R Language Error: Error in RStudioGD() : Shadow graphics device error: r error 4 (R code execution error)
Solution:
Solution 1: Ctrl + Shift + F10 to restart your session
solution 2: run the following code directly to regenerate the temporary file without restarting (recommended)
dir.create(tempdir())Maven compilation exception
Failed to execute goal org.apache.maven.plugins:
maven-pmd-plugin:3.8:check (default)
on project xxx: You have 133 PMD violations.
Reason: PMD verification is added to Maven to judge whether your code complies with the specification. If it does not comply with the specification, an error will be reported when Maven compiles
Solution: how can this specification be removed? Just execute the following command, which can ignore the PMD check
mvn clean install -Dpmd.skip=true -Dcheckstyle.skip=true
Of course, when Maven compiles, there will be unit test execution, so how to ignore unit test execution?Just execute the following command
mvn clean install -Dmaven.test.skip=true
Therefore, as long as you want to ignore it, you can execute a command directly behind it
in a word:
In order to be compatible with errors, the following methods can be performed:
mvn clean install -Dpmd.skip=true -Dcheckstyle.skip=true -Dmaven.test.skip=true
When compiling GitHub project, you may encounter the following errors:
CMake Error at CMakeLists.txt:92 (add_subdirectory):
The source directory
xxxxx
CMake Error at src/Runtime/CMakeLists.txt:56 (pybind11_add_module):
Unknown CMake command "pybind11_add_module".
This is generally a lack of third-party dependencies. You can try the following command:
git submodule init && git submodule update
Reference:
https://stackoverflow.com/questions/59291154/cmake-error-at-cmakelists-txt994-add-subdirectory
error 1
WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128
The length of the largest listening queue of each port does not meet this high-load environment and needs to be adjusted
Solution:echo 2048 > /proc/sys/net/core/somaxconn
error 2
WARNING overcommit_memory is set to 0! Background save may fail under low memory condition
Memory excess warning, setting the current memory to 0 will cause the background save to fail
Solution:
echo "vm.overcommit_memory=1" > /etc/sysctl.conf
#Refresh the configuration file to ensure it takes effect
sysctl vm.overcommit_memory=1
error 3
WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis
Enabling transparent huge page (THP) support in the kernel will cause Redis delays and memory usage issues
Solution:
echo never > /sys/kernel/mm/transparent_hugepage/enabled
error 4
Error condition on socket for SYNC: Connection reset by peer
The connection was refused because the main server may have bound its own IP address
Solution:
#Modify the master node configuration file
vim /etc/redis/6379.conf
bind 0.0.0.0 #Modify the listening address on line 70 to 0.0.0.0
Solution:
git config --global http.proxy
git config --global --unset http.proxy
Reference: https://stackoverflow.com/questions/30537386/connection-error-with-cocoapods-proxy-connect-aborted
Problem:
keyerror ‘ACC’ is reported when using keras
Reason:
this is a keras version problem. ACC and accuracy are intended to be the same, but different keras versions use different names, so they need to be replaced. val_ So is acc.
Solution:
Print history keyword
Print (history. History. Keys())
change the error part to the printed “K” and “V”“
09:06:12.163 [http-nio-9207-exec-6] ERROR c.s.p.c.GlobalExceptionHandler - [exceptionHandler,90] - 发生其他异常，原因是；{}
org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize instance of `java.lang.String` out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `java.lang.String` out of START_OBJECT token
at [Source: (PushbackInputStream); line: 1, column: 2] (through reference chain: java.lang.Object[][0])
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:285)
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.read(AbstractJackson2HttpMessageConverter.java:243)
at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodArgumentResolver.readWithMessageConverters(AbstractMessageConverterMethodArgumentResolver.java:205)
at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.readWithMessageConverters(RequestResponseBodyMethodProcessor.java:158)
at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.resolveArgument(RequestResponseBodyMethodProcessor.java:131)
at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:121)
at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:167)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at com.signature.pc.config.HttpServletRequestReplacedFilter.doFilter(HttpServletRequestReplacedFilter.java:35)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:888)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1597)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `java.lang.String` out of START_OBJECT token
at [Source: (PushbackInputStream); line: 1, column: 2] (through reference chain: java.lang.Object[][0])
at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:59)
at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1468)
at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1242)
at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1148)
at com.fasterxml.jackson.databind.deser.std.StdDeserializer._parseString(StdDeserializer.java:615)
at com.fasterxml.jackson.databind.deser.std.StringArrayDeserializer.deserialize(StringArrayDeserializer.java:157)
at com.fasterxml.jackson.databind.deser.std.StringArrayDeserializer.deserialize(StringArrayDeserializer.java:21)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4526)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3521)
at org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter.readJavaType(AbstractJackson2HttpMessageConverter.java:274)
... 58 common frames omitted
Interface input parameter format:
Front end parameter transfer format
[{"id":"26a0eac8-edb1-43be-9869-4f7c45c0693a"},
{"id":"E3ECF542585749B996EC0C13907E7D94"}]
.
.
.
the problem is obvious. The format of the value passed by the front end is incorrect. What we need is an array of string type, while the data passed by the front end is object type data.
The front-end transmission parameter is changed to:
[
"30lkbc2b-1c80-46c3-857e-e934e9842c08",
"E3ECF542585749B996EC0C13907E7D94"
]
That’s it
The MySQL table structure is as follows:
mysql> select * from fruits ;
+------+------+------------+---------+
| f_id | s_id | f_name | f_price |
+------+------+------------+---------+
| a1 | 101 | apple | 5.20 |
| a2 | 103 | apricot | 2.20 |
| b1 | 101 | blackberry | 10.20 |
| b2 | 104 | berry | 7.60 |
| b5 | 107 | xxxx | 3.60 |
| bs1 | 102 | orange | 11.20 |
| bs2 | 105 | melon | 8.20 |
| c0 | 101 | cherry | 3.20 |
| l2 | 104 | lemon | 6.40 |
| m1 | 106 | mango | 15.70 |
| m2 | 105 | xbabay | 2.60 |
| m3 | 105 | xxtt | 11.60 |
| o2 | 103 | coconut | 9.20 |
| t1 | 102 | banana | 10.30 |
| t2 | 102 | grape | 5.30 |
| t4 | 107 | xbababa | 3.60 |
+------+------+------------+---------+
According to s_ ID groups the table data, and the error message is as follows
mysql> select * from fruits group by s_id;
ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column
'exercise.fruits.f_id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible
with sql_mode=only_full_group_by
Query SQL_Mode mode
mysql> select @@session.sql_mode;
+-------------------------------------------------------------------------------------------------------------------------------------------+
| @@session.sql_mode |
+-------------------------------------------------------------------------------------------------------------------------------------------+
| ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,
ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION |
+-------------------------------------------------------------------------------------------------------------------------------------------+
Reason: only is added after MySQL 5.7_full_group_By roughly means that the column you select must be included in group by (for example, select a, B from table, group by a, B;), or you are an aggregate column, such as sum(), avg(), max(). The
official website says that SQL mode affects the syntax supported by MySQL and the data verification checks it performs, This makes it easier to use MySQL in different environments and other database servers
Official website reference link: https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html#sql-mode-setting
Solution:
1. It is found that the set global setting in MySQL does not take effect and cannot be set under my.cnf
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
2. Query again is normal
mysql> select * from fruits group by s_id,f_name;
+------+------+------------+---------+
| f_id | s_id | f_name | f_price |
+------+------+------------+---------+
| a1 | 101 | apple | 5.20 |
| b1 | 101 | blackberry | 10.20 |
| c0 | 101 | cherry | 3.20 |
| t1 | 102 | banana | 10.30 |
| t2 | 102 | grape | 5.30 |
| bs1 | 102 | orange | 11.20 |
| a2 | 103 | apricot | 2.20 |
| o2 | 103 | coconut | 9.20 |
| b2 | 104 | berry | 7.60 |
| l2 | 104 | lemon | 6.40 |
| bs2 | 105 | melon | 8.20 |
| m2 | 105 | xbabay | 2.60 |
| m3 | 105 | xxtt | 11.60 |
| m1 | 106 | mango | 15.70 |
| t4 | 107 | xbababa | 3.60 |
| b5 | 107 | xxxx | 3.60 |
+------+------+------------+---------+
sql_Mode interpretation:
ONLY_FULL_GROUP_BY: For the GROUP BY aggregation operation, if the column in the SELECT is not in the GROUP
Appears in BY, then this SQL is illegal, because the column is not in the GROUP BY clause
NO_AUTO_VALUE_ON_ZERO: This value affects the insertion of self-growing columns. By default, inserting 0 or NULL means that the next self-increasing value is generated. If the user
Hope that the inserted value is 0, and the column is self-increasing, then this option is useful.
STRICT_TRANS_TABLES: In this mode, if a value cannot be inserted into a transaction table, the current operation is interrupted, and there is no restriction on non-transactional tables
NO_ZERO_IN_DATE: In strict mode, the date and month are not allowed to be zero
NO_ZERO_DATE: Set this value. The mysql database does not allow the insertion of a zero date. Inserting a zero date will throw an error instead of a warning.
ERROR_FOR_DIVISION_BY_ZERO: During INSERT or UPDATE, if the data is divided by zero, an error is generated instead of a warning. like
If the mode is not given, then MySQL returns NULL when the data is divided by zero
NO_AUTO_CREATE_USER: prohibit GRANT from creating users with empty passwords
NO_ENGINE_SUBSTITUTION:
If the required storage engine is disabled or not compiled, then an error is thrown. When this value is not set, replace with the default storage engine and throw an exception
PIPES_AS_CONCAT:
Treat "||" as a string concatenation operator instead of an OR operator, which is the same as the Oracle database and similar to the string concatenation function Concat
ANSI_QUOTES: When ANSI_QUOTES is enabled, double quotes cannot be used to quote a string because it is interpreted as an identifierERROR: configuration failed for package ‘openssl’
removing ‘/usr/local/lib/R/site-library/openssl’
The ubuntu system lacks openssl:
apt-get install openssl
apt-get install openssl-devel
Or:
wget https://www.openssl.org/source/openssl-1.1.1i.tar.gz
tar -xvf openssl-1.1.1i.tar.gz
cd openssl-1.1.1i/
./config
make && make install
./config shared
make clean
make && make install
Node RSA library, read the key file, add and remove the secret report error
throw newInvalidAsn1Error(‘Expected 0x’ + tag.toString(16) +
^
Error [InvalidAsn1Error]: Expected 0x2: got 0x30
The reason is the key file format problem
Pkcs1: public key (- — begin RSA public key ——) and private key (- — begin RSA private key ——) pkcs8: public key (- — begin RSA public key ——) and private key (- — begin private key—
To put it simply, delete the word RSA in the public key and private key
The node RSA library is formatted in this way.
Created a SpringBoot project, used SpringCloud, and then started the project and reported an error:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘configurationPropertiesBeans’ defined in class path resource [org/springframework/cloud/autoconfigure/ConfigurationPropertiesRebinderAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans]: Factory method ‘configurationPropertiesBeans’ threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
It is found that the version of SpringBoot is inconsistent with the version of SpringCloud
Corresponding to the modified version
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.6.RELEASE</version>
<relativePath/>
</parent>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version></version>
<type>pom</type>
<scope>import</scope>
</dependency>
Gensim was installed successfully, but a runtimeerror occurred during import
the runtime error is as follows:
runtimeerror: Python extensions are unavailable. Without them, this gensim functionality is disabled. If you’ve installed from a package, ask the package maintainer to include Python extensions. If you’re building gensim from source yourself, run python setup. py build_ Ext — inplace and retry.
after reading other users’ articles, it is found that numpy and SciPy are incompatible with gensim
The solution steps are as follows
First, check the version information of your Python adaptation before downloading the file
Open CMD and directly enter PIP debug -- verbose on the command line. The results are as follows
after finding it, go to the following link to download the adapted numpy and SciPy files
https://www.lfd.uci.edu/ ~gohlke/pythonlibs/
The corresponding downloaded file on my computer is
After downloading, enter CMD
CD to download SciPy and numpy + MKL
Python – M PIP install scipy-1.7.2-cp37-cp37m-win_ amd64.whl
python -m pip install numpy-1.21.4+mkl-cp37-cp37m-win_ amd64.whl
Then uninstall gensim and install gensim
finally, you can import