当我在Rails应用程序中运行rake db:seed时，我得到这个错误:
无效的US-ASCII字节序列(参数错误)
我刚刚添加了science_majors和我的种子文件，现在当我运行rake db:seed时，它给了我这个错误:
无效字节序列错误
为什么会这样，我该如何修复它?
seeds.rb部分
@college = College.find_or_create_by_name!('University of Pittsburgh')
if @college.update_attributes(
url: 'university-of-pittsburgh',
public: 'Public',
years: '4-year',
category: 'National University',
calendar: 'Semester',
location: 'Pittsburgh, PA',
setting: 'Large City (250-500k)',
retention: '90',
majors: 'business/marketing: 15%|social sciences: 14%|health professions: 11%|english: 10%|engineering: 9%|psychology: 8%|biology: 7%|history: 5%',
scholarships_link: 'http://www.oafa.pitt.edu/universityschlrs.aspx',
map: '<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=university+of+pittsburgh&aq=&sll=40.444261,-79.970448&sspn=0.142165,0.251656&ie=UTF8&hq=university+of+pittsburgh&t=m&ll=40.443486,-79.958245&spn=0.010798,0.021038&output=embed"></iframe><br /><small><a href="https://maps.google.com/maps?f=q&source=embed&hl=en&geocode=&q=university+of+pittsburgh&aq=&sll=40.431368,-79.9805&sspn=0.142165,0.251656&ie=UTF8&hq=university+of+pittsburgh&t=m&ll=40.443486,-79.958245&spn=0.010798,0.021038" style="color:#0000FF;text-align:left">View Larger Map</a></small>',
street_view: '<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="https://maps.google.com/maps?f=q&source=embed&hl=en&geocode=&q=University+of+Pittsburgh,+4200+Fifth+Ave,+Pittsburgh,+PA&aq=0&oq=uni&sll=40.444261,-79.970448&sspn=0.142165,0.251656&ie=UTF8&hq=University+of+Pittsburgh,+4200+Fifth+Ave,+Pittsburgh,+PA&ll=40.443486,-79.958245&spn=0.010798,0.021038&t=m&layer=c&cbll=40.441775,-79.956671&panoid=BgWQKMiSI1fpwP7JUF16Vg&cbp=12,45.25,,0,-3.34&output=svembed"></iframe><br /><small><a href="https://maps.google.com/maps?f=q&source=embed&hl=en&geocode=&q=University+of+Pittsburgh,+4200+Fifth+Ave,+Pittsburgh,+PA&aq=0&oq=uni&sll=40.431368,-79.9805&sspn=0.142165,0.251656&ie=UTF8&hq=University+of+Pittsburgh,+4200+Fifth+Ave,+Pittsburgh,+PA&ll=40.443486,-79.958245&spn=0.010798,0.021038&t=m&layer=c&cbll=40.441775,-79.956671&panoid=BgWQKMiSI1fpwP7JUF16Vg&cbp=12,45.25,,0,-3.34" style="color:#0000FF;text-align:left">View Larger Map</a></small>',
housing: '<iframe src="http://www.tour.pitt.edu/tour-categories/residence-halls" scrolling="no" height="820" width="900"></iframe>',
food: '<div style="overflow: hidden; max-width: 1000px;"><iframe scrolling="no" src="http://www.pc.pitt.edu/dining/menus.php" style="margin-left: 0; height: 2000px; margin-top: -370px; margin-bottom: -375px; width: 750px;"></iframe></div>',
weather: '<div style="overflow: hidden; max-width: 500px;"><iframe scrolling="no" src="http://www.weather.com/weather/wxclimatology/monthly/graph/USPA1290" style="margin-left: -40px; height: 1570px; margin-top: -490px; width: 500px;"></iframe></div>',
dorms: 'Towers (fr.)|Sutherland (fr.)|Lothrop (fr.)|Nordenberg (fr.)|Holland (fr.)|Forbes (fr.; honors)|McCormick|Brackenridge|Amos|Bruce|Panther|Pennsylvania|Ruskin|Bouquet Gardens|Oakwood Apartments|Centre-Plaza Apartments|Forbes-Craig Apartments (honors)',
science_majors: 'Actuarial Mathematics|Applied Mathematics|Bioinformatics|Biological Sciences|Chemistry*|Computer Science|Ecology and Evolution|Environmental Geology|Environmental Studies|Geology|History and Philosophy of Science|Linguistics*|Mathematics*|Mathematics-Economics|Mathematics-Philosophy|Microbiology|Molecular Biology|Natural Sciences Area|Neuroscience*|Physics*|Physics and Astronomy|Scientific Computing|Statistics',
social_science_majors: 'Economics*|Economics–Statistics|History*|Political Science*|Politics-Philosophy|Psychology|Sociology*|Urban Studies',
humanities_majors: 'Africana Studies*|Africana Studies–English|Anthropology|Chinese*|Classics*|English Literature*|English Writing|Film Studies*|French*|German|History of Art & Architecture|Humanities Area|Italian*|Italian Studies|Japanese*|Liberal Studies|Music*|Philosophy*|Religious Studies*|Russian|Slavic Studies|Spanish|Studio Arts*|Theatre Arts*',
business_majors: 'Accounting|Finance|General Management|Global Management|Marketing',
engineering_majors: 'Bioengineering*|Chemical Engineering*|Civil Engineering*|Computer Engineering|Electrical Engineering*|Engineering Physics|Industrial Engineering*|Materials Science and Engineering*|Mechanical Engineering*',
professional_majors: 'Administration of Justice*|Applied Developmental Psychology|Architectural Studies|Athletic Training|Clinical Dietetics and Nutrition|Communication: Rhet & Comm|Communication Science|Dental Hygiene|Emergency Medicine|Health Information Management|Health Services|Health and Physical Activity|Information Science|Legal Studies*|Media and Professional Communications|Nursing|Pharmacy|Public Service*|Rehabilitation Science|Social Work*'
)
else
# handle validation errors
end
@college= College.find_or_create_by_name!('Harvard')
if @college.update_attributes(
url: 'harvard',
public: 'Private',
years: '4-year',
category: 'National University',
calendar: 'Semester',
location: 'Cambridge, MA',
setting: 'Small City (50-250k)',
degrees: 'Bachelors, Masters, Doctoral',
rotc: 'Air Force, Army, Navy',
considered: 'Academic GPA|Alumni Relation|Application Essay|Character/Personal Qualities|Extracurricular Activities|First Generation College Student|Geographical Residence|Interview|Racial/Ethnic Status|Recommendations|Rigor of secondary school record|Standardized Test Scores|Talent/Ability|Volunteer Work|Work Experience',
student_faculty: '7 to 1')
else
# handle validation errors
end
我漏掉了所有其他的大学。到目前为止，我有200所学校，但皮特是目前唯一一个有全面数据的学校。剩下的只有基本数据，比如哈佛。为了简洁起见，我也省略了皮特的一些数据，但如果你想让我包括其他数据，请告诉我。
编辑:我试着在science_majors中取出* 's，然后运行rake db:seed，但这并没有改变任何事情。
您收到一个编码错误，因为您的文件系统没有配置为编码您添加的日期(因为它可能包含新字符-可能在您的HTML实体编码的地图URL中-不存在于您之前的数据种子中)。
通过在您的机器上设置UTF-8语言环境，以下操作将解决此错误:
# from your command line
export LANG=en_US.UTF-8
export LANGUAGE=en_US.UTF-8
export LC_ALL=en_US.UTF-8
bundle
设置系统区域设置的好处是，所有gem(以后的)将使用UTF-8编码进行捆绑。
编辑:或者，如果你不想改变你的系统编码，你可以通过在你的Gemfile中指定一个编码标准来设置你的编码项目范围:
if RUBY_VERSION =~ /1.9/ # assuming you're running Ruby ~1.9
Encoding.default_external = Encoding::UTF_8
Encoding.default_internal = Encoding::UTF_8
end
添加
#encoding: utf-8
在文件顶部
您也可以尝试export RUBYOPT="-KU -E utf-8:utf-8"正如在这个GH线程中提到的
如果你在ruby docker容器中遇到这个问题，你可以设置LANG=C.UTF-8:
docker run -it --rm -e LANG=C.UTF-8 ruby ...
像其他人建议的那样，我将#encoding: utf-8添加到我的(在本例中是seed.rb)文件的顶部，但仍然无法使rake任务工作。
有趣的是，一个朋友建议我从种子文件的顶部删除额外的rails生成的注释，这样只留下#encoding: utf-8。
您的种子文件中有一个无效字符，在我的情况下，将单引号从'更改为'。