Minecraft does not start with Forge

Minecraft does not start, if I want to play with mods.

Here is the log:

22:26:53.785

Preparing to launch minecraft client for 1.12.2-forge1.12.2-14.23.5.2768

22:26:53.787

Prepared asset index

22:26:53.817

Have 1346 total files to check or download

22:26:53.822

Waiting for 1346 futures

22:26:54.123

Couldn't fetch SHA1 checksum for http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.12.2-14.23.5.2768/forge-1.12.2-14.23.5.2768.jar

22:26:54.125

Have local file C:\Users\admin\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.12.2-14.23.5.2768\forge-1.12.2-14.23.5.2768.jar but don't know what size or hash it should be. Have to assume it's good.

22:26:54.293

Couldn't fetch SHA1 checksum for http://files.minecraftforge.net/maven/org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar

22:26:54.295

Have local file C:\Users\admin\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.11.1\scala-compiler-2.11.1.jar but don't know what size or hash it should be. Have to assume it's good.

22:26:54.333

Couldn't fetch SHA1 checksum for http://files.minecraftforge.net/maven/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar

22:26:54.334

Have local file C:\Users\admin\AppData\Roaming\.minecraft\libraries\org\scala-lang\plugins\scala-continuations-library_2.11\1.0.2\scala-continuations-library_2.11-1.0.2.jar but don't know what size or hash it should be. Have to assume it's good.

22:26:54.376

Couldn't fetch SHA1 checksum for http://files.minecraftforge.net/maven/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar

22:26:54.378

Have local file C:\Users\admin\AppData\Roaming\.minecraft\libraries\org\scala-lang\plugins\scala-continuations-plugin_2.11.1\1.0.2\scala-continuations-plugin_2.11.1-1.0.2.jar but don't know what size or hash it should be. Have to assume it's good.

22:26:54.421

Couldn't fetch SHA1 checksum for http://files.minecraftforge.net/maven/org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar

22:26:54.423

Have local file C:\Users\admin\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-actors-migration_2.11\1.1.0\scala-actors-migration_2.11-1.1.0.jar but don't know what size or hash it should be. Have to assume it's good.

22:26:54.452

Couldn't fetch SHA1 checksum for http://files.minecraftforge.net/maven/org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar

22:26:54.453

Have local file C:\Users\admin\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.11.1\scala-library-2.11.1.jar but don't know what size or hash it should be. Have to assume it's good.

22:26:54.495

Couldn't fetch SHA1 checksum for http://files.minecraftforge.net/maven/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar

22:26:54.496

Have local file C:\Users\admin\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-parser-combinators_2.11\1.0.1\scala-parser-combinators_2.11-1.0.1.jar but don't know what size or hash it should be. Have to assume it's good.

22:26:54.496

Couldn't fetch SHA1 checksum for http://files.minecraftforge.net/maven/org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar