Compiling the LoRa App Server source-code


I use https://localhost:8080 to link to login UI but get incorrect result.there is only two label :“swagger/” and “vendor/” on the result webpage.what happend?error

The code of “migrations_gen.go” generated different
Lora-app-server make ui-requirements error
Only Rest Api on 8080
Unable to run 'make requirments;

Are you sure that both LoRaServer and LoRaAppServer are up and running?


yes,I can use mosquitto_sub to receive lora packets from lora_app_server,but can not link to correct webUI.


Could you post your configuration file ( /etc/default/lora-app-server ) and a sample packet you receive?


Did you compile the binary yourself?


I download the source code to my ubuntu and compiled it by myself and start it in the build folder ,I think it may not use configuration file,because I start it like this:
sudo ./lora_app_server --postgres-dns “postgres://loraserver_as:dbpassword@localhost/loraserver_as?sslmode=disable” --jwt-secret *************** --http-tls-cert /etc/lora-app-server/certs/http.pem --http-tls-key /etc/lora-app-server/certs/http-key.pem --db-automigrate --http-bind

and my packet is like this:


That answers my previous question. Please try again with the pre-compiled version that we provide.


yes,pre-compiled version can work correctly,how can i make self compiled version work correctly too?Is there any differences?thank you!


Without any information about what you tried, what commands you executed, what output was returned etc it will be hard for us to help you.


HI brocaar
First,thank you for your reply and thank you for your great works for this loraserver,and all my steps is followed below.
I used
sudo git clone
sudo git clone
sudo git clone
these three steps to download lora-gateway-bridge,loraserver and lora-app-server projects to my ubuntu PC.
cd lora-gateway-bridge
sudo make
after this step there is no error print out to the terminal and a new binary of lora-gateway-bridge came out to the “build” folder.then
cd build
sudo ./lora-gateway-bridge #this command launched the lora-gateway-bridge process
cd loraserver
sudo make
after this step there is no error print out to the terminal and a new binary of loraserver came out to the “build” folder.then
cd build
sudo ./loraserver --postgres-dns “postgres://loraserver_ns:dbpassword@localhost/loraserver_ns?sslmode=disable” --band XXXX --log-node-frames --net-id 010203 --db-automigrate --jwt-secret XXXXXXXX
#this command launched the loraserver process
cd lora-app-server
sudo make
after this step there is no error print out to the terminal and a new binary of lora-app-server came out to the “build” folder.then
cd build
sudo ./lora_app_server --postgres-dns “postgres://loraserver_as:dbpassword@localhost/loraserver_as?sslmode=disable” --jwt-secret XXXXXXXXX --http-tls-cert /etc/lora-app-server/certs/http.pem --http-tls-key /etc/lora-app-server/certs/http-key.pem --db-automigrate --http-bind
#this command launched the lora-app-server process
After all of these steps,I opened a firfox brower and input “https://localhost:8080” ,you already know the rest.

I followed your “LoRa Server documentation” to installed this lora server before at that time I can get the login UI correctly, so there is a history in my brower,but after I cleaned my history I can not get the login UI always comes out that above webpage.


Did you also run make requirements ui-requirements? Did you follow


Hi @shuangcai_huang and @brocaar, I had this problem already , but solved :slight_smile:

When we compile lora-app server, you have to be sure that there is no static files, you can delete them because the “make” will buld them again.

In case of to build the app of ui components, I have installed the react, i.e., you have to install your application also! After you install your react application you can even run the test with “npm start”. But to build the production static files, DO NOT RUN “NPM BUILD”! You have to compile all together! So every static files will be generated at correct places!

So when we run “make package package-deb GOOS=linux GOARCH=amd64”, you will have the .deb package, and thats all.

As brocaar said, be sure the you have installed correctly the ui requirements, understand a little how to even see the react app with the npm start and then build with make all together!


Hi @brocaar and @RogerioCassares ,thank you very much!
After run “make requirements ui-requirements” again,I can get the web-interface correctly now. I think
i need to get familiar with the npm more :blush:


I’ve removed the vendor/ folder from the git repository and moved the dependency management from govendor to dep.

The dependencies are now managed through a Gopkg.toml (containing the dependencies and desired version constraints) and Gopkg.lock (the current state, locked to a specific commit).

When executing make requirements the dep binary will be automatically installed after which dep ensure is called which will re-create the vendor/ folder matching the state of Gopkg.lock.


Your are so kind,thank you very much! I will follow your steps and try to compile it again after upgrade to your new version.:blush:


Trying to install lora-app-server following this guide:
Here is errors log during make ui-requirements:

Installing UI requirements
loadDep:prop-types        ▄ ╢████████████████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟
loadDep:fsevents → 200    ▐ ╢█████████████████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟
loadDep:fsevents → resolv ▐ ╢█████████████████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟
WARN engine file-loader@1.1.5: wanted: {"node":">= 4.3 < 5.0.0 || >= 5.10"} (current: {"node":"4.2.6","npm":"                                                 loadDep:fsevents → header ▌ ╢█████████████████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟
WARN engine react-dev-utils@5.0.0: wanted: {"node":">=6"} (current: {"node":"4.2.6","npm":"3.5.2"})
WARN engine extract-text-webpack-plugin@3.0.2: wanted: {"node":">= 4.8 < 5.0.0 || >= 5.10"} (current: {"node"                                                 loadDep:fsevents → fetch  ▐ ╢█████████████████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟
loadDep:fsevents → resolv ▐ ╢█████████████████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟
WARN engine webpack@3.8.1: wanted: {"node":">=4.3.0 <5.0.0 || >=5.10"} (current: {"node":"4.2.6","npm":"3.5.2                                                 loadDep:jsx-ast-utils → a ▄ ╢████████████████████████████████████████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟
loadDep:uuid → addNameRan ▀ ╢██████████████████████████████████████████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟
loadDep:yargs → afterAdd  ▐ ╢█████████████████████████████████████████████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟
loadDep:yargs → get       ▌ ╢█████████████████████████████████████████████████████░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╟
WARN engine uglifyjs-webpack-plugin@0.4.6: wanted: {"node":">=4.3.0 <5.0.0 || >=5.10"} (current: {"node":"4.2.6","npm":"3.5.2"})

> uglifyjs-webpack-plugin@0.4.6 postinstall /home/go/src/
> node lib/post_install.js

sh: 1: node: not found
ui@0.1.0 /home/go/src/
├── acorn-dynamic-import@2.0.2  extraneous
├── autoprefixer@7.1.6  extraneous
├── babel-eslint@7.2.3  extraneous
├── babel-loader@7.1.2  extraneous
├── babel-preset-react-app@3.1.1  extraneous
├── bootstrap@3.3.7
├── bootswatch@3.3.7
├── case-sensitive-paths-webpack-plugin@2.1.1  extraneous
├── chart.js@1.1.1
├── codemirror@5.34.0
├── css-loader@0.28.7  extraneous
├── dotenv@4.0.0  extraneous
├── dotenv-expand@4.0.1  extraneous
├── enhanced-resolve@3.4.1  extraneous
├── escope@3.6.0  extraneous
├── eslint@4.10.0  extraneous
├── eslint-config-react-app@2.1.0  extraneous
├── eslint-loader@1.9.0  extraneous
├── eslint-plugin-flowtype@2.39.1  extraneous
├── eslint-plugin-import@2.8.0  extraneous
├── eslint-plugin-jsx-a11y@5.1.1  extraneous
├── eslint-plugin-react@7.4.0  extraneous
├── extract-text-webpack-plugin@3.0.2  extraneous
├── file-loader@1.1.5  extraneous
├─┬ flux@3.1.3
│ ├── fbemitter@2.1.1
│ └─┬ fbjs@0.8.16
│   ├── core-js@1.2.7
│   ├─┬ isomorphic-fetch@2.2.1
│   │ └─┬ node-fetch@1.7.3
│   │   ├─┬ encoding@0.1.12
│   │   │ └── iconv-lite@0.4.19
│   │   └── is-stream@1.1.0
│   ├─┬ promise@7.3.1
│   │ └── asap@2.0.6
│   ├── setimmediate@1.0.5
│   └── ua-parser-js@0.7.17
├── fs-extra@3.0.1  extraneous
├─┬ history@4.7.2
│ ├── invariant@2.2.2
│ ├─┬ loose-envify@1.3.1
│ │ └── js-tokens@3.0.2
│ ├── resolve-pathname@2.2.0
│ ├── value-equal@0.4.0
│ └── warning@3.0.0
├── html-webpack-plugin@2.29.0  extraneous
├── interpret@1.1.0  extraneous
├── jest@20.0.4  extraneous
├── json-loader@0.5.7  extraneous
├── leaflet@1.3.1
├── loader-runner@2.3.0  extraneous
├── mem@1.1.0  extraneous
├── moment@2.20.1
├── node-libs-browser@2.1.0  extraneous
├── postcss-flexbugs-fixes@3.2.0  extraneous
├── postcss-loader@2.0.8  extraneous
├── raf@3.4.0  extraneous
├─┬ react@16.2.0
│ ├── object-assign@4.1.1
│ └── prop-types@15.6.0
├─┬ react-chartjs@1.2.0
│ └── create-react-class@15.6.3
├── react-codemirror2@3.0.7
├── react-dev-utils@5.0.0  extraneous
├── react-dom@16.2.0
├── react-input-autosize@2.2.1
├─┬ react-json-tree@0.11.0
│ ├─┬ babel-runtime@6.26.0
│ │ ├── core-js@2.5.3
│ │ └── regenerator-runtime@0.11.1
│ └─┬ react-base16-styling@0.5.3
│   ├── base16@1.0.0
│   ├── lodash.curry@4.1.1
│   ├── lodash.flow@3.5.0
│   └── pure-color@1.3.0
├─┬ react-leaflet@1.8.0
│ ├── lodash@4.17.5
│ └── lodash-es@4.17.5
├─┬ react-router-dom@4.2.2
│ └─┬ react-router@4.2.0
│   ├── hoist-non-react-statics@2.3.1
│   └─┬ path-to-regexp@1.7.0
│     └── isarray@0.0.1
├─┬ react-select@1.2.1
│ └── classnames@2.2.5
├── style-loader@0.19.0  extraneous
├── sw-precache-webpack-plugin@0.11.4  extraneous
├── url-loader@0.6.2  extraneous
├── watchpack@1.4.0  extraneous
├── UNMET PEER DEPENDENCY webpack@1 || 2 || 3
├── webpack-dev-server@2.9.4  extraneous
├── webpack-manifest-plugin@1.3.2  extraneous
└── whatwg-fetch@2.0.3

npm WARN optional Skipping failed optional dependency /react-scripts/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.1.2
npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.1.3
npm ERR! Linux 4.4.0-112-generic
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install"
npm ERR! node v4.2.6
npm ERR! npm  v3.5.2
npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! syscall spawn

npm ERR! uglifyjs-webpack-plugin@0.4.6 postinstall: `node lib/post_install.js`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the uglifyjs-webpack-plugin@0.4.6 postinstall script 'node lib/post_install.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the uglifyjs-webpack-plugin package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node lib/post_install.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs uglifyjs-webpack-plugin
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls uglifyjs-webpack-plugin
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/go/src/
Makefile:79: recipe for target 'ui-requirements' failed
make: *** [ui-requirements] Error 1

Nodejs version is v4.2.6. Does lora-app-server requires to newer jodejs version to be installed or there is quick uglifyjs-webpack-plugin0.4.6 fixing typo exist?


npm ERR! Make sure you have the latest version of node.js and npm installed.

Did you try to upgrade your node version? This is what I’m using locally.

$ node --version
$ npm --version

Alternatively, you could try the provided Docker containers for building the source.


Did you installed it from PPA? Apt-get gives me 4.2.6 on Ubuntu 16.04.


I am facing this issue while compiling the app server code (without Docker)


Did you install all requirements first (as documented)?

# install all requirements
make requirements ui-requirements