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  1. Asked: July 24, 2022In:

    position_dodge requires non-overlapping x intervals – How to fix?

    Best Answer
    dttutoria Expert

    Solution: Consider making your decade variable (x) become a factor. You shouldn't use X$Decade because you've already loaded X as the dataset in ggplot. ggplot(X) + geom_bar(aes(factor(Decade), fill=factor(Motivation)), position='fill') That may be helpful for users to fix the position_dodge requireRead more

    Solution:

    Consider making your decade variable (x) become a factor. You shouldn’t use X$Decade because you’ve already loaded X as the dataset in ggplot.

    ggplot(X) +
geom_bar(aes(factor(Decade), fill=factor(Motivation)), position='fill')

    That may be helpful for users to fix the position_dodge requires non-overlapping x intervals issue.

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  2. Asked: July 24, 2022In:

    How to solve pg::connectionbad: fe_sendauth: no password supplied problem?

    Best Answer
    dttutoria Expert

    The cause: According to your pg_hba.conf, localhost as a host indicates a TCP connection, which indicates the authentication method is md5 (password demanded): # IPv4 local connections: host all all 127.0.0.1/32 md5 # IPv6 local connections: host all all ::1/128 md5 Solution: You must establish a coRead more

    The cause:

    According to your pg_hba.conf, localhost as a host indicates a TCP connection, which indicates the authentication method is md5 (password demanded):

    # IPv4 local connections:
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5

    Solution:

    You must establish a connection using Unix domain sockets in order to use the peer method, and as you appear to be running a debian-like operating system, you must enter /var/run/postgresql in the host field, otherwise, nothing is impacted.

    EDIT: The syntax might be as follows when utilizing database URIs:

    • test: “postgresql://localhost/myapp_test” for localhost.
    • test: “postgresql:///myapp_test” for the pre – defined Unix socket domain (host field left unfilled).
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  3. Asked: July 23, 2022In:

    How to fix parseerror: ‘import’ and ‘export’ may appear only with ‘sourcetype: module’?

    Best Answer
    dttutoria Expert
    This answer was edited.

    The cause: This issue occurs because the test1.js file's javascript source code syntax is not supported by Browserify. The JS code may be written in ES6+ style. Solution: Therefore, you ought to use Babel to transcompile the javascript code to a lower syntax that Browserify accepts, like es2015. ItRead more

    The cause: This issue occurs because the test1.js file’s javascript source code syntax is not supported by Browserify. The JS code may be written in ES6+ style. Solution: Therefore, you ought to use Babel to transcompile the javascript code to a lower syntax that Browserify accepts, like es2015. It can fix the error parseerror: ‘import’ and ‘export’ may appear only with ‘sourcetype: module’.

    1. Set up the Babel Modules. – To generate a package.json file in the current folder, open a terminal and execute the command npm init. – To install the plugin modules, execute the command npm install –save-dev @babel/core @babel/cli @babel/preset-env in the terminal. – To verify the module installation, use the commands npm list @babel/core, npm list @babel/cli, and npm list @babel/preset-env. – The aforementioned babel plugin modules are also included in the project’s package.json file like the following: 
      {
"name": "browserify",
"version": "1.0.0",
"main": "index.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1"
},
"author": "",
"license": "ISC",
"description": "",
"devDependencies": {
"@babel/cli": "^7.17.10",
"@babel/core": "^7.18.2",
"@babel/preset-env": "^7.18.2"
}
}
    2. Make a Babel configuration file. – Make a babel.config.json configuration file in the project directory. – The file babel.config.json should now contain the JSON source code below. 
      {
"presets": [
[
"@babel/preset-env",
{
/*
Define the targets web browsers.
You can ignore this settings for all web browsers.

"targets": {
"edge": "17",
"firefox": "60",
"chrome": "67",
"safari": "11.1"
},
*/
"useBuiltIns": "usage",
"corejs": "3.6.5"
}
]
]
}
    3. Transcompile different JavaScript source files into one by using the Babel command. – Execute the command./node modules/.bin/babel js -out-dir lib in the project folder from the terminal. – The aforementioned command will transcompile all of the javascript files in the js folder to the lib folder and create a lib folder in the current project folder. 
      ├─js
│  ├─test1.js
│  └─test2.js
├─lib
│  ├─test1.js
│  └─test2.js

      – The javascript source code for the files lib/test1.js and lib/test2.js may be seen on an earlier web browser by opening them in a text editor. 

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  4. Asked: July 22, 2022In:

    How to fix oserror: [winerror 10038] an operation was attempted on something that is not a socket?

    Best Answer
    dttutoria Expert

    The cause: On Windows Python, you get the error while executing InteractiveBrokers API's disconnect(): The Interactive Brokers API class has a mistake that is the cause of oserror: [winerror 10038] an operation was attempted on something that is not a socket problem. Solution: Change C:\TWS API\sourRead more

    The cause:

    On Windows Python, you get the error while executing InteractiveBrokers API’s disconnect():

    The Interactive Brokers API class has a mistake that is the cause of oserror: [winerror 10038] an operation was attempted on something that is not a socket problem.

    Solution: Change C:\TWS API\source\pythonclient\ibapi\reader.py and install new to resolve the issue and prevent an error from being unnecessarily raised:

    To resolve the issue, substitute this code:

    def run(self):
try:
buf = b""
while self.conn.isConnected():

try:
data = self.conn.recvMsg()
logger.debug("reader loop, recvd size %d", len(data))
buf += data

except OSError as err:
#If connection is disconnected, Windows will generate error 10038
if err.errno == 10038:

#Wait up to 1 second for disconnect confirmation
waitUntil = time.time() + 1
while time.time() < waitUntil:
if not self.conn.isConnected():
break
time.sleep(.1)

if not self.conn.isConnected():
logger.debug("Ignoring OSError: {0}".format(err))
break

#Disconnect wasn't received or error != 10038
raise

while len(buf) > 0:
(size, msg, buf) = comm.read_msg(buf)
#logger.debug("resp %s", buf.decode('ascii'))
logger.debug("size:%d msg.size:%d msg:|%s| buf:%s|", size,
len(msg), buf, "|")

if msg:
self.msg_queue.put(msg)
else:
logger.debug("more incoming packet(s) are needed ")
break

logger.debug("EReader thread finished")
except:
logger.exception('unhandled exception in EReader thread')
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  5. Asked: July 21, 2022In:

    Which is the way to fix ora-00845: memory_target not supported on this system error?

    Best Answer
    dttutoria Expert

    The cause:  Linux's /dev/shm is used by the new Automatic Memory Management function to manage SGA and PGA. The issues happen if /dev/shm is mounted wrongly or if MEMORY TARGET or MEMORY MAX TARGET are specified with values greater than the configured /dev/shm size. Solution: Do as the following insRead more

    The cause: 

    Linux’s /dev/shm is used by the new Automatic Memory Management function to manage SGA and PGA. The issues happen if /dev/shm is mounted wrongly or if MEMORY TARGET or MEMORY MAX TARGET are specified with values greater than the configured /dev/shm size.

    Solution:

    Do as the following instruction to fix ora-00845: memory_target not supported on this system error.

    Verify that ORACLE HOME is properly set. When it is not set properly, this error can occasionally occur.

    Make sure the /dev/shm size is set to a size that is sufficient, as in:

    # mount -t tmpfs shmfs -o size=7g /dev/shm

    The shared memory device in this instance has a 7GB configuration.

    Attack an entry for it to the /etc/fstab mount table to ensure that the same change is maintained after a system restart, as in:

    shmfs /dev/shm tmpfs size=7g 0
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  6. Asked: July 21, 2022In:

    How can I solve the error: only the original thread that created a view hierarchy can touch its views?

    Best Answer
    dttutoria Expert

    Solution: To fix only the original thread that created a view hierarchy can touch its views problem, I recommend the ways below: Solution 1: The section of the background task that changes the user interface must be moved to the main thread. For this, there is a helpful piece of code: runOnUiThread(Read more

    Solution: To fix only the original thread that created a view hierarchy can touch its views problem, I recommend the ways below:

    Solution 1: The section of the background task that changes the user interface must be moved to the main thread. For this, there is a helpful piece of code:

    runOnUiThread(new Runnable() {

@Override
public void run() {

// Stuff that updates the UI

}
});

    Simply nest this within the function that executes in the background, and then paste any update-implementing code in the block’s middle. Keep the amount of code you provide as minimal as possible to avoid defeating the aim of the background thread.

    Solution 2:

    Add runOnUiThread( new Runnable(){ .. inner run():

    thread = new Thread(){
@Override
public void run() {
try {
synchronized (this) {
wait(5000);

runOnUiThread(new Runnable() {
@Override
public void run() {
dbloadingInfo.setVisibility(View.VISIBLE);
bar.setVisibility(View.INVISIBLE);
loadingText.setVisibility(View.INVISIBLE);
}
});

}
} catch (InterruptedException e) {
e.printStackTrace();
}
Intent mainActivity = new Intent(getApplicationContext(),MainActivity.class);
startActivity(mainActivity);
};
};
thread.start();

     

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  7. Asked: July 16, 2022In:

    Which way to fix no inputs were found in config file error?

    Best Answer
    dttutoria Expert
    This answer was edited.

    The cause: The tsconfig.json file that Astro automatically includes caused them to encounter an error "no inputs were found in config file" in VS Code. Solution: First, VS Code should be restarted. If the above step doesn't work, add an empty file.ts file to the same folder in which the tsconfig.jsoRead more

    The cause: The tsconfig.json file that Astro automatically includes caused them to encounter an error “no inputs were found in config file” in VS Code.

    Solution: First, VS Code should be restarted. If the above step doesn’t work, add an empty file.ts file to the same folder in which the tsconfig.json file locates. Otherwise, remove tsconfig.json. Unless you intend to use TypeScript in which case you may configure it by adding include to point to the TypeScript files in your project: From

    {
  "compilerOptions": {
    "moduleResolution": "node"
  }
}

    to

    {
  "compilerOptions": {
      "moduleResolution": "node"
   },
  "include": [
     "./src/**/*.ts"
   ]
}
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  8. Asked: July 16, 2022In:

    no http resource was found that matches the request uri – How to fix?

    Best Answer
    dttutoria Expert

    Solution: Here are a few solutions that I hope can help to fix the error no http resource was found that matches the request uri. Solution 1. Have you made sure that the config.MapHttpAttributeRoutes();  for the api is enabled for attribute routing? The following query string should be used to accesRead more

    Solution:

    Here are a few solutions that I hope can help to fix the error no http resource was found that matches the request uri.

    Solution 1.

    Have you made sure that the config.MapHttpAttributeRoutes();  for the api is enabled for attribute routing?

    The following query string should be used to access it using your current route: http://localhost:50684/api/albums/history?type=test&id=1 

    Then add the [FromUri] decoration to the parameters

    [HttpGet]
[Route("api/albums/history/")]
public IHttpActionResult GetHistory([FromUri]string type,[FromUri]int id)
{
//api stuff
}

    or to use route parameters to access the api

    http://localhost:50684/api/albums/history/test/1 

    [HttpGet]
[Route("api/albums/history/{type}/{id}")]
public IHttpActionResult GetHistory(string type,int id)
{
//api stuff
}

    Solution 2:

    The code should be like this:

    [Authorize]
public class AlbumsController : ApiController
{
[HttpGet]
[Route("api/albums/history/")]
public IHttpActionResult GetHistory(string type,int id)
{
//api stuff
}
}

    Ensure that your Postman method is GET:
    http://localhost:50684/api/album/history?type=test&id=1

    Solution 3.

    Just adjust this:

    AllowInsecureHttp = true

    public void ConfigureAuth(IAppBuilder app)
{
app.CreatePerOwinContext(ApplicationDbContext.Create);
app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
app.UseCookieAuthentication(new CookieAuthenticationOptions());
app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);
PublicClientId = "self";
OAuthOptions = new OAuthAuthorizationServerOptions
{
TokenEndpointPath = new PathString("/api/Token"),
Provider = new ApplicationOAuthProvider(PublicClientId),
AuthorizeEndpointPath = new PathString("/api/Account/ExternalLogin"),
AccessTokenExpireTimeSpan = TimeSpan.FromDays(1),
AllowInsecureHttp = true
};
app.UseOAuthBearerTokens(OAuthOptions);
}
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  9. Asked: July 15, 2022In:

    How to fix the error: no function matches the given name and argument types. you might need to add explicit type casts.?

    Best Answer
    dttutoria Expert

    The cause: Implicit translation from timestamp to date data type is not supported by Postgres. The date type in Postgres differs from the date type in Oracle. That is why the error "no function matches the given name and argument types. you might need to add explicit type casts." occurs. Solution: CRead more

    The cause: Implicit translation from timestamp to date data type is not supported by Postgres. The date type in Postgres differs from the date type in Oracle. That is why the error “no function matches the given name and argument types. you might need to add explicit type casts.” occurs.

    Solution:

    CREATE OR REPLACE FUNCTION public.test(v date)
RETURNS void
LANGUAGE plpgsql
AS $function$
BEGIN
RAISE NOTICE '%', v;
END;
$function$

postgres=# SELECT test(now());
ERROR: function test(timestamp with time zone) does not exist
LINE 1: SELECT test(now());
^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
postgres=# SELECT test(current_date);
NOTICE: 2019-11-14
+------+
| test |
+------+
| |
+------+
(1 row)

postgres=# SELECT test(now()::date);
NOTICE: 2019-11-14
+------+
| test |
+------+
| |
+------+
(1 row)

    date conversions from timestamps (the result type of the now() function) are failing. It is by default disallowed. As a result, you could either enforce it (by explicitly casting) or utilise the pseudo constant current_date, which gives back date type and eliminates the need for conversion.

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  10. Asked: July 15, 2022In:

    How to solve no content to map due to end-of-input error?

    Best Answer
    dttutoria Expert
    This answer was edited.

    The cause:  In most cases, the issue was brought on by my sending the ObjectMapper.readValue call a null InputStream. In another scenario, the client side was the issue. I didn't shut the server stream I was writing to by accident. Solution: Do not pass an empty InputStream to the call. Closed streaRead more

    The cause:  In most cases, the issue was brought on by my sending the ObjectMapper.readValue call a null InputStream. In another scenario, the client side was the issue. I didn’t shut the server stream I was writing to by accident.

    Solution:

    • Do not pass an empty InputStream to the call.
    • Closed stream and it will worked successful
    OutputStream out = new BufferedOutputStream(urlConnection.getOutputStream()); 
out.write(jsonstring.getBytes()); 
out.close() ; //This is what I did
    • Other way: Just run this
    import com.fasterxml.jackson.core.JsonParser.Feature;
import com.fasterxml.jackson.databind.ObjectMapper;
StatusResponses loginValidator = null;
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.configure(Feature.AUTO_CLOSE_SOURCE, true);
try {
String res = result.getResponseAsString();//{"status":"true","msg":"success"}
loginValidator = objectMapper.readValue(res, StatusResponses.class);//replaced result.getResponseAsString() with res
} catch (Exception e) {
e.printStackTrace();
}
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