I tried deploying an asp.net core 1.0.0 application on Heroku but failed

[jailce2017]

Buildpack: http://github.com/noliar/dotnet-buildpack.git
stack: cedar-14

Counting objects: 91, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (84/84), done.
Writing objects: 100% (91/91), 515.12 KiB | 0 bytes/s, done.
Total 91 (delta 5), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> ASP.NET Core app detected
remote: Installing Node
remote: Installing bower
remote: npm WARN deprecated bower@1.8.2: ...psst! Your project can stop working at any moment because its dependencies can change. Prevent this by migrating to Yarn: https://bower.io/blog/2017/how-to-migrate-away-from-bower/
remote: /tmp/tmp.aUoPRtFmYb/node-v4.4.4-linux-x64/bin/bower -> /tmp/tmp.aUoPRtFmYb/node-v4.4.4-linux-x64/lib/node_modules/bower/bin/bower remote: bower@1.8.2 /tmp/tmp.aUoPRtFmYb/node-v4.4.4-linux-x64/lib/node_modules/bower
remote: Get .NET Core Version and Channel from the PROJECT
remote: Get version from global.json
remote: Installing the dependencies
remote: Install package
remote: -----> Cleaning apt caches
remote: -----> Updating apt caches
remote: Ign http://archive.ubuntu.com trusty InRelease
remote: Get:1 http://archive.ubuntu.com trusty-security InRelease [65.9 kB]
remote: Get:2 http://apt.postgresql.org trusty-pgdg InRelease [56.4 kB]
remote: Get:3 http://archive.ubuntu.com trusty-updates InRelease [65.9 kB]
remote: Get:4 http://archive.ubuntu.com trusty Release.gpg [933 B]
remote: Get:5 http://archive.ubuntu.com trusty Release [58.5 kB]
remote: Get:6 http://apt.postgresql.org trusty-pgdg/main amd64 Packages [84.3 kB]
remote: Get:7 http://archive.ubuntu.com trusty-security/main amd64 Packages [700 kB]
remote: Ign http://apt.postgresql.org trusty-pgdg/main Translation-en_US
remote: Ign http://apt.postgresql.org trusty-pgdg/main Translation-en
remote: Get:8 http://archive.ubuntu.com trusty-security/universe amd64 Packages [200 kB]
remote: Get:9 http://archive.ubuntu.com trusty-security/main Translation-en [375 kB]
remote: Get:10 http://archive.ubuntu.com trusty-security/universe Translation-en [113 kB]
remote: Get:11 http://archive.ubuntu.com trusty-updates/main amd64 Packages [1,048 kB]
remote: Get:12 http://archive.ubuntu.com trusty-updates/universe amd64 Packages [438 kB]
remote: Get:13 http://archive.ubuntu.com trusty-updates/main Translation-en [517 kB]
remote: Get:14 http://archive.ubuntu.com trusty-updates/universe Translation-en [237 kB]
remote: Get:15 http://archive.ubuntu.com trusty/main amd64 Packages [1,350 kB]
remote: Get:16 http://archive.ubuntu.com trusty/universe amd64 Packages [5,859 kB]
remote: Get:17 http://archive.ubuntu.com trusty/main Translation-en [762 kB]
remote: Get:18 http://archive.ubuntu.com trusty/universe Translation-en [4,089 kB]
remote: Ign http://archive.ubuntu.com trusty/main Translation-en_US
remote: Ign http://archive.ubuntu.com trusty/universe Translation-en_US
remote: Fetched 16.0 MB in 10s (1,522 kB/s)
remote: Reading package lists...
remote: -----> Fetching .debs for libunwind8
remote: Reading package lists...
remote: Building dependency tree...
remote: The following NEW packages will be installed:
remote: libunwind8
remote: 0 upgraded, 1 newly installed, 0 to remove and 59 not upgraded.
remote: Need to get 48.3 kB of archives.
remote: After this operation, 194 kB of additional disk space will be used.
remote: Get:1 http://archive.ubuntu.com/ubuntu/ trusty/main libunwind8 amd64 1.1-2.2ubuntu3 [48.3 kB]
remote: Fetched 48.3 kB in 0s (161 kB/s)
remote: Download complete and in download only mode
remote: -----> Fetching .debs for gettext
remote: Reading package lists...
remote: Building dependency tree...
remote: The following extra packages will be installed:
remote: gettext-base libasprintf-dev libasprintf0c2 libgettextpo-dev libgettextpo0
remote: libunistring0
remote: Suggested packages:
remote: gettext-doc
remote: The following NEW packages will be installed:
remote: gettext gettext-base libasprintf-dev libasprintf0c2 libgettextpo-dev
remote: libgettextpo0 libunistring0
remote: 0 upgraded, 7 newly installed, 0 to remove and 59 not upgraded.
remote: Need to get 1,390 kB of archives.
remote: After this operation, 6,282 kB of additional disk space will be used.
remote: Get:1 http://archive.ubuntu.com/ubuntu/ trusty-updates/main libasprintf0c2 amd64 0.18.3.1-1ubuntu3 [6,712 B]
remote: Get:2 http://archive.ubuntu.com/ubuntu/ trusty/main libunistring0 amd64 0.9.3-5ubuntu3 [271 kB]
remote: Get:3 http://archive.ubuntu.com/ubuntu/ trusty-updates/main libgettextpo0 amd64 0.18.3.1-1ubuntu3 [108 kB]
remote: Get:4 http://archive.ubuntu.com/ubuntu/ trusty-updates/main gettext-base amd64 0.18.3.1-1ubuntu3 [48.8 kB]
remote: Get:5 http://archive.ubuntu.com/ubuntu/ trusty-updates/main gettext amd64 0.18.3.1-1ubuntu3 [829 kB]
remote: Get:6 http://archive.ubuntu.com/ubuntu/ trusty-updates/main libasprintf-dev amd64 0.18.3.1-1ubuntu3 [4,438 B]
remote: Get:7 http://archive.ubuntu.com/ubuntu/ trusty-updates/main libgettextpo-dev amd64 0.18.3.1-1ubuntu3 [122 kB]
remote: Fetched 1,390 kB in 1s (1,330 kB/s)
remote: Download complete and in download only mode
remote: -----> Installing gettext_0.18.3.1-1ubuntu3_amd64.deb
remote: -----> Installing gettext-base_0.18.3.1-1ubuntu3_amd64.deb
remote: -----> Installing libasprintf0c2_0.18.3.1-1ubuntu3_amd64.deb
remote: -----> Installing libasprintf-dev_0.18.3.1-1ubuntu3_amd64.deb
remote: -----> Installing libgettextpo0_0.18.3.1-1ubuntu3_amd64.deb
remote: -----> Installing libgettextpo-dev_0.18.3.1-1ubuntu3_amd64.deb
remote: -----> Installing libunistring0_0.9.3-5ubuntu3_amd64.deb
remote: -----> Installing libunwind8_1.1-2.2ubuntu3_amd64.deb
remote: APT packages Installled
remote: Installing .NET CORE 1.0.0-preview2-003131 from https://dotnetcli.blob.core.windows.net/dotnet/Sdk/rel-1.0.0/dotnet-dev-ubuntu-x64.latest.tar.gz
remote: Found 1 project.json files
remote: Building /tmp/tmp.9twbNSjSEl/src/aspnetteste/project.json
remote: Reading App Name from project.json
remote: aspnetteste
remote: Restoring the packages
remote:
remote: Welcome to .NET Core!
remote: ---------------------
remote: Learn more about .NET Core @ https://aka.ms/dotnet-docs. Use dotnet --help to see available commands or go to https://aka.ms/dotnet-cli-docs.
remote:
remote: Telemetry
remote: --------------
remote: The .NET Core tools collect usage data in order to improve your experience. The data is anonymous and does not include command-line arguments. The data is collected by Microsoft and shared with the community.
remote: You can opt out of telemetry by setting a DOTNET_CLI_TELEMETRY_OPTOUT environment variable to 1 using your favorite shell.
remote: You can read more about .NET Core tools telemetry @ https://aka.ms/dotnet-cli-telemetry.
remote:
remote: Configuring...
remote: -------------------
remote: A command is running to initially populate your local package cache, to improve restore speed and enable offline access. This command will take up to a minute to complete and will only happen once.
remote: Decompressing 100% 5115 ms
remote: Expanding 100% 17224 ms
remote: /tmp/build_c844190724032ffc3d13654f5eca3a92/dotnet/sdk/1.0.0-rc4-004933/NuGet.targets(97,5): warning : Unable to find a project to restore! [/tmp/tmp.9twbNSjSEl/aspnetteste.sln]
remote: Publishing the app
remote: Microsoft (R) Build Engine version 15.1.548.43366
remote: Copyright (C) Microsoft Corporation. All rights reserved.
remote:
remote: /tmp/tmp.9twbNSjSEl/src/aspnetteste/project.json(1,1): error MSB4025: The project file could not be loaded. Data at the root level is invalid. Line 1, position 1.
remote: ! Push rejected, failed to compile ASP.NET Core app.
remote:
remote: ! Push failed
remote: Verifying deploy...
remote:
remote: ! Push rejected to warm-stream-77591.
remote:
To https://git.heroku.com/warm-stream-77591.git
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/warm-stream-77591.git'