundled": true,
+          "dev": true,
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           "bundled": true,
+          "dev": true,
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         "semver": {
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         "set-blocking": {
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         },
         "signal-exit": {
           "version": "3.0.2",
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         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "dev": true,
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@@ -3674,6 +4227,7 @@
         "string_decoder": {
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           "bundled": true,
+          "dev": true,
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@@ -3682,6 +4236,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "dev": true,
           "optional": true,
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@@ -3690,11 +4245,13 @@
         "strip-json-comments": {
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           "bundled": true,
+          "dev": true,
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         "tar": {
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@@ -3709,11 +4266,13 @@
         "util-deprecate": {
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+          "dev": true,
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         },
         "wide-align": {
           "version": "1.1.3",
           "bundled": true,
+          "dev": true,
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@@ -3722,11 +4281,13 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
+          "dev": true,
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         },
         "yallist": {
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+          "dev": true,
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       }
@@ -3773,6 +4334,11 @@
         "globule": "^1.0.0"
       }
     },
+    "gensync": {
+      "version": "1.0.0-beta.2",
+      "resolved": "https://registry.npmjs.org/gensync/-/gensync-1.0.0-beta.2.tgz",
+      "integrity": "sha512-3hN7NaskYvMDLQY55gnW3NQ+mesEAepTqlg+VEbj7zzqEMBVNhzcGYYeqFo/TlYz6eQiFcp1HcsCZO+nGgS8zg=="
+    },
     "get-caller-file": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-1.0.3.tgz",
@@ -3819,23 +4385,19 @@
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-      "resolved": "https://registry.npmjs.org/glob-base/-/glob-base-0.3.0.tgz",
-      "integrity": "sha1-27Fk9iIbHAscz4Kuoyi0l98Oo8Q=",
-      "requires": {
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-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-2.0.0.tgz",
-      "integrity": "sha1-gTg9ctsFT8zPUzbaqQLxgvbtuyg=",
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
+      "integrity": "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==",
       "requires": {
-        "is-glob": "^2.0.0"
+        "is-glob": "^4.0.1"
       }
     },
+    "globals": {
+      "version": "11.12.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-11.12.0.tgz",
+      "integrity": "sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA=="
+    },
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       "resolved": "https://registry.npmjs.org/globule/-/globule-1.2.1.tgz",
@@ -3888,8 +4450,7 @@
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       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
-      "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
-      "dev": true
+      "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0="
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@@ -4276,6 +4837,7 @@
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       "integrity": "sha1-dfFmQrSA8YenEcgUFh/TpKdlWJg=",
+      "dev": true,
       "requires": {
         "binary-extensions": "^1.0.0"
       }
@@ -4283,7 +4845,8 @@
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@@ -6657,15 +7125,6 @@
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-      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.6.tgz",
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@@ -6859,6 +7318,7 @@
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+      "dev": true,
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@@ -6900,7 +7360,6 @@
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@@ -7086,6 +7545,11 @@
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       "dev": true
     },
+    "to-fast-properties": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+      "integrity": "sha512-/OaKK0xYrs3DmxRYqL/yDc+FxFUVYhDlXMhRmv3z915w2HF1tnN1omB354j8VUGO/hbRzyD6Y3sA7v7GS/ceog=="
+    },
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       "resolved": "https://registry.npmjs.org/to-object-path/-/to-object-path-0.3.0.tgz",
@@ -7167,17 +7631,6 @@
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-    "tsickle": {
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-      "resolved": "https://registry.npmjs.org/tsickle/-/tsickle-0.27.5.tgz",
-      "integrity": "sha512-NP+CjM1EXza/M8mOXBLH3vkFEJiu1zfEAlC5WdJxHPn8l96QPz5eooP6uAgYtw1CcKfuSyIiheNUdKxtDWCNeg==",
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-        "source-map": "^0.6.0",
-        "source-map-support": "^0.5.0"
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@@ -7471,6 +7924,15 @@
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       "dev": true
     },
+    "update-browserslist-db": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.0.11.tgz",
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+      "requires": {
+        "escalade": "^3.1.1",
+        "picocolors": "^1.0.0"
+      }
+    },
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       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
@@ -7522,7 +7984,8 @@
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-      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+      "dev": true
     },
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diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 1d42224..1ee63a6
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
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     "@angular/common": "5.2.11",
     "@angular/compiler": "5.2.11",
-    "@angular/compiler-cli": "5.2.11",
+    "@angular/compiler-cli": "15.2.8",
     "@angular/core": "5.2.11",
     "@angular/forms": "5.2.11",
     "@angular/http": "5.2.11",