I get the following error:
Error in if (javaVersionNum != sparkJavaVersion) { :
missing value where TRUE/FALSE needed
when I try to start a SparkR session in Rstudio.
How can I possibly resolve this?
The first check if the JAVA_HOME is defined.
Sys.getenv("JAVA_HOME")
Surely it is not defined. Not all java versions work. Version 1.8 works. To define it and always be sure it works.
if (nchar(Sys.getenv("JAVA_HOME")) < 1) {
Sys.setenv(JAVA_HOME = "/Library/Java/JavaVirtualMachines/jdk1.8.0_192.jdk/Contents/Home/")
}
Related
The following code gives the error
Expected 'while' in 'do-while' loop
if let path = NSBundle.mainBundle().pathForResource("Chapters", ofType: "txt"){
do {
let stringFromFile = try String(contentsOfFile:path, encoding: NSUTF8StringEncoding)
var chapters: [String] = stringFromFile.componentsSeparatedByString("#")
chapters.removeAtIndex(0)
} catch {
print((error))
}
}
it was working fine before, but now it's giving me an error. Does anyone know why?
That code works for me as-is in the Playground with the appropriate Chapters.txt file in the Resources folder; XCode 7.1 Build 7B60. Did you try Shift-Command-K for a Clean Build?
Something does not seem right with your error message. With Swift 2.0, there are no more do-while loops. They have been replaced by repeat-while loops instead. As your code snippet shows, do has been repurposed for do-try-catch error handling.
this is a simple recursion function
func recursion(parameter : Double)
{
if parameter < 12
{
recursion(parameter + 1)
}
print(parameter)
}
when i am trying to put a simple value for example 0 or 1
recursion(0)
i get a compile error saying Missing argument for #1 in call any idea why this is happening?
btw if i change the function to
func recursion(parameter : Double)
{
if parameter > 1
{
recursion(parameter - 1)
}
print(parameter)
}
everything works fine
any ideas? i am using Xcode 7 beta
Your code works fine, just make a Clean & Build and then try it again and the initial compile error should disappear. Remember that Xcode 7 is still in Beta, Apple is working to fix this kind of false compile errors properly.
I hope this help you.
I have the following two settings in my elasticsearch.yml file. They are the only ones that pull from environment variables.
cloud.aws.access_key: ${AWS_ACCESS_KEY_ID}
cloud.aws.secret_key: ${AWS_SECRET_KEY}
When I restart elasticsearch to load these from the environment, I get an error that it can't resolve them. I've tested it and it will not resolve either, so this error applies to both (it just fails on the bottom one first)
- IllegalArgumentException[Could not resolve placeholder 'AWS_SECRET_KEY']
java.lang.IllegalArgumentException: Could not resolve placeholder 'AWS_SECRET_KEY'
at org.elasticsearch.common.property.PropertyPlaceholder.parseStringValue(PropertyPlaceholder.java:124)
at org.elasticsearch.common.property.PropertyPlaceholder.replacePlaceholders(PropertyPlaceholder.java:81)
at org.elasticsearch.common.settings.ImmutableSettings$Builder.replacePropertyPlaceholders(ImmutableSettings.java:1060)
at org.elasticsearch.node.internal.InternalSettingsPreparer.prepareSettings(InternalSettingsPreparer.java:101)
at org.elasticsearch.bootstrap.Bootstrap.initialSettings(Bootstrap.java:106)
at org.elasticsearch.bootstrap.Bootstrap.main(Bootstrap.java:177)
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:32)
I did some investigating through elasticsearch's code repository on github and discovered this bit of code that pulls from the environment variables.
ImmutableSettings.java#resolvePlaceholder from elasticsearch#github
Namely. the lines inside that function that should be pulling from the environment variables are these one:
Code from resolvePlaceholder that pulls out environment variables
However, after resolvePlaceholder is run from inside function PropertyPlaceholder#parseStringValue, the System.getenv call must be returning null as that is the only way for that error to be thrown.
I wrote a simple test program that is essentially a copy of ImmutableSettings.java#resolvePlaceholder to test that System.getenv was pulling out the environment variables correctly on my system. This in fact returns the values I expect.
public class Cool {
public static void main(String[] args) {
System.out.println(resolvePlaceholder(args[0]));
}
public static String resolvePlaceholder(String placeholderName) {
if (placeholderName.startsWith("env.")) {
// explicit env var prefix
System.out.println("1: placeholderName.startsWith(\"env.\")");
return System.getenv(placeholderName.substring("env.".length()));
}
String value = System.getProperty(placeholderName);
if (value != null) {
System.out.println("2: System.getProperty");
return value;
}
value = System.getenv(placeholderName);
if (value != null) {
System.out.println("3: System.getenv");
return value;
}
return "Map should've had it";
}
}
When run, this is the output, showing we are getting the set environment variables (keys hidden for obvious reasons):
[ec2-user#ip-172-31-34-195 ~]$ java Cool AWS_SECRET_KEY
3: System.getenv
XXXXXXXXXXXXXXXXXX
[ec2-user#ip-172-31-34-195 ~]$ java Cool AWS_ACCESS_KEY_ID
3: System.getenv
XXXXXXXXXXXXXXXXXX
What is it about elasticsearch that isn't able to parse my environment variables from elasticsearch.yml? I've done quite a bit of digging at this point but I'm sure there is a simple solution around the corner. Any help would be very much appreciated.
I figured out the issue.
As I am running elasticsearch as a linux service, rather than a shell application, it has access to no environment variables except for a very select few.
I added the following line to the end of /etc/sysconfig/elasticsearch to load the environment variables I wanted available to the program:
. /path/to/environment/variables
I am using gradle to download the selenium chrome driver from maven
webtestsCompile 'org.seleniumhq.selenium:selenium-chrome-driver:2.32.0'
I am trying to use this directly and I see that I get this error :
Caused by:
java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.chrome.driver system property; for more information, see http://code.google.com/p/selenium/wiki/ChromeDriver. The latest version can be downloaded from http://code.google.com/p/chromedriver/downloads/list
I have looked up a couple of questions from stack-overflow and other places it requires me to set the value of the property webdriver.chrome.driver to the location where I have downloaded with some-thing like this :
System.setProperty("webdriver.chrome.driver", "path to chrome-driver");
I am wondering what is the best way to go about this ?
EDIT 1:
I verified the java.class.path a snippet of this path looks like this :
/home/bhavya/.gradle/caches/artifacts-26/filestore/org.seleniumhq.selenium/selenium-chrome-driver/2.32.0/jar/14a4e8e32a4129c682c67381f5d7bf11f2327e1/selenium-chrome-driver-2.32.0.jar
This looks like the selenium-chrome-driver is present in the java.class.path.
Edit 2 :
I would want the chrome driver to work irrespective of the operating system that I am using, currently I am on a ubuntu box but a lot of this will get tested on a windows box. When I hard coded the value of the webdriver.chrome.driver to the value in EDIT 1, I am facing the following issue :
java.lang.IllegalStateException: The driver is not executable: /home/bhavya/.gradle/caches/artifacts-26/filestore/org.seleniumhq.selenium/selenium-chrome-driver/2.32.0/jar/14a4e8e32a4129c682c67381f5d7bf11f2327e1/selenium-chrome-driver-2.32.0.jar
Edit 3 :
Task within which I am running the test suite --
task webs(type: Test, dependsOn: updateNodeModules) {
testClassesDir = sourceSets.webtests.output.classesDir
classpath = sourceSets.webtests.runtimeClasspath
def javaHomeBin = new File(System.getProperty("java.home"), "bin");
def javaExec = new File(javaHomeBin, "java").getAbsolutePath();
systemProperties['jar.path'] = jar.archivePath
if(project.hasProperty('url')){
println" url passed as variable is $url"
systemProperties["selenium.webdriver.url"] = "$url"
}
systemProperties["selenium.webbrowser.type"] = "firefox"
if(project.hasProperty('browser')){
println "the browser passed is $browser"
systemProperties["selenium.webbrowser.type"] = "$browser"
}
include '**/UserEditControllerWebTest.class'
doFirst {
println " iterator is $it"
def chrome=configurations.testRuntime.find {
it.name.contains("selenium-chrome-driver")
}.path
println " chrome driver path is $chrome"
systemProperties["webdriver.chrome.driver"]= "$chrome"
}
}
Assuming that you need to set this system property for your tests, you can do something like:
test.doFirst {
systemProperty "webdriver.chrome.driver",
classpath.find {
it.name.contains("selenium-chrome-driver")
}.path
}
I am trying to call cudppSort to sort a set of keys/values. I'm using the following code to set up the sort algorithm:
CUDPPConfiguration config;
config.op = CUDPP_ADD;
config.datatype = CUDPP_UINT;
config.algorithm = CUDPP_SORT_RADIX;
config.options = CUDPP_OPTION_KEY_VALUE_PAIRS | CUDPP_OPTION_FORWARD | CUDPP_OPTION_EXCLUSIVE;
CUDPPHandle planHandle;
CUDPPResult result = cudppPlan(&planHandle, config, number_points, 1, 0);
if (CUDPP_SUCCESS != result) {
printf("ERROR creating CUDPPPlan\n");
exit(-1);
}
The program exits, however on the line:
CUDPPResult result = cudppPlan(&planHandle, config, number_points, 1, 0);
and prints to stdout:
Cuda error: allocScanStorage in file 'c:/the/path/to/release1.1/cudpp/src/app/scan_app.cu' in line 279 : invalid configuration argument.
I looked at the line in scan_app.cu. It is,
CUT_CHECK_ERROR("allocScanStorage");
So apparently my configuration has an error that is causing the allocScanStorage to bomb out. There are only two calls to CUDA_SAFE_CALL in the function and I don't see a reason why either has anything to do with the configuration.
What is wrong with my configuration?
So that this doesn't sit around as an unanswered question (I'm not sure if this is the right SO etiquette but it seems like an answered question shouldn't sit around unanswered...), I'm copying the comment I made above here as an answer since it was the solution:
I figured this out (I'm still learning CUDA at the moment.) Because the error checking is asynchronous errors can show up in strange places if you don't check for them from time to time. My code had caused an error before I called cudppPlan but because I didn't check for errors the cudppPlan reported the error as if it was in cudppPlan.