React Native Expo: Background Location has not been configured. To enable it, add location to UIBackgroundModes in Info.plistfile
I am using expo-location and trying to do background location tracking.
my app.json under IOS includes this
"infoPlist": { "UIBackgroundModes": [ "location", "fetch" ],
I am calling the startLocationUpdatesAsync function as such
` useEffect(() => {
var appLocation = undefined;
const startLocationTracking = async () => {
var opts = {
accuracy: Location.Accuracy.BestForNavigation,
distanceInterval: 1, //meters
};
appLocation = await Location.watchPositionAsync(opts, (location) => {
dispatch(setCurrentLocation(location.coords));
sendLocationToAPI(location);
});
const backgroundLocation = await Location.startLocationUpdatesAsync("background-location")
}`
I end up getting this error
Unhandled promise rejection: Error: Background Location has not been configured. To enable it, add locationtoUIBackgroundModes in Info.plist file.
I Do not know how to get rid of this, but I think I may have to expo eject and switch to cli. If anyone can help so I can avoid this it would be really helpful.
Related
I am building a live terminal in react js web app. On running local host , the terminal works fine but in production the code breaks with the below error on console.
ReferenceError: Cannot access 'r' before initialization
at new S (12320.cfcfec944a34227a5e11.bundle.js:1:135248)
at new b (12320.cfcfec944a34227a5e11.bundle.js:1:129539)
at new M (12320.cfcfec944a34227a5e11.bundle.js:1:27353)
at new r.exports.i.Terminal (12320.cfcfec944a34227a5e11.bundle.js:1:264753)
at 42919.8ded40c50ac3709077ea.bundle.js:1:578863
at C (main.503b8d39e2b5052d0fa6.bundle.js:1:1333747)
at Generator._invoke (main.503b8d39e2b5052d0fa6.bundle.js:1:1333500)
at Generator.next (main.503b8d39e2b5052d0fa6.bundle.js:1:1333927)
at r (main.503b8d39e2b5052d0fa6.bundle.js:1:1340419)
at o (main.503b8d39e2b5052d0fa6.bundle.js:1:1340602)
Here's my code.
const Termcomponent = () => {
useEffect(() => {
try {
const initTerm = async () => {
const {
Terminal
} = await import('xterm')
term = new Terminal({
screenKeys: true,
useStyle: true,
cursorBlink: true,
});
term.open(document.getElementById('x_terminal'));
}
initTerm();
} catch (ex) {
console.log(ex)
}
}, [])
return < div id = "x_terminal" > < /div>
}
Can anyone help me out here?
I am using webpack with this project.
Again, this logic works fine locally. but throws error on console in production.
I have a nextjs project, v12.1.3 with react v18.1.0. I use firebase realtime database to handle notifications into my project. It works in develop mode, but it doesn't in production (on built environment).
The errors I get are the following:
ReferenceError: emptyChildrenSingleton is not defined
at new bV (a198fdd9-b0625f5d1b77c03a.js:1:75705)
at new cF (a198fdd9-b0625f5d1b77c03a.js:1:95593)
at a198fdd9-b0625f5d1b77c03a.js:1:124619
at get _repo [as _repo] (a198fdd9-b0625f5d1b77c03a.js:1:124994)
at get _root [as _root] (a198fdd9-b0625f5d1b77c03a.js:1:125199)
at d_ (a198fdd9-b0625f5d1b77c03a.js:1:120499)
at n (index-493c2cb0fc06fe87.js:1:879)
at index-493c2cb0fc06fe87.js:1:826
at g0 (framework-47484f2290a3befd.js:1:91915)
at h9 (framework-47484f2290a3befd.js:1:113308)
[2022-06-13T21:12:40.922Z] #firebase/database: FIREBASE WARNING: Exception was thrown by user callback. TypeError: Cannot read properties of undefined (reading 'syncPointTree_')
at cM (http://localhost:3000/_next/static/chunks/a198fdd9-b0625f5d1b77c03a.js:1:99754)
at cI (http://localhost:3000/_next/static/chunks/a198fdd9-b0625f5d1b77c03a.js:1:97044)
at dC (http://localhost:3000/_next/static/chunks/a198fdd9-b0625f5d1b77c03a.js:1:109983)
at http://localhost:3000/_next/static/chunks/a198fdd9-b0625f5d1b77c03a.js:1:124197
at ap (http://localhost:3000/_next/static/chunks/a198fdd9-b0625f5d1b77c03a.js:1:3775)
at d.onServerInfoUpdate_ (http://localhost:3000/_next/static/chunks/a198fdd9-b0625f5d1b77c03a.js:1:124182)
at d.handleTimestamp_ (http://localhost:3000/_next/static/chunks/a198fdd9-b0625f5d1b77c03a.js:1:43294)
at d.onReady_ (http://localhost:3000/_next/static/chunks/a198fdd9-b0625f5d1b77c03a.js:1:39829)
at aM.onConnectionEstablished_ (http://localhost:3000/_next/static/chunks/a198fdd9-b0625f5d1b77c03a.js:1:26211)
at aM.onHandshake_ (http://localhost:3000/_next/static/chunks/a198fdd9-b0625f5d1b77c03a.js:1:25266)
Uncaught TypeError: Cannot read properties of undefined (reading 'syncPointTree_')
at cM (a198fdd9-b0625f5d1b77c03a.js:1:99754)
at cI (a198fdd9-b0625f5d1b77c03a.js:1:97044)
at dC (a198fdd9-b0625f5d1b77c03a.js:1:109983)
at a198fdd9-b0625f5d1b77c03a.js:1:124197
at ap (a198fdd9-b0625f5d1b77c03a.js:1:3775)
at d.onServerInfoUpdate_ (a198fdd9-b0625f5d1b77c03a.js:1:124182)
at d.handleTimestamp_ (a198fdd9-b0625f5d1b77c03a.js:1:43294)
at d.onReady_ (a198fdd9-b0625f5d1b77c03a.js:1:39829)
at aM.onConnectionEstablished_ (a198fdd9-b0625f5d1b77c03a.js:1:26211)
at aM.onHandshake_ (a198fdd9-b0625f5d1b77c03a.js:1:25266)
The integration is very basic: I write my notification client side and create them server side with firebase-admin. So the problem is reading from realtime database (in prod only).
The code is something like this (i simplified it)
const [textData, setTextData] = useState<any[]>([]);
useEffect(() => {
initFirebase();
fetchData();
}, []);
const fetchData = () => {
const db = getDatabase();
const starCountRef = ref(db, 'testData');
onValue(starCountRef, (snapshot) => {
const data = snapshot.val();
setTextData(
Object.entries(data || {}).map(
([key, value]: [key: string, value: any]) => ({
key,
text: value?.text,
})
)
);
});
};
Where initFirebase() is a classic:
import { getApps, initializeApp } from 'firebase/app';
const firebaseConfig = {
//my configs
};
// Initialize Firebase
const initFirebase = () => {
if (getApps().length && getApps.length > 0) return getApps()[0];
return initializeApp(firebaseConfig);
};
export default initFirebase;
It might seem all right. And it is. I made this into an empty project and it actually work. (here the repo without the error).
I tried to replicate the error I have in my repo and I did it. This is the repo with the error. The error must be something with the packages, react or nextjs version, but I don't get it.
For simplicity You can take a look directly to the repos. I think the code is all right.
How do you think this error can be fixed?
P.S. the repos are also deployed on vercel, so you can try also to see the logs. Of course you can also make a PR.
I found out the problem is the last version of next (12.1.3).
In particular swcMinify. In fact, I had this option set to true into the file next.config.js. I also found out that there are several issues about swcMinify in production build. So, in order to solve the problem I described above, you just have to turn off swcMinify, or remove it. After that everything seems to be all right.
Conclusion: This is not a firebase error.
I am creating an automation test using Appium and webdriverio:
const wdio = require("webdriverio");
const opts = {
path: "/wd/hub",
port: 4723,
capabilities: {
platformName: "Android",
platformVersion: "11",
deviceName: "Android Emulator",
app: "/path/to/myapk.apk",
automationName: "UiAutomator2",
autoGrantPermissions: true
}
};
async function main() {
const driver = await wdio.remote(opts);
const contexts = await driver.getContexts();
console.log("Contexts:", contexts);
await driver.deleteSession();
}
main();
The problem
When running tests I could see that I used to have two contexts:
NATIVE_APP
WEBVIEW_chrome (or similar, I do not remember exactly the value here)
I then made a change which switched contexts to the webview, there I got an error about the chrome driver not being found. That is when I installed it: npm install "appium-chromedriver".
I do not know if this is what made everything go babanas, but since then, everytime I test, I can only see the native context, no more webview context :(
More info
It is important to point out that I have modified my Android app to include this:
#Override
public void onCreate() {
super.onCreate();
WebView.setWebContentsDebuggingEnabled(true);
}
I can also start chrome://inspect and see the webview is there and even inspect it. But when running tests, the driver cannot see the webview context.
Why? How to fix this?
Turns out that I need to wait for a webview to show up in the app, so this works:
async function main() {
const driver = await wdio.remote(opts);
// Wait a few seconds so the webview properly loads
await new Promise(resolve => setTimeout(resolve, 5000));
const contexts = await driver.getContexts();
console.log("Contexts:", contexts);
await driver.deleteSession();
}
I'm using workbox-webpack-plugin to generate a service worker for me and I'm using copy-webpack-plugin move generated service worker files to the same directory as main.js. My next js config file goes like this:-
module.exports = {
webpack: (config, {isServer, buildId, dev, ...rest}) => {
if (dev) {
const devSwSrc = join(__dirname, "register-sw.js");
config.plugins.push(new CopyWebpackPlugin([devSwSrc]));
config.plugins.push(new GenerateSW({ ...defaultGenerateOpts }));
// Register SW
const originalEntry = config.entry;
config.entry = async () => {
const entries = await originalEntry();
const swCompiledPath = join(__dirname, 'register-sw-compiled.js');
if (entries['main.js'] && !entries['main.js'].includes(swCompiledPath)) {
let content = await readFile(require.resolve('./register-sw.js'), 'utf8');
await writeFile(swCompiledPath, content, 'utf8');
entries['main.js'].unshift(swCompiledPath);
}
return entries;
};
}
I'm trying to copying my service worker to the same dir as main.js which is chunk/static so that when it's fetched it should not return any error. But instead, I'm getting this error.
TypeError: Failed to register a ServiceWorker for scope ('[http://localhost:3000/](http://localhost:3000/)') with the script ('[http://localhost:3000/service-worker.js](http://localhost:3000/service-worker.js)'): A bad HTTP response code (404) was received when fetching the script.
I know this error is because it's not getting served from the same dir as main.js and I need to make some changes in copy-webpack-plugin in order to achieve that. Also I'm trying to avoid custom server.js file to server routes like /service-worker
Any help would be really appreciated. Thanks in advance
I am working on a React app created with create-react-app. I was having trouble creating a web worker in it so I posted a question here on SO: Creating a web worker inside React
I've found a solution, as written in the post above, to load a worker without ejecting the app and messing with the Webpack config. This is the code, from the post above:
// worker.js
const workercode = () => {
self.onmessage = function(e) {
console.log('Message received from main script');
const workerResult = 'Received from main: ' + (e.data);
console.log('Posting message back to main script');
self.postMessage(workerResult);
}
};
let code = workercode.toString();
code = code.substring(code.indexOf("{")+1, code.lastIndexOf("}"));
const blob = new Blob([code], {type: "application/javascript"});
const worker_script = URL.createObjectURL(blob);
module.exports = worker_script;
and in the file that uses the worker:
import worker_script from './worker';
const myWorker = new Worker(worker_script);
myWorker.onmessage = (m) => {
console.log("msg from worker: ", m.data);
};
myWorker.postMessage('im from main');
It works, however, I cannot seem to get importScripts to work. Even if I do this (outside onmessage or inside onmessage):
if (typeof importScripts === 'function') {
importScripts('myscript.js');
}
In that case, the if statement turns out to be true, but then fails on the actual import with the same error message 'importScripts' is not defined as if the if statement is a false positive, which doesn't sound right. I'd say this is a context issue and that the worker probably isn't loading properly (although it seems to work), but it's just a guess.
Any ideas what's happening here?
importScripts in a worker created from Blob works fine, at least in 2021 (react 17.0.2, react-scripts 4.0.3, Chrome 92). The imported script URL must be absolute because worker was created from Blob.
The original issue might have been a bug in webpack or the transpilation might have changed the code in a weird way.
const workercode = () => {
importScripts("https://example.com/extra.js");
console.log(self.extraValue); // 10
self.onmessage = function(e) {
console.log('Message received from main script');
...
}
};
// extra.js
self.extraValue = 10;
Looks like this is still broken in 2022 - Seems there is a regression coming down the dev pipeline (at least in Android WebView and possibly some dev/canary chrome verions.)
https://bugs.chromium.org/p/chromium/issues/detail?id=1078821