Everyday error and fixes¶
while yarn or npm install if you see python error¶
Install python version 2.7 and set environment path c:\python
For multiple node version try using¶
For errors¶
gyp verb check python checking for Python executable "python2" in the PATH gyp verbwhichfailed Error: not found: python2
npm --add-python-to-path='true' --debug install --global windows-build-tools
npm install --global node-gyp
ReturnsAsync(null) creates a build error when using Moq for unit test¶
There are two ReturnsAsync extension methods in Moq ReturnsExtensions class.They have following parameters: (this IReturns<TMock, Task<TResult>> mock, TResult value) (this IReturns<TMock, Task<TResult>> mock, Func<TResult> valueFunction)
To fix this error you need to help compiler choose correct method overload - cast null to type of task's result (e.g. string): ReturnsAsync((string)null) Or you can pass value which is null string s = null; ... ReturnsAsync(s); Alternatively, ReturnsAsync(default(string)) Or user anonymous function ReturnsAsync(() => null)
docker: Got permission denied while trying to connect to the Docker daemon socket at unix¶
make usre you configure you 'user.name' and 'user.email' in git Ubuntu¶
If you see error while running python in docker try¶
https://code.visualstudio.com/updates/v1_36#_launch-terminals-with-clean-environments. set terminal.integrated.inheritEnv: false
Error: FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory¶
Solution: export NODE_OPTIONS="--max-old-space-size=8192"
Error: Evaluated project metadata file could not be found for service ailgo.web¶
Solution: Delete /obj folder from cs projects
If it doesn't work, sometime auto update in mac install dotnet preview version. So uninstall them or use the right version.
To uninstall
version="7.0.100-rc.2.22477.23"
sudo rm -rf /usr/local/share/dotnet/sdk/$version
sudo rm -rf /usr/local/share/dotnet/shared/Microsoft.NETCore.App/$version
sudo rm -rf /usr/local/share/dotnet/shared/Microsoft.AspNetCore.All/$version
sudo rm -rf /usr/local/share/dotnet/shared/Microsoft.AspNetCore.App/$version
sudo rm -rf /usr/local/share/dotnet/host/fxr/$version
Error
ERROR [internal] load metadata for docker.io/library
Example when building image on mac with image built on Windows OpenJDK maintained by Microsoft 8, 11, 17
Might need to specify the arch
!!!error ubuntu stuck at Default Kerberos version 5 realm: Here are the two possible ways to set DEBIAN_FRONTEND:
1 .Setting it via ARG as this is only available during build:
ARG DEBIAN_FRONTEND=noninteractive
RUN apt-get -qq install {your-package}
2. When required, setting it on-the-fly.
RUN apt-get update && \
DEBIAN_FRONTEND=noninteractive apt-get -qq install {your-package}
Use DEBIAN_FRONTEND=noninteractive on install command
```console
RUN apt-get update && \
DEBIAN_FRONTEND=noninteractive apt-get install -y python3 python3-pip curl wget gcc krb5-config libkrb5-dev git
```
!!!error ModuleNotFoundError: No module named: If encounter ModuleNotFoundError from container despite package is installed
Add to Dockerfile
```console
ln -s /usr/bin/python3 /usr/bin/python && \
rm -rf /var/lib/apt/lists/*
```
To check if he package is installed
```pip list```
!!!error PSQLException : The connection attempt failed. postgres Solution: somehow hive requires posgres user and user role despite env variables and it keeps restarting during schema initialization. So, Create user and schema manually
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/hive/lib/log4j-slf4j-impl-2.17.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.30.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
Metastore connection URL: jdbc:postgresql://postgres_db:5432/metastore
Metastore Connection Driver : org.postgresql.Driver
Metastore connection User: postgres
org.apache.hadoop.hive.metastore.HiveMetaException: Failed to get schema version.
Underlying cause: org.postgresql.util.PSQLException : The connection attempt failed.
SQL Error code: 0
org.apache.hadoop.hive.metastore.HiveMetaException: Failed to get schema version.
at org.apache.hadoop.hive.metastore.tools.HiveSchemaHelper.getConnectionToMetastore(HiveSchemaHelper.java:94)
at org.apache.hive.beeline.HiveSchemaTool.getConnectionToMetastore(HiveSchemaTool.java:169)
at org.apache.hive.beeline.HiveSchemaTool.testConnectionToMetastore(HiveSchemaTool.java:475)
at org.apache.hive.beeline.HiveSchemaTool.doInit(HiveSchemaTool.java:581)
at org.apache.hive.beeline.HiveSchemaTool.doInit(HiveSchemaTool.java:567)
at org.apache.hive.beeline.HiveSchemaTool.main(HiveSchemaTool.java:1517)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:323)
at org.apache.hadoop.util.RunJar.main(RunJar.java:236)
Caused by: org.postgresql.util.PSQLException: The connection attempt failed.
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:262)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)
at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:215)
at org.postgresql.Driver.makeConnection(Driver.java:406)
at org.postgresql.Driver.connect(Driver.java:274)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at org.apache.hadoop.hive.metastore.tools.HiveSchemaHelper.getConnectionToMetastore(HiveSchemaHelper.java:88)
... 11 more
Caused by: java.net.UnknownHostException: postgres_db
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:607)
at org.postgresql.core.PGStream.<init>(PGStream.java:64)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:133)
... 18 more