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问题 I am using Python 3.6 and Tensorflow 2.0, and have some Keras codes: import keras from keras.models import Sequential from keras.layers import Dense model = Sequential() model.add(Dense(1)) model.compile(optimizer='adam',loss='mean_squared_error',metrics=['accuracy']) However I got the error: "Keras requires TensorFlow 2.2 or higher. Install TensorFlow via pip install tensorflow " when trying to run it. I checked on https://keras.io/, it says Keras was built on Tensorflow 2.0. So I am

问题 How do I check the version of tomcat 7 that is installed on RHEL? I looked in the bin directory and cannot find version.sh. 回答1: You can publish a jsp with the following scriptlet: <%= application.getServerInfo() %> Or grep catalina.out for a line like: INFO: Starting Servlet Engine: Apache Tomcat/7.0.37 Or take a look at the file org/apache/catalina/util/ServerInfo.properties inside lib/catalina.jar . Just to give you 3 options ;). 回答2: Try this to see the names and versions of any Tomcat

问题 I have R package ape installed in 2 locations, that are BOTH part of the .libPath() - ape version 3.3 in location1 - ape version 3.4 in location2 in ape version 3.4, there is a new function clustalomega . I have NOT loaded any of the 2 packages (using library ) ape::clustalomega doesn't work on my machine. I suspect it comes from the fact that R is considering first the old version of ape it has found in location1. I have tried to reverse the order of the libPath, with .libPath(rev(.libPath()

问题 I have to check if the Windows version is not lower than 6.1 which is Windows 7. If it is lower I need to show my own message and then exit setup. If I write this in the [Setup] section: [Setup] MinVersion=6.1 the message that is shown is a standard one. How can I show my own message and then exit setup? 回答1: Set WindowsVersionNotSupported in [Messages] section: [Messages] WindowsVersionNotSupported=You are using an ancient version of Windows. 来源： https://stackoverflow.com/questions/60867566

问题 I have to check if the Windows version is not lower than 6.1 which is Windows 7. If it is lower I need to show my own message and then exit setup. If I write this in the [Setup] section: [Setup] MinVersion=6.1 the message that is shown is a standard one. How can I show my own message and then exit setup? 回答1: Set WindowsVersionNotSupported in [Messages] section: [Messages] WindowsVersionNotSupported=You are using an ancient version of Windows. 来源： https://stackoverflow.com/questions/60867566

问题 I have to check if the Windows version is not lower than 6.1 which is Windows 7. If it is lower I need to show my own message and then exit setup. If I write this in the [Setup] section: [Setup] MinVersion=6.1 the message that is shown is a standard one. How can I show my own message and then exit setup? 回答1: Set WindowsVersionNotSupported in [Messages] section: [Messages] WindowsVersionNotSupported=You are using an ancient version of Windows. 来源： https://stackoverflow.com/questions/60867566

问题 I'm using a Macbook with the latest macOS (10.12.3), and I installed Homebrew by running: /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" After that I installed node: brew install node And tried to upgrade it: > brew upgrade node > Error: node 7.8.0 already installed I got an error saying the version 7.8.0 is already installed, that was expected since I had just installed the most recent version. Problem: on the terminal I ran: > node -

问题 Could somebody please let me know which of the following two approaches is recommended and why : Make the necessary changes to ServerInfo.properties Define "error-page" in web.xml 回答1: The answers are a bit outdated, so: If you're using a tomcat 6 or newer (I've tested on tomcat 7) you can use the ErrorReportValve to achieve the same in a way that is much easier to configure and maintain. Just add the following lines to the Host section of your server.xml (where you should already have the

问题 I get python 2.7 when running sudo. I've tried changing my .bash_profile and .bashrc from my original user and root, but to no avail. $ python Python 3.5.2 (default, Oct 11 2016, 05:05:28) [GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.38)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> ^D $ sudo python Python 2.7.10 (default, Oct 23 2015, 19:19:21) [GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.59.5)] on darwin Type "help", "copyright",

问题 How can I know which version of C is supported by the VS2019 compiler? I looked in the project C/C++ and Linker command lines and found no -std=Cxx flag. The following code compiles: for (int i = index; i < nb_users - 1; i++) { users[i] = users[i + 1]; } So I guess it's C99 according to this, but is there a way to check this somewhere in VS2019? 回答1: VS2019 supports ANSI C90 plus a few other features from a few later standards that are required in C++. For example, you can tell that C99 is