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I tried to set up the selenium webdriver with a geckodriver on my raspberry pi 3 in java. As I tried to launch an instance of FirefoxDriver() I receive the following error :

Exception in thread "main"
org.openqa.selenium.SessionNotCreatedException: Unable to find a
matching set of capabilities Build info: version: '3.9.1', revision:
'63f7b50', time: '2018-02-07T22:42:22.379Z' System info: host: '****',
ip: '****', os.name: 'Linux', os.arch: 'arm', os.version:
'4.4.38-v7+', java.version: '1.8.0_151' Driver info: driver.version:
FirefoxDriver remote stacktrace: stack backtrace: 0: 0x54ba9797 -
backtrace::backtrace::trace::hc4bd56a2f176de7e 1: 0x54ba98ff -
backtrace::capture::Backtrace::new::he3b2a15d39027c46 2: 0x54b03e5f
- webdriver::error::WebDriverError::new::h81babdd86c977032 3: 0x54b04c8f -
geckodriver::marionette::MarionetteHandler::create_connection::hf0532ddb9e159684
4: 0x54aed4cb - >::run::h2119c674d7b88193 5: 0x54acbcbf -
std::sys_common::backtrace::__rust_begin_short_backtrace::h21d98a9ff86d4c25
6: 0x54ad31cf - std::panicking::try::do_call::h5cff0c9b18cfdbba 7:
0x54c52237 - panic_unwind::__rust_maybe_catch_panic
at /checkout/src/libpanic_unwind/lib.rs:99 8: 0x54ae59e7 - >::call_box::h413eb1d9d9f1c473 9: 0x54c4c0d3
- alloc::boxed::impl::call_once<(),()>
at /checkout/src/liballoc/boxed.rs:692
- std::sys_common::thread::start_thread
at /checkout/src/libstd/sys_common/thread.rs:21
- std::sys::imp::thread::impl::new::thread_start
at /checkout/src/libstd/sys/unix/thread.rs:84 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
org.openqa.selenium.remote.W3CHandshakeResponse.lambda$new$0(W3CHandshakeResponse.java:57)
at
org.openqa.selenium.remote.W3CHandshakeResponse.lambda$getResponseFunction$2(W3CHandshakeResponse.java:104)
at
org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession$0(ProtocolHandshake.java:123)
at
java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at
java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
at
java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
at
java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:498)
at
java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
at
java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at
java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
at
java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at
java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464)
at
org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:126)
at
org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:73)
at
org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:138)
at
org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
at
org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:601)
at
org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:219)
at
org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:142)
at
org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:120)
at
org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:98)
at simplePack.Main.main(Main.java:13)

Here is my simple code which causes the error:

WebDriver driver = new FirefoxDriver(); 

Does anyone of you knows the answer concerning this fault?

Thank you very much for your answers!

With best regards,
Philipp

I have also face the same issue and I have resolved it by setting desired capabilities for gecko driver.

Please follow the code: -

DesiredCapabilities capabilities = DesiredCapabilities.firefox();
 capabilities.setCapability("marionette", true);
 WebDriver driver = new FirefoxDriver(capabilities);

It might help you out.